US3535543A - Microwave power receiving antenna - Google Patents

Microwave power receiving antenna Download PDF

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US3535543A
US3535543A US820965A US3535543DA US3535543A US 3535543 A US3535543 A US 3535543A US 820965 A US820965 A US 820965A US 3535543D A US3535543D A US 3535543DA US 3535543 A US3535543 A US 3535543A
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antenna
heat
support post
reflector
enclosure
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US820965A
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Carroll C Dailey
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National Aeronautics and Space Administration NASA
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00Antennas with active circuits or circuit elements integrated within them or attached to them
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64GCOSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00Cosmonautic vehicles
    • B64G1/22Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/20Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/20Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
    • H02J50/27Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of receiving antennas, e.g. rectennas
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M11/00Power conversion systems not covered by the preceding groups
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40The network being an on-board power network, i.e. within a vehicle
    • H02J2310/44The network being an on-board power network, i.e. within a vehicle for aircrafts

Definitions

  • FIG 7 INVEN TOR CARR OLL C. DAILEY A ORNE Y3 3,535,543 MICROWAVE POWER RECEIVING ANTENNA Carroll C. Dailey, Huntsville, Ala., assignor to the United States of America as represented by the Administrator of the National Aeronautics and Space Administration Filed May 1, 1969, Ser. No. 820,965 Int. Cl. H02j 1/00 U.S. Cl.
  • a microwave power receiving antenna array having a solid-state rectifier circuit at the center of each of a plurality of dipole antennas for conversion of the high-frequency energy to direct current.
  • the device effectively and efficiently solves the problem of heat dissipation from the diode rectifier enclosure by construction of the dipole supporting posts, the antenna reflecter and the dipole elements as heat pipe devices.
  • Each supporting post and the antenna reflector may either communicate for greater efficiency in dissipating heat or be physically separated to simplify fabrication.
  • This invention relates to power receiving antennas and more particularly to a rectifying dipole antenna array having a highly efficient structure for dissipation of heat from the rectifying circuit.
  • a rectifying circuit may be used to convert the high frequency energy to direct current.
  • the diodes which transform the high frequency energy to DC are usually quite efiicient (approximately 70 to 90 percent). However, there is some loss of energy which ap pears as heat. This heat raises the temperature of the diodes. Also, the diodes and the antenna or antenna array are subject to the heating of the suns rays. These heating effects have the inherent disadvantage of limiting the amount of electrical power that can be handled by the array because of the temperature limits of the diodes. For
  • this limit typically occurs at about 120 centigrade, although specific applications may show limits somewhat higher or lower.
  • Still another object of this invention is to provide a microwave receiving antenna having the capability of efficient dissipation of heat from its rectifier circuits.
  • Yet another object of this invention is to provide a more efiicient microwave receiving antenna by modifying conventional elements of antenna structure so as to better radiate the heat from the antennas rectifier circuit.
  • FIG. 1 is an isometric view of an orbiting space laboratory transmitting electrical power to a subsatellite.
  • FIG. 2 is a block diagram of a microwave power system capable of utilizing the present invention.
  • FIG. 3 is a plan view of a dipole having a bridge recti bomb at its center, illustrating part of one embodiment of the present invention.
  • FIG. 4 is a side view of part of a microwave receiving antenna, which illustrates one embodiment of the present invention.
  • FIG. 5 is a horizontal sectional view of the support post taken along line 55 of FIG. 4 and showing the inner construction of the heat pipe support post.
  • FIG. 6 is a side view of the microwave power receiving antenna array showing one row of dipoles.
  • FIG. 7 is a plan view of one embodiment of the microwave power receiving antenna array, showing two rows of three dipoles mounted on a reflector.
  • FIG. 1 there is illustrated an orbital space laboratory, designated generally by numeral 10, transmitting electrical power by microwaves to a subsatellite, designated generally by numeral 12.
  • Laboratory 10 includes a spent rocket stage 14 having solar panels 16, docking adapter 18 and command modules 20 and 22.
  • Solar panels 16 may be replaced by a nuclear power source in other versions of laboratory 10.
  • microwave power system which includes the present invention is shown in block diagram form.
  • Electrical power in the form of microwaves is furnished by microwave power generator 28 having power supply 30.
  • Power transmitting antenna 24 is aimed at power receiving antenna 26 and transmits electrical power in the form of microwave beam 32 to receiving antenna 26.
  • Subsatellite 12 uses this power received from beam 32 to charge its batteries or fuel cells or for powering electric thrusters.
  • the energy in beam 32 is converted from high-frequency energy (approximately 2 megahertz to 30 gigahertz) to a direct current which is fed into power 3 conditioning equipment 34 to transform it to the actual voltages required for the load 36.
  • FIG. 3 shows a self-supporting, single, half-wave, Hertz antenna, designated generally by numeral 38, having a pair of dipole antenna elements 40.
  • the conversion from high-frequency energy to direct current is accomplished by a plurality of diodes 42 which are connected in a bridge rectifier circuit 44 (shown in diagrammatic form).
  • Rectifier circuit 44 is contained in dipole center enclosure 46 and is connected between the dipole elements 40 and a pair of output terminals 48.
  • Dipole elements 40 are securely fastened to opposite sides of enclosure 46.
  • FIG. 4 ShOWs a single, half-wave dipole antenna 38 mounted on enclosure 46.
  • Enclosure 46 is shown in vertical section so that diodes 42 may be seen, contained in potting compound 49.
  • Enclosure 46 is mounted on support post 50 which is in turn mounted on an antenna reflector 52.
  • Support post 50 is a hollow pipe which is closed at its upper end where it is fastened to enclosure 46 and open at its lower end where it is fastened to antenna reflector 52.
  • Reflector 52 comprises a pair of metal walls 54 and 55, a pair of ends 56, and a pair of sides 57 (see FIG. 7) all of which make reflector 52 a closed container. However, the cavity of reflector 52 communicates with the lower end of support post 50, as described above.
  • Both support post 50 and antenna reflector 52 utilize known principles of operation of a heat pipe. As may be seen in both FIG. 4 and the horizontal sectional view of the support post shown in FIG. 5, all the interior surfaces of both support post 50* and reflector 52 are covered with a wicking material 58, which may be screen wire or a similar material.
  • the communicating space enclosed by poth the support post 50 and the antenna reflector 52 together contains a heat transfer fluid 60, which may be water, lithium or a number of other substances which are easily vaporized.
  • FIGS. 6 and 7 are side and plan views, respectively, of a microwave power receiving antenna 26 having a plurality of half-wave dipole antennas 38.
  • Each dipole 38 is supported by a corresponding dipole center enclosure 46 and support post 50. All dipoles 38 are mounted on one antenna reflector 52, so as to provide a combined broadside and collinear antenna array.
  • Each support post 50 communicates with the antenna reflector 52 in a manner already described for FIG. 4 above.
  • the internal construction of each support post 50 and the antenna reflector 52, including wicking material 58 and the presence of heat transfer fluid 60, is also as described for FIG. 4.
  • microwave power receiving antenna 26 One cycle of operation of the microwave power receiving antenna 26 follows: Microwave power beam 32 is received on the dipole elements 40 of half-wave antenna 38. Bridge rectifier circuit 44 comprising diodes 42 rectifies the incoming high-frequency energy to convert it to direct current. Power conditioner 34 changes the form of the direct current as desired and transmits it to the load 36. Heat developed within enclosure 46 is absorbed by the top end of support post 50. Heat transfer fluid 60 absorbs heat from the end of support post 50- and is Vaporized. The vapor 62 then moves under vapor pressure down the support post 50 and passes into the inner portion of antenna reflector 52.
  • the vapor 60 condenses back to fluid 60 and forms deposits on the inner sides of antenna reflector walls 54 and 55, antenna reflector ends 56, and antenna reflector sides 57.
  • the fluid 60 (condensate) then moves by means of capillary flow through the wicking material 58 back to the top of support post 50, where it absorbs more heat and starts the cycle over.
  • vapor 62 gives up heat which is absorbed by walls 54 and 55, ends 56, and sides 57.
  • heat is distributed evenly to all parts of the surface of antenna reflector 52 so that reflector 52 is able to effectively dissipate this heat by radiation into space.
  • each support post 50 does not communicate with the interior cavity of the antenna reflector 52. Instead, the upper sidewall 54 has no openings.
  • each support post 50 as well as the antenna reflector 52 contains its own supply of heat transfer fluid 60, which cycles within the cavity available. Thus, heat is transferred down the support post 50 and passes by conduction through wall 54 of the antenna reflector 52. The heat is then transferred evenly to the walls of the antenna reflector 52 where it is dissipated in the manner already described above.
  • the invention may be made with a conventional flat or concave antenna reflector 52, with a corresponding sacrifice in the heat dissipation capability of the antenna array.
  • Each of the antenna dipole elements 40 is made in the form of a heat pipe having its interior walls and ends lined with a wicking material 58. Also, each dipole element 40 is completely enclosed and contains its own supply of 'heat transfer fluid 60. Fluid 60 cycles within the cavity of each dipole element 40 in a manner already described above for support post 50, taking 011 heat from enclosure 46 and removing it to the outside end of each dipole 40, where it is radiated to space.
  • the embodiment which has support posts which communicate with the antenna reflector and which also has heat pipe conducting dipole elements is, of course, the most eflicient.
  • a microwave power receiving antenna comprising:
  • said rectifying circuit comprising a plurality of diodes
  • each said support post being mounted on said antenna reflector.
  • each said support post comprises:
  • each said dipole antenna element comprises:
  • each said support post comprises an enclosed
  • said antenna reflector comprises an enclosed, flat, double-wall enclosure, the enclosed area of each said support post communicating with the enclosed area of said antenna reflector, to form a total enclosed area including the enclosed areas of each said support post and said antenna reflector,
  • each said dipole antenna element comprises:

Description

vit- 0 0 c. c. DAILEY MICROWAVE POWER RECEIVING ANTENNA 3 Sheets-Sheet 1 INVE N TOR Filed May 1, 1969 g 22: TTORNE YS CARROLL c DAILEY BY 27 Q 5 Sheets-Sheet 2 POWER SUPPLY 26 28) 3* 36 MICRO WAVE R LOAD GENER CONDI IONER FE G. 5
INVENTOR CARROLL C. DAILEY ORNEYS Oct. 20, 1970 c. c. DAILEY ,5
MICROWAVE POWER RECEIVING ANTENNA Filed May 1, 1969 3 Sheets-Sheet 5 FIG 7 INVEN TOR CARR OLL C. DAILEY A ORNE Y3 3,535,543 MICROWAVE POWER RECEIVING ANTENNA Carroll C. Dailey, Huntsville, Ala., assignor to the United States of America as represented by the Administrator of the National Aeronautics and Space Administration Filed May 1, 1969, Ser. No. 820,965 Int. Cl. H02j 1/00 U.S. Cl. 307-149 6 Claims ABSTRACT OF THE DISCLOSURE A microwave power receiving antenna array having a solid-state rectifier circuit at the center of each of a plurality of dipole antennas for conversion of the high-frequency energy to direct current. The device effectively and efficiently solves the problem of heat dissipation from the diode rectifier enclosure by construction of the dipole supporting posts, the antenna reflecter and the dipole elements as heat pipe devices. Each supporting post and the antenna reflector may either communicate for greater efficiency in dissipating heat or be physically separated to simplify fabrication.
ORIGIN OF THE INVENTION The invention described herein was made by an employee of the United States Government and may be manufactured or used by or for the Government for governmental purposes without the payment of any royalties thereon or therefor.
BACKGROUND OF THE INVENTION Field of the invention This invention relates to power receiving antennas and more particularly to a rectifying dipole antenna array having a highly efficient structure for dissipation of heat from the rectifying circuit.
Description of the prior art One of the comparatively recent modes of electrical power transmission is power transfer by microwaves using frequencies as high as about 30 gigahertz. One attractive use of this type of power transmission is for powering helicopters or other types of aircraft from a remote location. Another use which appears attractive is transmission of power from a central manner space station, which can service a number of small independent subsatellites or experiment modules located distances as much as several kilometers away. Batteries in a subsatellite can be recharged with energy generated in the main space station, thus precluding the need for solar arrays or extra batteries on the subsatellite, increasing its versatility, and prolonging its useful life.
In the power receiving antenna for a microwave power transmission system, a rectifying circuit may be used to convert the high frequency energy to direct current. The diodes which transform the high frequency energy to DC are usually quite efiicient (approximately 70 to 90 percent). However, there is some loss of energy which ap pears as heat. This heat raises the temperature of the diodes. Also, the diodes and the antenna or antenna array are subject to the heating of the suns rays. These heating effects have the inherent disadvantage of limiting the amount of electrical power that can be handled by the array because of the temperature limits of the diodes. For
diodes of interest in space applications, this limit typically occurs at about 120 centigrade, although specific applications may show limits somewhat higher or lower.
In order to keep the diode temperature down, it is necessary to radiate heat to space. The area of the radiating surface available and the coatings applied to the sur- Patented Oct. 20, 1970 face determine how much heat can be radiated at a specific temperature. In the case of antenna dipoles the radiating area is small, since the conductors are narrow and the dipoles are also very small.
SUMMARY OF THE INVENTION Accordingly, it is an object of this invention to provide an improved microwave receiving antenna.
Still another object of this invention is to provide a microwave receiving antenna having the capability of efficient dissipation of heat from its rectifier circuits.
Yet another object of this invention is to provide a more efiicient microwave receiving antenna by modifying conventional elements of antenna structure so as to better radiate the heat from the antennas rectifier circuit.
These and other objects are accomplished in the present invention which provides at least one pair of dipole antenna elements supported by an enclosure containing a rectifying circuit comprising a plurality of diodes. Each enclosure and its corresponding pair of dipoles is mounted on a heat conducting support post, which in turn is mounted on a large antenna reflector.
BRIEF DESCRIPTION OF THE DRAWINGS The invention will be more fully understood by the following detailed description when taken together with the accompanying drawings in which:
FIG. 1 is an isometric view of an orbiting space laboratory transmitting electrical power to a subsatellite.
FIG. 2 is a block diagram of a microwave power system capable of utilizing the present invention.
FIG. 3 is a plan view of a dipole having a bridge recti fier at its center, illustrating part of one embodiment of the present invention.
FIG. 4 is a side view of part of a microwave receiving antenna, which illustrates one embodiment of the present invention.
FIG. 5 is a horizontal sectional view of the support post taken along line 55 of FIG. 4 and showing the inner construction of the heat pipe support post.
FIG. 6 is a side view of the microwave power receiving antenna array showing one row of dipoles.
FIG. 7 is a plan view of one embodiment of the microwave power receiving antenna array, showing two rows of three dipoles mounted on a reflector.
DESCRIPTION OF THE PREFERRED EMBODIMENT With continued reference to the accompanying figures wherein like numerals designate similar parts throughout the various views and with initial attention directed to FIG. 1 there is illustrated an orbital space laboratory, designated generally by numeral 10, transmitting electrical power by microwaves to a subsatellite, designated generally by numeral 12. Laboratory 10 includes a spent rocket stage 14 having solar panels 16, docking adapter 18 and command modules 20 and 22. Solar panels 16 may be replaced by a nuclear power source in other versions of laboratory 10.
Referring now to FIG. 2, a microwave power system which includes the present invention is shown in block diagram form. Electrical power in the form of microwaves is furnished by microwave power generator 28 having power supply 30. Power transmitting antenna 24 is aimed at power receiving antenna 26 and transmits electrical power in the form of microwave beam 32 to receiving antenna 26. Subsatellite 12 uses this power received from beam 32 to charge its batteries or fuel cells or for powering electric thrusters. The energy in beam 32 is converted from high-frequency energy (approximately 2 megahertz to 30 gigahertz) to a direct current which is fed into power 3 conditioning equipment 34 to transform it to the actual voltages required for the load 36.
FIG. 3 shows a self-supporting, single, half-wave, Hertz antenna, designated generally by numeral 38, having a pair of dipole antenna elements 40. The conversion from high-frequency energy to direct current is accomplished by a plurality of diodes 42 which are connected in a bridge rectifier circuit 44 (shown in diagrammatic form). Rectifier circuit 44 is contained in dipole center enclosure 46 and is connected between the dipole elements 40 and a pair of output terminals 48. Dipole elements 40 are securely fastened to opposite sides of enclosure 46.
FIG. 4 ShOWs a single, half-wave dipole antenna 38 mounted on enclosure 46. Enclosure 46 is shown in vertical section so that diodes 42 may be seen, contained in potting compound 49. Enclosure 46 is mounted on support post 50 which is in turn mounted on an antenna reflector 52. Support post 50 is a hollow pipe which is closed at its upper end where it is fastened to enclosure 46 and open at its lower end where it is fastened to antenna reflector 52. Reflector 52 comprises a pair of metal walls 54 and 55, a pair of ends 56, and a pair of sides 57 (see FIG. 7) all of which make reflector 52 a closed container. However, the cavity of reflector 52 communicates with the lower end of support post 50, as described above.
Both support post 50 and antenna reflector 52 utilize known principles of operation of a heat pipe. As may be seen in both FIG. 4 and the horizontal sectional view of the support post shown in FIG. 5, all the interior surfaces of both support post 50* and reflector 52 are covered with a wicking material 58, which may be screen wire or a similar material. The communicating space enclosed by poth the support post 50 and the antenna reflector 52 together contains a heat transfer fluid 60, which may be water, lithium or a number of other substances which are easily vaporized.
FIGS. 6 and 7 are side and plan views, respectively, of a microwave power receiving antenna 26 having a plurality of half-wave dipole antennas 38. Each dipole 38 is supported by a corresponding dipole center enclosure 46 and support post 50. All dipoles 38 are mounted on one antenna reflector 52, so as to provide a combined broadside and collinear antenna array. Each support post 50 communicates with the antenna reflector 52 in a manner already described for FIG. 4 above. The internal construction of each support post 50 and the antenna reflector 52, including wicking material 58 and the presence of heat transfer fluid 60, is also as described for FIG. 4.
One cycle of operation of the microwave power receiving antenna 26 follows: Microwave power beam 32 is received on the dipole elements 40 of half-wave antenna 38. Bridge rectifier circuit 44 comprising diodes 42 rectifies the incoming high-frequency energy to convert it to direct current. Power conditioner 34 changes the form of the direct current as desired and transmits it to the load 36. Heat developed within enclosure 46 is absorbed by the top end of support post 50. Heat transfer fluid 60 absorbs heat from the end of support post 50- and is Vaporized. The vapor 62 then moves under vapor pressure down the support post 50 and passes into the inner portion of antenna reflector 52. When the vapor 60 reaches a comparatively cool spot on the surface of antenna reflector 52 (which would theoretically be midway between the hot spots caused by the heat input from the support post 50 or as far as possible from a support post 50), the vapor 62 condenses back to fluid 60 and forms deposits on the inner sides of antenna reflector walls 54 and 55, antenna reflector ends 56, and antenna reflector sides 57. The fluid 60 (condensate) then moves by means of capillary flow through the wicking material 58 back to the top of support post 50, where it absorbs more heat and starts the cycle over. In condensing, vapor 62 gives up heat which is absorbed by walls 54 and 55, ends 56, and sides 57. Thus, heat is distributed evenly to all parts of the surface of antenna reflector 52 so that reflector 52 is able to effectively dissipate this heat by radiation into space.
In an alternative arrangement of the invention the interior cavity of each support post 50 does not communicate with the interior cavity of the antenna reflector 52. Instead, the upper sidewall 54 has no openings. In this embodiment, each support post 50 as well as the antenna reflector 52 contains its own supply of heat transfer fluid 60, which cycles within the cavity available. Thus, heat is transferred down the support post 50 and passes by conduction through wall 54 of the antenna reflector 52. The heat is then transferred evenly to the walls of the antenna reflector 52 where it is dissipated in the manner already described above.
In another alternative arrangement, the invention may be made with a conventional flat or concave antenna reflector 52, with a corresponding sacrifice in the heat dissipation capability of the antenna array.
Any of the above-described arrangements of the invention may be made with still another variation in its construction. Each of the antenna dipole elements 40 is made in the form of a heat pipe having its interior walls and ends lined with a wicking material 58. Also, each dipole element 40 is completely enclosed and contains its own supply of 'heat transfer fluid 60. Fluid 60 cycles within the cavity of each dipole element 40 in a manner already described above for support post 50, taking 011 heat from enclosure 46 and removing it to the outside end of each dipole 40, where it is radiated to space.
'From the foregoing it may be seen that applicant has invented a novel type of microwave power receiving antenna capable of more eificient dissipation of heat than antennas previously known. The outputs from the individual dipole antennas may be connected either in series, in parallel or in series parallel, as desired. Also, diodes 42 may be mounted directly in the cavity of support post 50 to improve heat transfer efflciency, provided they are properly insulated electrically and the appropriate electrical connections are made through the upper end of support post 50. This approach, although more difficult from the standpoint of fabrication, is desirable at high power levels.
Of the various embodiments described in detail above, the embodiment which has support posts which communicate with the antenna reflector and which also has heat pipe conducting dipole elements is, of course, the most eflicient. The simpler embodiments, although they sacrifice efliciency which is highly desirable in the invention, do have the advantage of being cheaper and easier to manufacture.
What is claimed is:
1. A microwave power receiving antenna comprising:
(a) at least one pair of dipole antenna elements,
(b) at least one dipole center enclosure, the inside ends of each pair of said antenna elements being mounted on one said enclosure,
(0) a rectifying circuit in each said enclosure, said rectifying circuit comprising a plurality of diodes,
(d) at least one support post, each said enclosure being supported by one said support post,
(e) an antenna reflector, each said support post being mounted on said antenna reflector.
2. The microwave power receiving antenna of claim 1 wherein each said support post comprises:
(a) a cylindrical section of pipe having two closed ends,
(b) a fluid contained inside said pipe, for absorbing heat at the end of said pipe attached to said center enclosure, and discharging heat to said antenna reflector at the end of said pipe attached to said antenna reflector,
(c) a wick positioned along the inner surfaces of said cylindrical section of said pipe and said pipe ends, for returning said fluid from said end of said pipe attached to said antenna reflector to said end of said pipe attached to said diode enclosure.
3. The microwave power receiving antenna of claim 2 wherein said antenna reflector is a completely enclosed, flat, double-wall enclosure, said enclosure containing:
(a) a fluid for absorbing heat at the point of attach ment of each said support post to said antenna reflector and discharging the absorbed heat to points on the surface of said antenna reflector remote from poinst of attachment of each said support post, so as to distribute the absorbed heat to the whole surface area of said antenna reflector,
(b) a wick positioned on substantially all of the inner surface area of said antenna reflector, for returning said fluid from said remote points to said point of attachment of said support post.
4. The microwave power receiving antenna of claim 3 wherein each said dipole antenna element comprises:
(a) a cylindrical section of tubing having two closed ends,
(b) a fluid contained inside said tubing, for absorbing heat at the end of said tubing attached to said center enclosure and discharging heat at the opposite end of said closed section of tubing,
(c) a wick positioned along the inner surface of said tubing for returning said fluid from said opposite end of said tubing to said end of said tubing mounted on said center enclosure.
5. The microwave power receiving antenna of claim 1 wherein:
(a) each said support post comprises an enclosed,
cylindrical section of pipe,
(b) said antenna reflector comprises an enclosed, flat, double-wall enclosure, the enclosed area of each said support post communicating with the enclosed area of said antenna reflector, to form a total enclosed area including the enclosed areas of each said support post and said antenna reflector,
(c) said total enclosed area containing:
(1) a fluid for absorbing heat from said center enclosure and discharging the absorbed heat to points on the surface of said antenna reflector remote from points of attachment of each said support post, so as to distribute the absorbed heat to the whole surface area of said antenna reflector,
(2) a wick positioned on substantially all of the inner surface areas of said antenna reflector and each said support post, for returning said fluid from said remote points to said end of each said support post attached to said center enclosure.
6. The microwave power receiving antenna of claim 5 wherein each said dipole antenna element comprises:
(a) a cylindrical section of tubing having two closed ends,
(b) a fluid contained inside said tubing, for absorbing heat at the end of said tubing attached to said center enclosure and discharging heat at the opposite end of said closed section of tubing,
(c) a wick positioned along the inner surface of said tubing for returning said fluid from said opposite end of said tubing to said end of said tubing mounted on said center enclosure.
References Cited UNITED STATES PATENTS 3,432,690 3/1969 Blume.
ROBERT K. SCHAEFER, Primary Examiner H. I. HOHAUSER, Assistant Examiner US. Cl. X.R.
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Cited By (128)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678365A (en) * 1969-11-27 1972-07-18 Commissariat Energie Atomique Waveguide device for bringing an element to a high direct-current potential
US3795910A (en) * 1973-03-13 1974-03-05 Nasa Microwave power transmission system wherein level of transmitted power is controlled by reflections from receiver
US3799144A (en) * 1972-03-21 1974-03-26 Us Air Force Solar heat source and receiver system
US3933323A (en) * 1974-03-20 1976-01-20 Raytheon Company Solid state solar to microwave energy converter system and apparatus
US4021816A (en) * 1973-10-18 1977-05-03 E-Systems, Inc. Heat transfer device
US4187506A (en) * 1978-10-16 1980-02-05 Nasa Microwave power transmission beam safety system
US4305555A (en) * 1977-10-20 1981-12-15 Davis Charles E Solar energy system with relay satellite
US4360741A (en) * 1980-10-06 1982-11-23 The Boeing Company Combined antenna-rectifier arrays for power distribution systems
US4408206A (en) * 1979-12-21 1983-10-04 The Boeing Company System for transmitting power from a solar satellite to earth and subsequent conversion to a 60 Hertz three phase signal
US4527619A (en) * 1984-07-30 1985-07-09 The United States Of America As Represented By The Secretary Of The Army Exoatmospheric calibration sphere
US4658171A (en) * 1985-07-15 1987-04-14 Hawley James M Engine for conversion of thermal radiation to direct current
WO1989007549A1 (en) * 1986-02-24 1989-08-24 Ausilio Robert F D System for testing space weapons
US5043739A (en) * 1990-01-30 1991-08-27 The United States Of America As Represented By The United States Department Of Energy High frequency rectenna
US5245352A (en) * 1982-09-30 1993-09-14 The Boeing Company Threshold sensitive low visibility reflecting surface
FR2709603A1 (en) * 1981-03-11 1995-03-10 United Kingdom Government Improvements to devices sensitive to electromagnetic radiation.
US5520356A (en) * 1992-08-14 1996-05-28 Ensley; Donald L. System for propelling and guiding a solid object with a beam of electromagnetic radiation
US5526008A (en) * 1993-06-23 1996-06-11 Ail Systems, Inc. Antenna mirror scannor with constant polarization characteristics
US6227495B1 (en) * 1998-12-10 2001-05-08 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Synchronized autonomous docking system
US6254035B1 (en) * 1998-12-10 2001-07-03 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Synchronized docking system
US20040173257A1 (en) * 2002-11-26 2004-09-09 Rogers James E. Space-based power system
US20060201547A1 (en) * 2002-11-26 2006-09-14 Solaren Corporation Weather management using space-based power system
US20070114334A1 (en) * 2001-07-30 2007-05-24 D Ausilio Robert F Orbit space transportation & recovery system
US20070222542A1 (en) * 2005-07-12 2007-09-27 Joannopoulos John D Wireless non-radiative energy transfer
US20070261229A1 (en) * 2005-12-16 2007-11-15 Kazuyuki Yamaguchi Method and apparatus of producing stator
US20080000232A1 (en) * 2002-11-26 2008-01-03 Rogers James E System for adjusting energy generated by a space-based power system
WO2008118178A1 (en) * 2007-03-27 2008-10-02 Massachusetts Institute Of Technology Wireless energy transfer
US20080300660A1 (en) * 2007-06-01 2008-12-04 Michael Sasha John Power generation for implantable devices
US20100181844A1 (en) * 2005-07-12 2010-07-22 Aristeidis Karalis High efficiency and power transfer in wireless power magnetic resonators
US20100264747A1 (en) * 2008-09-27 2010-10-21 Hall Katherine L Wireless energy transfer converters
