CA975443A - Circularly symmetric retrodirective antenna - Google Patents

Circularly symmetric retrodirective antenna

Info

Publication number
CA975443A
CA975443A CA161,991A CA161991A CA975443A CA 975443 A CA975443 A CA 975443A CA 161991 A CA161991 A CA 161991A CA 975443 A CA975443 A CA 975443A
Authority
CA
Canada
Prior art keywords
circularly symmetric
retrodirective antenna
retrodirective
antenna
circularly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA161,991A
Inventor
H. Paris Coleman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
US Department of Navy
Original Assignee
US Department of Navy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by US Department of Navy filed Critical US Department of Navy
Application granted granted Critical
Publication of CA975443A publication Critical patent/CA975443A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/04—Multimode antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
    • H01Q3/40—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with phasing matrix
CA161,991A 1972-01-25 1973-01-25 Circularly symmetric retrodirective antenna Expired CA975443A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22066372A 1972-01-25 1972-01-25

Publications (1)

Publication Number Publication Date
CA975443A true CA975443A (en) 1975-09-30

Family

ID=22824444

Family Applications (1)

Application Number Title Priority Date Filing Date
CA161,991A Expired CA975443A (en) 1972-01-25 1973-01-25 Circularly symmetric retrodirective antenna

Country Status (2)

Country Link
US (1) US3789417A (en)
CA (1) CA975443A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083051A (en) * 1976-07-02 1978-04-04 Rca Corporation Circularly-polarized antenna system using tilted dipoles
US4148031A (en) * 1977-03-16 1979-04-03 Nasa Phase conjugation method and apparatus for an active retrodirective antenna array
FR2455291A1 (en) * 1979-04-26 1980-11-21 Thomson Csf AIRPORT INTERROGATOR SYSTEM
US4980692A (en) * 1989-11-29 1990-12-25 Ail Systems, Inc. Frequency independent circular array
US5064140A (en) * 1990-10-09 1991-11-12 The United States Of America As Represented By The Secretary Of The Army Covert millimeter wave beam projector
US5995917A (en) * 1996-08-08 1999-11-30 Trimble Navigation Limited Optimal ring antenna determination system
US8344943B2 (en) * 2008-07-28 2013-01-01 Physical Domains, LLC Low-profile omnidirectional retrodirective antennas
US9806430B2 (en) * 2011-08-09 2017-10-31 Envisioneering, Inc. Phase-conjugate configuration of high-gain, dual-polarized sector antennas for a repeater
US10777883B2 (en) * 2011-08-09 2020-09-15 Envisioneering, Inc. Phase-conjugate antenna system
CN103794881B (en) * 2014-01-17 2015-11-25 西安空间无线电技术研究所 A kind of polarization Self Matching wave beam inverse approach
US9768503B2 (en) * 2014-06-03 2017-09-19 Huawei Technologies Co., Ltd. System and method for simple 2D phase-mode enabled beam-steering
NO343895B1 (en) * 2017-01-17 2019-07-01 Norbit Its Retrodirective Wireless Device and Method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044063A (en) * 1959-03-19 1962-07-10 Alford Andrew Directional antenna system
US3259902A (en) * 1961-10-04 1966-07-05 Dorne And Margolin Inc Antenna with electrically variable reflector
US3340530A (en) * 1963-12-30 1967-09-05 Lear Siegler Inc Directional antenna array
US3295134A (en) * 1965-11-12 1966-12-27 Sanders Associates Inc Antenna system for radiating directional patterns
US3422436A (en) * 1966-01-17 1969-01-14 Us Navy Omnidirectional retrodirective antenna

Also Published As

Publication number Publication date
US3789417A (en) 1974-01-29

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