CH623171A5 - - Google Patents

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Publication number
CH623171A5
CH623171A5 CH324778A CH324778A CH623171A5 CH 623171 A5 CH623171 A5 CH 623171A5 CH 324778 A CH324778 A CH 324778A CH 324778 A CH324778 A CH 324778A CH 623171 A5 CH623171 A5 CH 623171A5
Authority
CH
Switzerland
Prior art keywords
reflector
antenna structure
structure according
auxiliary
primary source
Prior art date
Application number
CH324778A
Other languages
English (en)
French (fr)
Inventor
Serge Drabowitch
Original Assignee
Thomson Csf
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 Thomson Csf filed Critical Thomson Csf
Publication of CH623171A5 publication Critical patent/CH623171A5/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/18—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces
    • H01Q19/19—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
    • H01Q19/192—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface with dual offset reflectors

Landscapes

  • Aerials With Secondary Devices (AREA)
CH324778A 1977-03-25 1978-03-23 CH623171A5 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7709000A FR2385233A1 (fr) 1977-03-25 1977-03-25 Structure d'antenne a reflecteurs et notamment a reflecteurs excentres, et equipements de detection electromagnetique et de telecommunications spatiales comportant une telle structure

Publications (1)

Publication Number Publication Date
CH623171A5 true CH623171A5 (it) 1981-05-15

Family

ID=9188593

Family Applications (1)

Application Number Title Priority Date Filing Date
CH324778A CH623171A5 (it) 1977-03-25 1978-03-23

Country Status (7)

Country Link
US (1) US4223316A (it)
CH (1) CH623171A5 (it)
DE (1) DE2812903C2 (it)
FR (1) FR2385233A1 (it)
GB (1) GB1600163A (it)
IT (1) IT1156177B (it)
NL (1) NL7803081A (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439773A (en) * 1982-01-11 1984-03-27 Bell Telephone Laboratories, Incorporated Compact scanning beam antenna feed arrangement
US4516130A (en) * 1982-03-09 1985-05-07 At&T Bell Laboratories Antenna arrangements using focal plane filtering for reducing sidelobes
DE3209513A1 (de) * 1982-03-16 1984-02-09 ANT Nachrichtentechnik GmbH, 7150 Backnang Exzentrische parabolantenne mit geringer kreuzpolarisation
US4755826A (en) * 1983-01-10 1988-07-05 The United States Of America As Represented By The Secretary Of The Navy Bicollimated offset Gregorian dual reflector antenna system
US4574287A (en) * 1983-03-04 1986-03-04 The United States Of America As Represented By The Secretary Of The Navy Fixed aperture, rotating feed, beam scanning antenna system
FR2577074B1 (fr) * 1985-02-05 1987-06-26 Europ Agence Spatiale Antenne multireflecteur a faisceau conforme
DE3516811C2 (de) * 1985-05-10 1987-03-12 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Geostationärer Nachrichtensatellit
US4791430A (en) * 1986-06-12 1988-12-13 Agtronics Pty. Limited Ultrasonic antenna
US5546097A (en) * 1992-12-22 1996-08-13 Hughes Aircraft Company Shaped dual reflector antenna system for generating a plurality of beam coverages
US6233479B1 (en) * 1998-09-15 2001-05-15 The Regents Of The University Of California Microwave hematoma detector
FR2812457B1 (fr) 2000-07-28 2004-05-28 Thomson Csf Reflecteur hyperfrequence actif a bi-polarisation, notamment pour antenne a balalyage electronique
JP2003332838A (ja) * 2002-05-17 2003-11-21 Mitsubishi Electric Corp マルチビームアンテナ装置
US7183990B2 (en) * 2004-02-04 2007-02-27 Ems Technologies Canada Ltd Aperture illumination control membrane
US8786508B1 (en) * 2012-09-27 2014-07-22 L-3 Communications Corp. Tri-band feed horn

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2975419A (en) * 1959-10-13 1961-03-14 Newell H Brown Microwave antenna reflector system for scanning by displacement of focal image
US3029431A (en) * 1960-06-30 1962-04-10 Sperry Rand Corp Broadband selective polarization antenna system
FR1368820A (fr) * 1963-06-14 1964-08-07 Csf Aérien de hautes performances
US3562753A (en) * 1968-02-23 1971-02-09 Hitachi Ltd Casseyrain antenna system with rotatable main reflector for scanning
JPS5331345B2 (it) * 1972-09-22 1978-09-01
US3995275A (en) * 1973-07-12 1976-11-30 Mitsubishi Denki Kabushiki Kaisha Reflector antenna having main and subreflector of diverse curvature
US4062018A (en) * 1973-12-21 1977-12-06 Kokusai Denshin Denwa Kabushiki Kaisha Scanning antenna with moveable beam waveguide feed and defocusing adjustment
DE2505375A1 (de) * 1975-02-08 1976-08-19 Licentia Gmbh Antennensystem bestehend aus einem parabolspiegel und einem erreger
US3936837A (en) * 1975-02-25 1976-02-03 The United States Of America As Represented By The Secretary Of The Navy Corrugated horn fed offset paraboloidal reflector
FR2304192A1 (fr) * 1975-03-14 1976-10-08 Thomson Csf Antenne a reduction selective de gain

Also Published As

Publication number Publication date
NL7803081A (nl) 1978-09-27
FR2385233B1 (it) 1983-01-21
US4223316A (en) 1980-09-16
DE2812903A1 (de) 1978-10-05
DE2812903C2 (de) 1986-01-09
IT1156177B (it) 1987-01-28
FR2385233A1 (fr) 1978-10-20
IT7848588A0 (it) 1978-03-24
GB1600163A (en) 1981-10-14

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Legal Events

Date Code Title Description
PL Patent ceased