US20110180670A1 (en) * 2001-07-30 2011-07-28 D Ausilio Robert F In orbit space transportation & recovery system
US20110187577A1 (en) * 2006-12-15 2011-08-04 Alliant Techsystems Inc. Resolution Radar Using Metamaterials
US8035255B2 (en) 2008-09-27 2011-10-11 Witricity Corporation Wireless energy transfer using planar capacitively loaded conducting loop resonators
US8076801B2 (en) 2008-05-14 2011-12-13 Massachusetts Institute Of Technology Wireless energy transfer, including interference enhancement
US8304935B2 (en) 2008-09-27 2012-11-06 Witricity Corporation Wireless energy transfer using field shaping to reduce loss
US8324759B2 (en) 2008-09-27 2012-12-04 Witricity Corporation Wireless energy transfer using magnetic materials to shape field and reduce loss
US8362651B2 (en) 2008-10-01 2013-01-29 Massachusetts Institute Of Technology Efficient near-field wireless energy transfer using adiabatic system variations
US8400017B2 (en) 2008-09-27 2013-03-19 Witricity Corporation Wireless energy transfer for computer peripheral applications
US8410636B2 (en) 2008-09-27 2013-04-02 Witricity Corporation Low AC resistance conductor designs
US8441154B2 (en) 2008-09-27 2013-05-14 Witricity Corporation Multi-resonator wireless energy transfer for exterior lighting
US8461720B2 (en) 2008-09-27 2013-06-11 Witricity Corporation Wireless energy transfer using conducting surfaces to shape fields and reduce loss
US8461721B2 (en) 2008-09-27 2013-06-11 Witricity Corporation Wireless energy transfer using object positioning for low loss
US8461722B2 (en) 2008-09-27 2013-06-11 Witricity Corporation Wireless energy transfer using conducting surfaces to shape field and improve K
US8466583B2 (en) 2008-09-27 2013-06-18 Witricity Corporation Tunable wireless energy transfer for outdoor lighting applications
US8471410B2 (en) 2008-09-27 2013-06-25 Witricity Corporation Wireless energy transfer over distance using field shaping to improve the coupling factor
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US8482158B2 (en) 2008-09-27 2013-07-09 Witricity Corporation Wireless energy transfer using variable size resonators and system monitoring
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US8569914B2 (en) 2008-09-27 2013-10-29 Witricity Corporation Wireless energy transfer using object positioning for improved k
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US8587153B2 (en) 2008-09-27 2013-11-19 Witricity Corporation Wireless energy transfer using high Q resonators for lighting applications
US8598743B2 (en) 2008-09-27 2013-12-03 Witricity Corporation Resonator arrays for wireless energy transfer
US8624432B2 (en) 2005-10-31 2014-01-07 Ryuji Maeda Power assist using ambient heat
US8629578B2 (en) 2008-09-27 2014-01-14 Witricity Corporation Wireless energy transfer systems
US8643326B2 (en) 2008-09-27 2014-02-04 Witricity Corporation Tunable wireless energy transfer systems
US8667452B2 (en) 2011-11-04 2014-03-04 Witricity Corporation Wireless energy transfer modeling tool
US8669676B2 (en) 2008-09-27 2014-03-11 Witricity Corporation Wireless energy transfer across variable distances using field shaping with magnetic materials to improve the coupling factor
US8686598B2 (en) 2008-09-27 2014-04-01 Witricity Corporation Wireless energy transfer for supplying power and heat to a device
US8692412B2 (en) 2008-09-27 2014-04-08 Witricity Corporation Temperature compensation in a wireless transfer system
US8692410B2 (en) 2008-09-27 2014-04-08 Witricity Corporation Wireless energy transfer with frequency hopping
US8723366B2 (en) 2008-09-27 2014-05-13 Witricity Corporation Wireless energy transfer resonator enclosures
US8729737B2 (en) 2008-09-27 2014-05-20 Witricity Corporation Wireless energy transfer using repeater resonators
US8757552B1 (en) * 2013-02-27 2014-06-24 Rick Martin Dispersed space based laser weapon
US8772973B2 (en) 2008-09-27 2014-07-08 Witricity Corporation Integrated resonator-shield structures
US8847548B2 (en) 2008-09-27 2014-09-30 Witricity Corporation Wireless energy transfer for implantable devices
FR3004860A1 (en) * 2013-04-18 2014-10-24 John Sanjay Swamidas TRANSMISSION OF ELECTRICAL ENERGY WIRELESS
US8901778B2 (en) 2008-09-27 2014-12-02 Witricity Corporation Wireless energy transfer with variable size resonators for implanted medical devices
US8901779B2 (en) 2008-09-27 2014-12-02 Witricity Corporation Wireless energy transfer with resonator arrays for medical applications
US8907531B2 (en) 2008-09-27 2014-12-09 Witricity Corporation Wireless energy transfer with variable size resonators for medical applications
US8912687B2 (en) 2008-09-27 2014-12-16 Witricity Corporation Secure wireless energy transfer for vehicle applications
US8922066B2 (en) 2008-09-27 2014-12-30 Witricity Corporation Wireless energy transfer with multi resonator arrays for vehicle applications
US8928276B2 (en) 2008-09-27 2015-01-06 Witricity Corporation Integrated repeaters for cell phone applications
US8933594B2 (en) 2008-09-27 2015-01-13 Witricity Corporation Wireless energy transfer for vehicles
US8937408B2 (en) 2008-09-27 2015-01-20 Witricity Corporation Wireless energy transfer for medical applications
US8946938B2 (en) 2008-09-27 2015-02-03 Witricity Corporation Safety systems for wireless energy transfer in vehicle applications
US8947186B2 (en) 2008-09-27 2015-02-03 Witricity Corporation Wireless energy transfer resonator thermal management
US8957549B2 (en) 2008-09-27 2015-02-17 Witricity Corporation Tunable wireless energy transfer for in-vehicle applications
US8963488B2 (en) 2008-09-27 2015-02-24 Witricity Corporation Position insensitive wireless charging
US9035499B2 (en) 2008-09-27 2015-05-19 Witricity Corporation Wireless energy transfer for photovoltaic panels
US9038957B1 (en) * 2011-01-12 2015-05-26 The Board Of Trustees Of The University Of Alabama, For And On Behalf Of The University Of Alabama In Huntsville Systems and methods for providing energy to support missions in near earth space
US9065423B2 (en) 2008-09-27 2015-06-23 Witricity Corporation Wireless energy distribution system
US9093853B2 (en) 2008-09-27 2015-07-28 Witricity Corporation Flexible resonator attachment
US9106203B2 (en) 2008-09-27 2015-08-11 Witricity Corporation Secure wireless energy transfer in medical applications
US9105959B2 (en) 2008-09-27 2015-08-11 Witricity Corporation Resonator enclosure
US9160203B2 (en) 2008-09-27 2015-10-13 Witricity Corporation Wireless powered television
US9184595B2 (en) 2008-09-27 2015-11-10 Witricity Corporation Wireless energy transfer in lossy environments
US9246336B2 (en) 2008-09-27 2016-01-26 Witricity Corporation Resonator optimizations for wireless energy transfer
US9287607B2 (en) 2012-07-31 2016-03-15 Witricity Corporation Resonator fine tuning
US9306635B2 (en) 2012-01-26 2016-04-05 Witricity Corporation Wireless energy transfer with reduced fields
US9318922B2 (en) 2008-09-27 2016-04-19 Witricity Corporation Mechanically removable wireless power vehicle seat assembly
US9318257B2 (en) 2011-10-18 2016-04-19 Witricity Corporation Wireless energy transfer for packaging
US9343922B2 (en) 2012-06-27 2016-05-17 Witricity Corporation Wireless energy transfer for rechargeable batteries
US9384885B2 (en) 2011-08-04 2016-07-05 Witricity Corporation Tunable wireless power architectures
US9396867B2 (en) 2008-09-27 2016-07-19 Witricity Corporation Integrated resonator-shield structures
US9404954B2 (en) 2012-10-19 2016-08-02 Witricity Corporation Foreign object detection in wireless energy transfer systems
US9421388B2 (en) 2007-06-01 2016-08-23 Witricity Corporation Power generation for implantable devices
US9442172B2 (en) 2011-09-09 2016-09-13 Witricity Corporation Foreign object detection in wireless energy transfer systems
US9449757B2 (en) 2012-11-16 2016-09-20 Witricity Corporation Systems and methods for wireless power system with improved performance and/or ease of use
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US9952266B2 (en) 2014-02-14 2018-04-24 Witricity Corporation Object detection for wireless energy transfer systems
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US10063110B2 (en) 2015-10-19 2018-08-28 Witricity Corporation Foreign object detection in wireless energy transfer systems
US10063104B2 (en) 2016-02-08 2018-08-28 Witricity Corporation PWM capacitor control
US10075019B2 (en) 2015-11-20 2018-09-11 Witricity Corporation Voltage source isolation in wireless power transfer systems
US10141788B2 (en) 2015-10-22 2018-11-27 Witricity Corporation Dynamic tuning in wireless energy transfer systems
US10248899B2 (en) 2015-10-06 2019-04-02 Witricity Corporation RFID tag and transponder detection in wireless energy transfer systems
US10263473B2 (en) 2016-02-02 2019-04-16 Witricity Corporation Controlling wireless power transfer systems
US10424976B2 (en) 2011-09-12 2019-09-24 Witricity Corporation Reconfigurable control architectures and algorithms for electric vehicle wireless energy transfer systems
US10574091B2 (en) 2014-07-08 2020-02-25 Witricity Corporation Enclosures for high power wireless power transfer systems
US10594015B2 (en) 2017-05-31 2020-03-17 Intel Corporation Dual purpose heat pipe and antenna apparatus
US11031818B2 (en) 2017-06-29 2021-06-08 Witricity Corporation Protection and control of wireless power systems

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432690A (en) * 1966-08-31 1969-03-11 Us Army Thermionic conversion of microwave energy to direct current

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432690A (en) * 1966-08-31 1969-03-11 Us Army Thermionic conversion of microwave energy to direct current

Cited By (243)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678365A (en) * 1969-11-27 1972-07-18 Commissariat Energie Atomique Waveguide device for bringing an element to a high direct-current potential
US3799144A (en) * 1972-03-21 1974-03-26 Us Air Force Solar heat source and receiver system
US3795910A (en) * 1973-03-13 1974-03-05 Nasa Microwave power transmission system wherein level of transmitted power is controlled by reflections from receiver
US4021816A (en) * 1973-10-18 1977-05-03 E-Systems, Inc. Heat transfer device
US3933323A (en) * 1974-03-20 1976-01-20 Raytheon Company Solid state solar to microwave energy converter system and apparatus
US4305555A (en) * 1977-10-20 1981-12-15 Davis Charles E Solar energy system with relay satellite
US4187506A (en) * 1978-10-16 1980-02-05 Nasa Microwave power transmission beam safety system
US4408206A (en) * 1979-12-21 1983-10-04 The Boeing Company System for transmitting power from a solar satellite to earth and subsequent conversion to a 60 Hertz three phase signal
US4360741A (en) * 1980-10-06 1982-11-23 The Boeing Company Combined antenna-rectifier arrays for power distribution systems
FR2709603A1 (en) * 1981-03-11 1995-03-10 United Kingdom Government Improvements to devices sensitive to electromagnetic radiation.
US5245352A (en) * 1982-09-30 1993-09-14 The Boeing Company Threshold sensitive low visibility reflecting surface
US4527619A (en) * 1984-07-30 1985-07-09 The United States Of America As Represented By The Secretary Of The Army Exoatmospheric calibration sphere
US4658171A (en) * 1985-07-15 1987-04-14 Hawley James M Engine for conversion of thermal radiation to direct current
WO1989007549A1 (en) * 1986-02-24 1989-08-24 Ausilio Robert F D System for testing space weapons
US5043739A (en) * 1990-01-30 1991-08-27 The United States Of America As Represented By The United States Department Of Energy High frequency rectenna
US5520356A (en) * 1992-08-14 1996-05-28 Ensley; Donald L. System for propelling and guiding a solid object with a beam of electromagnetic radiation
US5526008A (en) * 1993-06-23 1996-06-11 Ail Systems, Inc. Antenna mirror scannor with constant polarization characteristics
US6227495B1 (en) * 1998-12-10 2001-05-08 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Synchronized autonomous docking system
US6254035B1 (en) * 1998-12-10 2001-07-03 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Synchronized docking system
US7575199B2 (en) * 2001-07-30 2009-08-18 Iostar Corporation Orbit space transportation and recovery system
US20110180670A1 (en) * 2001-07-30 2011-07-28 D Ausilio Robert F In orbit space transportation & recovery system
US7611097B2 (en) * 2001-07-30 2009-11-03 Iostar Corporation In orbit space transportation and recovery system
US20090242704A1 (en) * 2001-07-30 2009-10-01 D Ausilio Robert F In orbit space transportation & recovery system
US20070114334A1 (en) * 2001-07-30 2007-05-24 D Ausilio Robert F Orbit space transportation & recovery system
US20110204159A1 (en) * 2002-11-26 2011-08-25 Solaren Corporation Weather management using space-based power system
US20060185726A1 (en) * 2002-11-26 2006-08-24 Solaren Corporation Space-based power system
US20080000232A1 (en) * 2002-11-26 2008-01-03 Rogers James E System for adjusting energy generated by a space-based power system
US20040173257A1 (en) * 2002-11-26 2004-09-09 Rogers James E. Space-based power system
US6936760B2 (en) 2002-11-26 2005-08-30 Solaren Corporation Space-based power system
US7612284B2 (en) 2002-11-26 2009-11-03 Solaren Corporation Space-based power system
US20060201547A1 (en) * 2002-11-26 2006-09-14 Solaren Corporation Weather management using space-based power system
US8395283B2 (en) 2005-07-12 2013-03-12 Massachusetts Institute Of Technology Wireless energy transfer over a distance at high efficiency
US20100225175A1 (en) * 2005-07-12 2010-09-09 Aristeidis Karalis Wireless power bridge
US7741734B2 (en) 2005-07-12 2010-06-22 Massachusetts Institute Of Technology Wireless non-radiative energy transfer
US8400020B2 (en) 2005-07-12 2013-03-19 Massachusetts Institute Of Technology Wireless energy transfer with high-Q devices at variable distances
US8400019B2 (en) 2005-07-12 2013-03-19 Massachusetts Institute Of Technology Wireless energy transfer with high-Q from more than one source
US11685270B2 (en) 2005-07-12 2023-06-27 Mit Wireless energy transfer
US7825543B2 (en) 2005-07-12 2010-11-02 Massachusetts Institute Of Technology Wireless energy transfer
US20110049998A1 (en) * 2005-07-12 2011-03-03 Aristeidis Karalis Wireless delivery of power to a fixed-geometry power part
US8760007B2 (en) 2005-07-12 2014-06-24 Massachusetts Institute Of Technology Wireless energy transfer with high-Q to more than one device
US8400022B2 (en) 2005-07-12 2013-03-19 Massachusetts Institute Of Technology Wireless energy transfer with high-Q similar resonant frequency resonators
US8760008B2 (en) 2005-07-12 2014-06-24 Massachusetts Institute Of Technology Wireless energy transfer over variable distances between resonators of substantially similar resonant frequencies
US8022576B2 (en) 2005-07-12 2011-09-20 Massachusetts Institute Of Technology Wireless non-radiative energy transfer
US11685271B2 (en) 2005-07-12 2023-06-27 Massachusetts Institute Of Technology Wireless non-radiative energy transfer
US8076800B2 (en) 2005-07-12 2011-12-13 Massachusetts Institute Of Technology Wireless non-radiative energy transfer
US8772972B2 (en) 2005-07-12 2014-07-08 Massachusetts Institute Of Technology Wireless energy transfer across a distance to a moving device
US8084889B2 (en) 2005-07-12 2011-12-27 Massachusetts Institute Of Technology Wireless non-radiative energy transfer
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US20070222542A1 (en) * 2005-07-12 2007-09-27 Joannopoulos John D Wireless non-radiative energy transfer
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US20070261229A1 (en) * 2005-12-16 2007-11-15 Kazuyuki Yamaguchi Method and apparatus of producing stator
US8587474B2 (en) 2006-12-15 2013-11-19 Alliant Techsystems Inc. Resolution radar using metamaterials
US20110187577A1 (en) * 2006-12-15 2011-08-04 Alliant Techsystems Inc. Resolution Radar Using Metamaterials
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US10559980B2 (en) 2008-09-27 2020-02-11 Witricity Corporation Signaling in wireless power systems
US9318922B2 (en) 2008-09-27 2016-04-19 Witricity Corporation Mechanically removable wireless power vehicle seat assembly
US10446317B2 (en) 2008-09-27 2019-10-15 Witricity Corporation Object and motion detection in wireless power transfer systems
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US8304935B2 (en) 2008-09-27 2012-11-06 Witricity Corporation Wireless energy transfer using field shaping to reduce loss
US9369182B2 (en) 2008-09-27 2016-06-14 Witricity Corporation Wireless energy transfer using variable size resonators and system monitoring
US10410789B2 (en) 2008-09-27 2019-09-10 Witricity Corporation Integrated resonator-shield structures
US9396867B2 (en) 2008-09-27 2016-07-19 Witricity Corporation Integrated resonator-shield structures
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US10340745B2 (en) 2008-09-27 2019-07-02 Witricity Corporation Wireless power sources and devices
US10300800B2 (en) 2008-09-27 2019-05-28 Witricity Corporation Shielding in vehicle wireless power systems
US8461722B2 (en) 2008-09-27 2013-06-11 Witricity Corporation Wireless energy transfer using conducting surfaces to shape field and improve K
US8461721B2 (en) 2008-09-27 2013-06-11 Witricity Corporation Wireless energy transfer using object positioning for low loss
US10264352B2 (en) 2008-09-27 2019-04-16 Witricity Corporation Wirelessly powered audio devices
US9496719B2 (en) 2008-09-27 2016-11-15 Witricity Corporation Wireless energy transfer for implantable devices
US8461720B2 (en) 2008-09-27 2013-06-11 Witricity Corporation Wireless energy transfer using conducting surfaces to shape fields and reduce loss
US9515495B2 (en) 2008-09-27 2016-12-06 Witricity Corporation Wireless energy transfer in lossy environments
US9515494B2 (en) 2008-09-27 2016-12-06 Witricity Corporation Wireless power system including impedance matching network
US9544683B2 (en) 2008-09-27 2017-01-10 Witricity Corporation Wirelessly powered audio devices
US9577436B2 (en) 2008-09-27 2017-02-21 Witricity Corporation Wireless energy transfer for implantable devices
US9584189B2 (en) 2008-09-27 2017-02-28 Witricity Corporation Wireless energy transfer using variable size resonators and system monitoring
US10230243B2 (en) 2008-09-27 2019-03-12 Witricity Corporation Flexible resonator attachment
US9596005B2 (en) 2008-09-27 2017-03-14 Witricity Corporation Wireless energy transfer using variable size resonators and systems monitoring
US9601261B2 (en) 2008-09-27 2017-03-21 Witricity Corporation Wireless energy transfer using repeater resonators
US9601270B2 (en) 2008-09-27 2017-03-21 Witricity Corporation Low AC resistance conductor designs
US10218224B2 (en) 2008-09-27 2019-02-26 Witricity Corporation Tunable wireless energy transfer systems
US9601266B2 (en) 2008-09-27 2017-03-21 Witricity Corporation Multiple connected resonators with a single electronic circuit
US9662161B2 (en) 2008-09-27 2017-05-30 Witricity Corporation Wireless energy transfer for medical applications
US10097011B2 (en) 2008-09-27 2018-10-09 Witricity Corporation Wireless energy transfer for photovoltaic panels
US9711991B2 (en) 2008-09-27 2017-07-18 Witricity Corporation Wireless energy transfer converters
US9742204B2 (en) 2008-09-27 2017-08-22 Witricity Corporation Wireless energy transfer in lossy environments
US9744858B2 (en) 2008-09-27 2017-08-29 Witricity Corporation System for wireless energy distribution in a vehicle
US9754718B2 (en) 2008-09-27 2017-09-05 Witricity Corporation Resonator arrays for wireless energy transfer
US8400017B2 (en) 2008-09-27 2013-03-19 Witricity Corporation Wireless energy transfer for computer peripheral applications
US9780605B2 (en) 2008-09-27 2017-10-03 Witricity Corporation Wireless power system with associated impedance matching network
US10084348B2 (en) 2008-09-27 2018-09-25 Witricity Corporation Wireless energy transfer for implantable devices
US9806541B2 (en) 2008-09-27 2017-10-31 Witricity Corporation Flexible resonator attachment
US8410636B2 (en) 2008-09-27 2013-04-02 Witricity Corporation Low AC resistance conductor designs
US8461719B2 (en) 2008-09-27 2013-06-11 Witricity Corporation Wireless energy transfer systems
US8441154B2 (en) 2008-09-27 2013-05-14 Witricity Corporation Multi-resonator wireless energy transfer for exterior lighting
US9843228B2 (en) 2008-09-27 2017-12-12 Witricity Corporation Impedance matching in wireless power systems
US9831682B2 (en) 2008-10-01 2017-11-28 Massachusetts Institute Of Technology Efficient near-field wireless energy transfer using adiabatic system variations
US8362651B2 (en) 2008-10-01 2013-01-29 Massachusetts Institute Of Technology Efficient near-field wireless energy transfer using adiabatic system variations
US8836172B2 (en) 2008-10-01 2014-09-16 Massachusetts Institute Of Technology Efficient near-field wireless energy transfer using adiabatic system variations
US9602168B2 (en) 2010-08-31 2017-03-21 Witricity Corporation Communication in wireless energy transfer systems
US9038957B1 (en) * 2011-01-12 2015-05-26 The Board Of Trustees Of The University Of Alabama, For And On Behalf Of The University Of Alabama In Huntsville Systems and methods for providing energy to support missions in near earth space
US9948145B2 (en) 2011-07-08 2018-04-17 Witricity Corporation Wireless power transfer for a seat-vest-helmet system
US10734842B2 (en) 2011-08-04 2020-08-04 Witricity Corporation Tunable wireless power architectures
US9384885B2 (en) 2011-08-04 2016-07-05 Witricity Corporation Tunable wireless power architectures
US9787141B2 (en) 2011-08-04 2017-10-10 Witricity Corporation Tunable wireless power architectures
US11621585B2 (en) 2011-08-04 2023-04-04 Witricity Corporation Tunable wireless power architectures
US9442172B2 (en) 2011-09-09 2016-09-13 Witricity Corporation Foreign object detection in wireless energy transfer systems
US10778047B2 (en) 2011-09-09 2020-09-15 Witricity Corporation Foreign object detection in wireless energy transfer systems
US10027184B2 (en) 2011-09-09 2018-07-17 Witricity Corporation Foreign object detection in wireless energy transfer systems
US11097618B2 (en) 2011-09-12 2021-08-24 Witricity Corporation Reconfigurable control architectures and algorithms for electric vehicle wireless energy transfer systems
US10424976B2 (en) 2011-09-12 2019-09-24 Witricity Corporation Reconfigurable control architectures and algorithms for electric vehicle wireless energy transfer systems
US9318257B2 (en) 2011-10-18 2016-04-19 Witricity Corporation Wireless energy transfer for packaging
US8875086B2 (en) 2011-11-04 2014-10-28 Witricity Corporation Wireless energy transfer modeling tool
US8667452B2 (en) 2011-11-04 2014-03-04 Witricity Corporation Wireless energy transfer modeling tool
US9306635B2 (en) 2012-01-26 2016-04-05 Witricity Corporation Wireless energy transfer with reduced fields
US10158251B2 (en) 2012-06-27 2018-12-18 Witricity Corporation Wireless energy transfer for rechargeable batteries
US9343922B2 (en) 2012-06-27 2016-05-17 Witricity Corporation Wireless energy transfer for rechargeable batteries
US9287607B2 (en) 2012-07-31 2016-03-15 Witricity Corporation Resonator fine tuning
US9595378B2 (en) 2012-09-19 2017-03-14 Witricity Corporation Resonator enclosure
US9404954B2 (en) 2012-10-19 2016-08-02 Witricity Corporation Foreign object detection in wireless energy transfer systems
US10211681B2 (en) 2012-10-19 2019-02-19 Witricity Corporation Foreign object detection in wireless energy transfer systems
US10686337B2 (en) 2012-10-19 2020-06-16 Witricity Corporation Foreign object detection in wireless energy transfer systems
US9465064B2 (en) 2012-10-19 2016-10-11 Witricity Corporation Foreign object detection in wireless energy transfer systems
US9449757B2 (en) 2012-11-16 2016-09-20 Witricity Corporation Systems and methods for wireless power system with improved performance and/or ease of use
US10186372B2 (en) 2012-11-16 2019-01-22 Witricity Corporation Systems and methods for wireless power system with improved performance and/or ease of use
US9842684B2 (en) 2012-11-16 2017-12-12 Witricity Corporation Systems and methods for wireless power system with improved performance and/or ease of use
US8757552B1 (en) * 2013-02-27 2014-06-24 Rick Martin Dispersed space based laser weapon
US8991766B1 (en) * 2013-02-27 2015-03-31 Rick Martin Dispersed space based laser weapon and power generator
FR3004860A1 (en) * 2013-04-18 2014-10-24 John Sanjay Swamidas TRANSMISSION OF ELECTRICAL ENERGY WIRELESS
US11720133B2 (en) 2013-08-14 2023-08-08 Witricity Corporation Impedance adjustment in wireless power transmission systems and methods
US9857821B2 (en) 2013-08-14 2018-01-02 Witricity Corporation Wireless power transfer frequency adjustment
US11112814B2 (en) 2013-08-14 2021-09-07 Witricity Corporation Impedance adjustment in wireless power transmission systems and methods
US9780573B2 (en) 2014-02-03 2017-10-03 Witricity Corporation Wirelessly charged battery system
US9952266B2 (en) 2014-02-14 2018-04-24 Witricity Corporation Object detection for wireless energy transfer systems
US10186373B2 (en) 2014-04-17 2019-01-22 Witricity Corporation Wireless power transfer systems with shield openings
US9892849B2 (en) 2014-04-17 2018-02-13 Witricity Corporation Wireless power transfer systems with shield openings
US9842687B2 (en) 2014-04-17 2017-12-12 Witricity Corporation Wireless power transfer systems with shaped magnetic components
US9837860B2 (en) 2014-05-05 2017-12-05 Witricity Corporation Wireless power transmission systems for elevators
US10371848B2 (en) 2014-05-07 2019-08-06 Witricity Corporation Foreign object detection in wireless energy transfer systems
US10018744B2 (en) 2014-05-07 2018-07-10 Witricity Corporation Foreign object detection in wireless energy transfer systems
US10923921B2 (en) 2014-06-20 2021-02-16 Witricity Corporation Wireless power transfer systems for surfaces
US9954375B2 (en) 2014-06-20 2018-04-24 Witricity Corporation Wireless power transfer systems for surfaces
US11637458B2 (en) 2014-06-20 2023-04-25 Witricity Corporation Wireless power transfer systems for surfaces
US9842688B2 (en) 2014-07-08 2017-12-12 Witricity Corporation Resonator balancing in wireless power transfer systems
US10574091B2 (en) 2014-07-08 2020-02-25 Witricity Corporation Enclosures for high power wireless power transfer systems
US9843217B2 (en) 2015-01-05 2017-12-12 Witricity Corporation Wireless energy transfer for wearables
US9938024B1 (en) * 2015-08-20 2018-04-10 Board Of Trustees Of The University Of Alabama, For And On Behalf Of The University Of Alabama In Huntsville Object redirection using energetic pulses
US10248899B2 (en) 2015-10-06 2019-04-02 Witricity Corporation RFID tag and transponder detection in wireless energy transfer systems
US9929721B2 (en) 2015-10-14 2018-03-27 Witricity Corporation Phase and amplitude detection in wireless energy transfer systems
US10063110B2 (en) 2015-10-19 2018-08-28 Witricity Corporation Foreign object detection in wireless energy transfer systems
US10651688B2 (en) 2015-10-22 2020-05-12 Witricity Corporation Dynamic tuning in wireless energy transfer systems
US10651689B2 (en) 2015-10-22 2020-05-12 Witricity Corporation Dynamic tuning in wireless energy transfer systems
US10141788B2 (en) 2015-10-22 2018-11-27 Witricity Corporation Dynamic tuning in wireless energy transfer systems
US10075019B2 (en) 2015-11-20 2018-09-11 Witricity Corporation Voltage source isolation in wireless power transfer systems
US10263473B2 (en) 2016-02-02 2019-04-16 Witricity Corporation Controlling wireless power transfer systems
US10637292B2 (en) 2016-02-02 2020-04-28 Witricity Corporation Controlling wireless power transfer systems
US10063104B2 (en) 2016-02-08 2018-08-28 Witricity Corporation PWM capacitor control
US10913368B2 (en) 2016-02-08 2021-02-09 Witricity Corporation PWM capacitor control
US11807115B2 (en) 2016-02-08 2023-11-07 Witricity Corporation PWM capacitor control
US10594015B2 (en) 2017-05-31 2020-03-17 Intel Corporation Dual purpose heat pipe and antenna apparatus
US11588351B2 (en) 2017-06-29 2023-02-21 Witricity Corporation Protection and control of wireless power systems
US11043848B2 (en) 2017-06-29 2021-06-22 Witricity Corporation Protection and control of wireless power systems
US11031818B2 (en) 2017-06-29 2021-06-08 Witricity Corporation Protection and control of wireless power systems
US11637452B2 (en) 2017-06-29 2023-04-25 Witricity Corporation Protection and control of wireless power systems

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