CA971643A - Multiple beam retrodirective array with circular symmetry - Google Patents

Multiple beam retrodirective array with circular symmetry

Info

Publication number
CA971643A
CA971643A CA167,200A CA167200A CA971643A CA 971643 A CA971643 A CA 971643A CA 167200 A CA167200 A CA 167200A CA 971643 A CA971643 A CA 971643A
Authority
CA
Canada
Prior art keywords
multiple beam
circular symmetry
retrodirective array
retrodirective
array
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
CA167,200A
Other versions
CA167200S (en
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 CA971643A publication Critical patent/CA971643A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01Q3/44—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 electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
    • H01Q3/46—Active lenses or reflecting arrays
    • 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
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • H01Q3/2647—Retrodirective arrays
    • 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
CA167,200A 1972-05-25 1973-03-27 Multiple beam retrodirective array with circular symmetry Expired CA971643A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25685672A 1972-05-25 1972-05-25

Publications (1)

Publication Number Publication Date
CA971643A true CA971643A (en) 1975-07-22

Family

ID=22973876

Family Applications (1)

Application Number Title Priority Date Filing Date
CA167,200A Expired CA971643A (en) 1972-05-25 1973-03-27 Multiple beam retrodirective array with circular symmetry

Country Status (2)

Country Link
US (1) US3736592A (en)
CA (1) CA971643A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6664938B2 (en) 2002-03-01 2003-12-16 Ems Technologies Canada, Ltd. Pentagonal helical antenna array

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997900A (en) * 1975-03-12 1976-12-14 The Singer Company Four beam printed antenna for Doopler application
US4032922A (en) * 1976-01-09 1977-06-28 The United States Of America As Represented By The Secretary Of The Navy Multibeam adaptive array
FR2371226A1 (en) * 1976-11-17 1978-06-16 Olivier Jean APPLICATOR FOR SUBMITTING A MATERIAL TO WAVES
FR2455291A1 (en) * 1979-04-26 1980-11-21 Thomson Csf AIRPORT INTERROGATOR SYSTEM
US4338605A (en) * 1980-02-28 1982-07-06 Westinghouse Electric Corp. Antenna array with adaptive sidelobe cancellation
US4356461A (en) * 1981-01-14 1982-10-26 The Bendix Corporation Practical implementation of large Butler matrices
US4721960A (en) * 1986-07-15 1988-01-26 Canadian Marconi Company Beam forming antenna 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
US6791507B2 (en) * 2003-02-13 2004-09-14 Telefonaktiebolaget Lm Ericsson (Publ) Feed network for simultaneous generation of narrow and wide beams with a rotational-symmetric antenna
US7567213B2 (en) * 2006-05-02 2009-07-28 Accton Technology Corporation Array structure for the application to wireless switch of WLAN and WMAN
US8344943B2 (en) * 2008-07-28 2013-01-01 Physical Domains, LLC Low-profile omnidirectional retrodirective antennas
IL221162A (en) 2012-07-29 2017-06-29 Elta Systems Ltd Transponder device
EP2706613B1 (en) * 2012-09-11 2017-11-22 Alcatel Lucent Multi-band antenna with variable electrical tilt
EP2923412B1 (en) * 2012-11-26 2019-07-03 Agence Spatiale Européenne Beam-forming network for an array antenna and array antenna comprising the same
IL223415A (en) 2012-12-04 2017-06-29 Elta Systems Ltd Rotatable transponder system
US11855680B2 (en) * 2013-09-06 2023-12-26 John Howard Random, sequential, or simultaneous multi-beam circular antenna array and beam forming networks with up to 360° coverage
US10734733B2 (en) * 2013-09-06 2020-08-04 John Howard Random, sequential, or simultaneous multi-beam circular antenna array and beam forming networks with up to 360° coverage
FR3098024B1 (en) * 2019-06-27 2022-06-03 Thales Sa Reduced complexity two-dimensional multibeam analog trainer for reconfigurable active array antennas

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295134A (en) * 1965-11-12 1966-12-27 Sanders Associates Inc Antenna system for radiating directional patterns

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6664938B2 (en) 2002-03-01 2003-12-16 Ems Technologies Canada, Ltd. Pentagonal helical antenna array

Also Published As

Publication number Publication date
US3736592A (en) 1973-05-29

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