DE3483122D1 - Doppelreflektorantenne mit fast ringflaechiger strahldeckung. - Google Patents
Doppelreflektorantenne mit fast ringflaechiger strahldeckung.Info
- Publication number
- DE3483122D1 DE3483122D1 DE8484401409T DE3483122T DE3483122D1 DE 3483122 D1 DE3483122 D1 DE 3483122D1 DE 8484401409 T DE8484401409 T DE 8484401409T DE 3483122 T DE3483122 T DE 3483122T DE 3483122 D1 DE3483122 D1 DE 3483122D1
- Authority
- DE
- Germany
- Prior art keywords
- ring
- reflector antenna
- beam cover
- double reflector
- sided beam
- 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
- H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching
- H01Q3/245—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching in the focal plane of a focussing device
-
- 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
- H01Q19/102—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 wherein the surfaces are of convex toroïdal shape
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8311430A FR2548836B1 (fr) | 1983-07-08 | 1983-07-08 | Antenne a couverture quasi torique a deux reflecteurs |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3483122D1 true DE3483122D1 (de) | 1990-10-11 |
Family
ID=9290661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484401409T Expired - Fee Related DE3483122D1 (de) | 1983-07-08 | 1984-07-03 | Doppelreflektorantenne mit fast ringflaechiger strahldeckung. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4740791A (de) |
EP (1) | EP0131512B1 (de) |
DE (1) | DE3483122D1 (de) |
FR (1) | FR2548836B1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2715511B1 (fr) * | 1994-01-21 | 1996-02-23 | Thomson Csf | Dispositif de compensation des erreurs de pointage causées par des pannes de déphaseurs d'antennes à balayage électronique ou de coefficients d'antennes à formation de faisceaux par le calcul. |
US6094174A (en) * | 1996-03-04 | 2000-07-25 | Andrew Corporation | Broadband omnidirectional microwave parabolic dish--shaped cone antenna |
CA2198969A1 (en) * | 1996-03-04 | 1997-09-04 | Andrew Corporation | Broadband omnidirectional microwave antenna with decreased sky radiation and with a simple means of elevation-plane pattern control |
FR2775347B1 (fr) * | 1998-02-24 | 2000-05-12 | Thomson Csf | Procede de determination de l'erreur de calage de la face rayonnante d'une antenne reseau a balayage electronique |
GB9824800D0 (en) * | 1998-11-12 | 1999-01-06 | Marconi Electronic Syst Ltd | Scanning of electromagnetic beams |
EP1131856A1 (de) * | 1998-11-12 | 2001-09-12 | BAE Systems Electronics Ltd. | Abtasten von elektromagnetischen strahlen |
JP3801831B2 (ja) * | 2000-02-04 | 2006-07-26 | 三菱電機株式会社 | レーダ用アンテナ |
FR2812457B1 (fr) | 2000-07-28 | 2004-05-28 | Thomson Csf | Reflecteur hyperfrequence actif a bi-polarisation, notamment pour antenne a balalyage electronique |
US20110102233A1 (en) * | 2008-09-15 | 2011-05-05 | Trex Enterprises Corp. | Active millimeter-wave imaging system |
IT1404265B1 (it) * | 2011-01-28 | 2013-11-15 | Thales Alenia Space Italia Spa Con Unico Socio | Sistema d'antenna per satelliti in orbita bassa |
US11881625B1 (en) * | 2020-10-06 | 2024-01-23 | Lockheed Martin Corporation | Phased array feed reflector collar and paraconic ground plane |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE710087C (de) * | 1935-06-08 | 1941-09-03 | Telefunken Gmbh | Reflektoranordnung zum Empfang ultrakurzer Wellen aus allen Horizontalrichtungen, insbesondere auf Fahrzeugen |
US2440210A (en) * | 1946-03-26 | 1948-04-20 | Us Sec War | Antenna |
FR1128952A (fr) * | 1955-03-17 | 1957-01-14 | Materiel Telephonique | Antenne pour ondes ultra-courtes |
FR1392013A (fr) * | 1964-01-31 | 1965-03-12 | Nouveaux aériens pour micro-ondes | |
FR1569560A (de) * | 1965-11-26 | 1969-06-06 | ||
FR1571407A (de) * | 1968-04-10 | 1969-06-20 | ||
US3551676A (en) * | 1968-04-19 | 1970-12-29 | Russell W Runnels | Aircraft collision warning system with panoramic viewing reflections |
FR2063967B1 (de) * | 1969-10-15 | 1973-10-19 | Bony Gilbert | |
US3775773A (en) * | 1972-07-17 | 1973-11-27 | Itt | Technique for generating planar beams from a linear doppler line source employing a circular parallel-plate waveguide |
US3848255A (en) * | 1973-03-22 | 1974-11-12 | Teledyne Inc | Steerable radar antenna |
GB1603657A (en) * | 1977-09-13 | 1981-11-25 | Marconi Co Ltd | Systems for the transmission and/or reception of electromagnetic waves |
DE3027093C2 (de) * | 1980-07-17 | 1985-04-25 | Siemens AG, 1000 Berlin und 8000 München | Umpolarisiereinrichtung zur Erzeugung zirkular polarisierter elektromagnetischer Wellen |
US4424500A (en) * | 1980-12-29 | 1984-01-03 | Sperry Corporation | Beam forming network for a multibeam antenna |
-
1983
- 1983-07-08 FR FR8311430A patent/FR2548836B1/fr not_active Expired
-
1984
- 1984-06-26 US US06/624,719 patent/US4740791A/en not_active Expired - Fee Related
- 1984-07-03 EP EP84401409A patent/EP0131512B1/de not_active Expired - Lifetime
- 1984-07-03 DE DE8484401409T patent/DE3483122D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US4740791A (en) | 1988-04-26 |
FR2548836A1 (fr) | 1985-01-11 |
EP0131512A1 (de) | 1985-01-16 |
FR2548836B1 (fr) | 1986-02-21 |
EP0131512B1 (de) | 1990-09-05 |
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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 |