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
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)
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 (xx) | 1981-05-15 |
Family
ID=9188593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH324778A CH623171A5 (xx) | 1977-03-25 | 1978-03-23 |
Country Status (7)
Country | Link |
---|---|
US (1) | US4223316A (xx) |
CH (1) | CH623171A5 (xx) |
DE (1) | DE2812903C2 (xx) |
FR (1) | FR2385233A1 (xx) |
GB (1) | GB1600163A (xx) |
IT (1) | IT1156177B (xx) |
NL (1) | NL7803081A (xx) |
Families Citing this family (14)
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)
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 (xx) * | 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 |
-
1977
- 1977-03-25 FR FR7709000A patent/FR2385233A1/fr active Granted
-
1978
- 1978-03-22 NL NL7803081A patent/NL7803081A/xx not_active Application Discontinuation
- 1978-03-23 US US05/889,564 patent/US4223316A/en not_active Expired - Lifetime
- 1978-03-23 CH CH324778A patent/CH623171A5/fr not_active IP Right Cessation
- 1978-03-23 GB GB11813/78A patent/GB1600163A/en not_active Expired
- 1978-03-23 DE DE2812903A patent/DE2812903C2/de not_active Expired
- 1978-03-24 IT IT48588/78A patent/IT1156177B/it active
Also Published As
Publication number | Publication date |
---|---|
IT1156177B (it) | 1987-01-28 |
IT7848588A0 (it) | 1978-03-24 |
DE2812903A1 (de) | 1978-10-05 |
FR2385233B1 (xx) | 1983-01-21 |
DE2812903C2 (de) | 1986-01-09 |
NL7803081A (nl) | 1978-09-27 |
US4223316A (en) | 1980-09-16 |
FR2385233A1 (fr) | 1978-10-20 |
GB1600163A (en) | 1981-10-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |