DE69731582D1 - Method and device for reducing retroreflection and radiation below the horizon in a group antenna - Google Patents

Method and device for reducing retroreflection and radiation below the horizon in a group antenna

Info

Publication number
DE69731582D1
DE69731582D1 DE69731582T DE69731582T DE69731582D1 DE 69731582 D1 DE69731582 D1 DE 69731582D1 DE 69731582 T DE69731582 T DE 69731582T DE 69731582 T DE69731582 T DE 69731582T DE 69731582 D1 DE69731582 D1 DE 69731582D1
Authority
DE
Germany
Prior art keywords
retroreflection
horizon
reducing
group antenna
radiation below
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 - Lifetime
Application number
DE69731582T
Other languages
German (de)
Inventor
Henri Chemin
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.)
CIE FINANCIERE ET IND DES AUTO
Original Assignee
CIE FINANCIERE ET IND DES AUTO
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 CIE FINANCIERE ET IND DES AUTO filed Critical CIE FINANCIERE ET IND DES AUTO
Application granted granted Critical
Publication of DE69731582D1 publication Critical patent/DE69731582D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
DE69731582T 1996-06-19 1997-06-16 Method and device for reducing retroreflection and radiation below the horizon in a group antenna Expired - Lifetime DE69731582D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9607603A FR2750257B1 (en) 1996-06-19 1996-06-19 RADIATION METHOD AND DEVICE WITH HIGH DIRECTED FORWARD / REAR RATIO

Publications (1)

Publication Number Publication Date
DE69731582D1 true DE69731582D1 (en) 2004-12-23

Family

ID=9493195

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69731582T Expired - Lifetime DE69731582D1 (en) 1996-06-19 1997-06-16 Method and device for reducing retroreflection and radiation below the horizon in a group antenna

Country Status (3)

Country Link
EP (1) EP0814537B1 (en)
DE (1) DE69731582D1 (en)
FR (1) FR2750257B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196436A (en) * 1978-11-14 1980-04-01 Ford Motor Company Differential backlobe antenna array
US5107273A (en) * 1981-05-11 1992-04-21 The United States Of America As Represented By The Secretary Of The Army Adaptive steerable null antenna processor with null indicator
US4423392A (en) * 1981-11-30 1983-12-27 Wolfson Ronald I Dual-mode stripline antenna feed performing multiple angularly separated beams in space
FR2639492B1 (en) * 1988-11-23 1994-07-29 Autoroutes Cie Financ Indle ISOFREQUENCY RADIO BROADCASTING METHOD AND DEVICE WITH ATTENUATED INTERFERENCE

Also Published As

Publication number Publication date
EP0814537B1 (en) 2004-11-17
EP0814537A1 (en) 1997-12-29
FR2750257A1 (en) 1997-12-26
FR2750257B1 (en) 1998-08-21

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Legal Events

Date Code Title Description
8332 No legal effect for de