IT1156177B - Struttura d'antenna e riflettori e specialmente a riflettori decentrati ed apparecchiature di rivelazione elettromagnetica e di telecomunicazioni spaziali comportanti una tale struttura - Google Patents

Struttura d'antenna e riflettori e specialmente a riflettori decentrati ed apparecchiature di rivelazione elettromagnetica e di telecomunicazioni spaziali comportanti una tale struttura

Info

Publication number
IT1156177B
IT1156177B IT48588/78A IT4858878A IT1156177B IT 1156177 B IT1156177 B IT 1156177B IT 48588/78 A IT48588/78 A IT 48588/78A IT 4858878 A IT4858878 A IT 4858878A IT 1156177 B IT1156177 B IT 1156177B
Authority
IT
Italy
Prior art keywords
reflectors
decentralized
telecommunications equipment
electromagnetic detection
equipment containing
Prior art date
Application number
IT48588/78A
Other languages
English (en)
Other versions
IT7848588A0 (it
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 IT7848588A0 publication Critical patent/IT7848588A0/it
Application granted granted Critical
Publication of IT1156177B publication Critical patent/IT1156177B/it

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
IT48588/78A 1977-03-25 1978-03-24 Struttura d'antenna e riflettori e specialmente a riflettori decentrati ed apparecchiature di rivelazione elettromagnetica e di telecomunicazioni spaziali comportanti una tale struttura IT1156177B (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 (2)

Publication Number Publication Date
IT7848588A0 IT7848588A0 (it) 1978-03-24
IT1156177B true IT1156177B (it) 1987-01-28

Family

ID=9188593

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48588/78A IT1156177B (it) 1977-03-25 1978-03-24 Struttura d'antenna e riflettori e specialmente a riflettori decentrati ed apparecchiature di rivelazione elettromagnetica e di telecomunicazioni spaziali comportanti una tale struttura

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
DE3516811A1 (de) * 1985-05-10 1986-11-13 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Geostationaerer 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
DE2812903C2 (de) 1986-01-09
US4223316A (en) 1980-09-16
FR2385233B1 (it) 1983-01-21
FR2385233A1 (fr) 1978-10-20
DE2812903A1 (de) 1978-10-05
NL7803081A (nl) 1978-09-27
IT7848588A0 (it) 1978-03-24
CH623171A5 (it) 1981-05-15
GB1600163A (en) 1981-10-14

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