FR2709877B1 - Antenne active à balayage électronique en azimut et en élévation, en particulier pour l'imagerie hyperfréquence par satellite. - Google Patents
Antenne active à balayage électronique en azimut et en élévation, en particulier pour l'imagerie hyperfréquence par satellite.Info
- Publication number
- FR2709877B1 FR2709877B1 FR9309617A FR9309617A FR2709877B1 FR 2709877 B1 FR2709877 B1 FR 2709877B1 FR 9309617 A FR9309617 A FR 9309617A FR 9309617 A FR9309617 A FR 9309617A FR 2709877 B1 FR2709877 B1 FR 2709877B1
- Authority
- FR
- France
- Prior art keywords
- microwave
- azimuth
- elevation
- active antenna
- electronic scanning
- 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 - Fee Related
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
- H01Q3/26—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
- H01Q3/2658—Phased-array fed focussing structure
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/007—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device
- H01Q25/008—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device lens fed multibeam arrays
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9309617A FR2709877B1 (fr) | 1993-08-04 | 1993-08-04 | Antenne active à balayage électronique en azimut et en élévation, en particulier pour l'imagerie hyperfréquence par satellite. |
EP19940401772 EP0638956B1 (fr) | 1993-08-04 | 1994-08-02 | Antenne active à balayage électronique en azimut et en élévation, en particulier pour l'imagerie hyperfréquence par satellite |
DE1994630556 DE69430556T2 (de) | 1993-08-04 | 1994-08-02 | Aktive Antenne mit elektronischem Absuchen in Azimut und Elevation, insbesondere für Mikrowellen-Abbildung mittels Satellit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9309617A FR2709877B1 (fr) | 1993-08-04 | 1993-08-04 | Antenne active à balayage électronique en azimut et en élévation, en particulier pour l'imagerie hyperfréquence par satellite. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2709877A1 FR2709877A1 (fr) | 1995-03-17 |
FR2709877B1 true FR2709877B1 (fr) | 1995-10-13 |
Family
ID=9449943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9309617A Expired - Fee Related FR2709877B1 (fr) | 1993-08-04 | 1993-08-04 | Antenne active à balayage électronique en azimut et en élévation, en particulier pour l'imagerie hyperfréquence par satellite. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0638956B1 (fr) |
DE (1) | DE69430556T2 (fr) |
FR (1) | FR2709877B1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2517661B (en) * | 1995-10-24 | 2016-03-30 | Thomson Csf | An anti-jamming antenna |
FR2759204B1 (fr) * | 1997-02-03 | 1999-02-26 | Alsthom Cge Alcatel | Unite de formation de faisceau de canaux multiplexes |
US6236375B1 (en) * | 1999-01-15 | 2001-05-22 | Trw Inc. | Compact offset gregorian antenna system for providing adjacent, high gain, antenna beams |
DE10041996A1 (de) * | 2000-08-10 | 2002-03-07 | Frank E Woetzel | Anordnung zur Beeinflussung und Steuerung elektromagnetischer Wechselfelder und/oder Antennen und Antennendiagrammen |
FR2868847B1 (fr) | 2004-04-13 | 2008-12-26 | Eads Astrium Sas Soc Par Actio | Dispositif de detection comprenant un miroir parabolique, et utilisation d'un tel dispositif a bord d'un engin de survol |
GB2546309B (en) * | 2016-01-15 | 2020-03-18 | Cambridge Broadband Networks Ltd | An Antenna |
CN107645069B (zh) * | 2017-10-09 | 2024-03-15 | 成都瑞德星无线技术有限公司 | 一种近场有源镜像聚焦天线 |
US11831346B2 (en) | 2021-03-29 | 2023-11-28 | Pathfinder Digital, LLC | Adaptable, reconfigurable mobile very small aperture (VSAT) satellite communication terminal using an electronically scanned array (ESA) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2685551B1 (fr) * | 1991-12-23 | 1994-01-28 | Alcatel Espace | Antenne active "offset" a double reflecteurs. |
-
1993
- 1993-08-04 FR FR9309617A patent/FR2709877B1/fr not_active Expired - Fee Related
-
1994
- 1994-08-02 DE DE1994630556 patent/DE69430556T2/de not_active Expired - Fee Related
- 1994-08-02 EP EP19940401772 patent/EP0638956B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0638956A1 (fr) | 1995-02-15 |
DE69430556T2 (de) | 2003-01-16 |
FR2709877A1 (fr) | 1995-03-17 |
DE69430556D1 (de) | 2002-06-13 |
EP0638956B1 (fr) | 2002-05-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |