DE69430556D1 - Active antenna with electronic scanning in azimuth and elevation, especially for microwave imaging using satellite - Google Patents

Active antenna with electronic scanning in azimuth and elevation, especially for microwave imaging using satellite

Info

Publication number
DE69430556D1
DE69430556D1 DE69430556T DE69430556T DE69430556D1 DE 69430556 D1 DE69430556 D1 DE 69430556D1 DE 69430556 T DE69430556 T DE 69430556T DE 69430556 T DE69430556 T DE 69430556T DE 69430556 D1 DE69430556 D1 DE 69430556D1
Authority
DE
Germany
Prior art keywords
azimuth
satellite
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
Application number
DE69430556T
Other languages
German (de)
Other versions
DE69430556T2 (en
Inventor
Regis Lenormand
Charles Villemur
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.)
Alcatel Lucent SAS
Original Assignee
Alcatel SA
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 Alcatel SA filed Critical Alcatel SA
Publication of DE69430556D1 publication Critical patent/DE69430556D1/en
Application granted granted Critical
Publication of DE69430556T2 publication Critical patent/DE69430556T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01Q3/26—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
DE1994630556 1993-08-04 1994-08-02 Active antenna with electronic scanning in azimuth and elevation, especially for microwave imaging using satellite Expired - Fee Related DE69430556T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9309617A FR2709877B1 (en) 1993-08-04 1993-08-04 Active antenna with electronic scanning in azimuth and elevation, in particular for microwave microwave imagery.

Publications (2)

Publication Number Publication Date
DE69430556D1 true DE69430556D1 (en) 2002-06-13
DE69430556T2 DE69430556T2 (en) 2003-01-16

Family

ID=9449943

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1994630556 Expired - Fee Related DE69430556T2 (en) 1993-08-04 1994-08-02 Active antenna with electronic scanning in azimuth and elevation, especially for microwave imaging using satellite

Country Status (3)

Country Link
EP (1) EP0638956B1 (en)
DE (1) DE69430556T2 (en)
FR (1) FR2709877B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2517661B (en) * 1995-10-24 2016-03-30 Thomson Csf An anti-jamming antenna
FR2759204B1 (en) * 1997-02-03 1999-02-26 Alsthom Cge Alcatel MULTIPLEX CHANNEL BEAM TRAINING UNIT
US6236375B1 (en) * 1999-01-15 2001-05-22 Trw Inc. Compact offset gregorian antenna system for providing adjacent, high gain, antenna beams
DE10041996A1 (en) * 2000-08-10 2002-03-07 Frank E Woetzel Arrangement for influencing and controlling alternating electromagnetic fields and / or antennas and antenna diagrams
FR2868847B1 (en) * 2004-04-13 2008-12-26 Eads Astrium Sas Soc Par Actio DETECTION DEVICE COMPRISING A PARABOLIC MIRROR, AND USE OF SUCH A DEVICE ABOARD AN OVERVIEW MACHINE
GB2546309B (en) * 2016-01-15 2020-03-18 Cambridge Broadband Networks Ltd An Antenna
CN107645069B (en) * 2017-10-09 2024-03-15 成都瑞德星无线技术有限公司 Near field active mirror image focusing antenna
WO2022260741A2 (en) 2021-03-29 2022-12-15 Pathfinder Digital, LLC Adaptable, reconfigurable mobile very small aperture (vsat) satellite communication terminal using an electronically scanned array (esa)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685551B1 (en) * 1991-12-23 1994-01-28 Alcatel Espace ACTIVE OFFSET ANTENNA WITH DOUBLE REFLECTORS.

Also Published As

Publication number Publication date
DE69430556T2 (en) 2003-01-16
EP0638956B1 (en) 2002-05-08
FR2709877B1 (en) 1995-10-13
FR2709877A1 (en) 1995-03-17
EP0638956A1 (en) 1995-02-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee