DE69734949D1 - Antenne mit Einzel- oder Doppelreflektor, geformten Strahlungskeulen und linearer Polarisation - Google Patents
Antenne mit Einzel- oder Doppelreflektor, geformten Strahlungskeulen und linearer PolarisationInfo
- Publication number
- DE69734949D1 DE69734949D1 DE69734949T DE69734949T DE69734949D1 DE 69734949 D1 DE69734949 D1 DE 69734949D1 DE 69734949 T DE69734949 T DE 69734949T DE 69734949 T DE69734949 T DE 69734949T DE 69734949 D1 DE69734949 D1 DE 69734949D1
- Authority
- DE
- Germany
- Prior art keywords
- antenna
- linear polarization
- shaped beams
- double reflector
- reflector
- 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
Links
- 230000010287 polarization Effects 0.000 title 1
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
- H01Q19/12—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 concave
- H01Q19/17—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 concave the primary radiating source comprising two or more radiating elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
- H01Q15/242—Polarisation converters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q21/245—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction provided with means for varying the polarisation
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT96RM000164A IT1284301B1 (it) | 1996-03-13 | 1996-03-13 | Antenna a singolo o a doppio riflettore, a fasci sagomati, a polarizzazione lineare. |
ITRM960164 | 1996-03-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69734949D1 true DE69734949D1 (de) | 2006-02-02 |
DE69734949T2 DE69734949T2 (de) | 2006-09-21 |
Family
ID=11403987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69734949T Expired - Lifetime DE69734949T2 (de) | 1996-03-13 | 1997-03-11 | Antenne mit Einzel- oder Doppelreflektor, geformten Strahlungskeulen und linearer Polarisation |
Country Status (5)
Country | Link |
---|---|
US (1) | US5990842A (de) |
EP (1) | EP0795928B1 (de) |
CA (1) | CA2199428C (de) |
DE (1) | DE69734949T2 (de) |
IT (1) | IT1284301B1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6434384B1 (en) * | 1997-10-17 | 2002-08-13 | The Boeing Company | Non-uniform multi-beam satellite communications system and method |
US6215452B1 (en) * | 1999-01-15 | 2001-04-10 | Trw Inc. | Compact front-fed dual reflector antenna system for providing adjacent, high gain antenna beams |
US6424310B1 (en) * | 1999-01-15 | 2002-07-23 | Trw Inc. | Compact folded optics antenna system for providing adjacent, high gain antenna beams |
US6211835B1 (en) * | 1999-01-15 | 2001-04-03 | Trw Inc. | Compact side-fed dual reflector antenna system for providing adjacent, high gain antenna beams |
DE19917202A1 (de) * | 1999-04-16 | 2000-10-19 | Bosch Gmbh Robert | Multibeam-Phasenarray-Antenneneinrichtung |
FR2806214B1 (fr) * | 2000-03-10 | 2003-08-01 | Agence Spatiale Europeenne | Antenne reflectrice comportant une pluralite de panneaux |
JP2003332838A (ja) * | 2002-05-17 | 2003-11-21 | Mitsubishi Electric Corp | マルチビームアンテナ装置 |
GB0220434D0 (en) * | 2002-09-03 | 2004-03-17 | Qinetiq Ltd | Detection device |
US7236681B2 (en) * | 2003-09-25 | 2007-06-26 | Prodelin Corporation | Feed assembly for multi-beam antenna with non-circular reflector, and such an assembly that is field-switchable between linear and circular polarization modes |
FR2888674B1 (fr) * | 2005-07-13 | 2009-10-23 | Alcatel Sa | Antenne reseau a reflecteur(s) conforme(s), a forte reconfigurabilite en orbite |
IL232866B (en) | 2014-05-29 | 2020-08-31 | Elta Systems Ltd | Polarization rotator |
CN110718762B (zh) * | 2019-09-17 | 2020-11-03 | 东南大学 | 一种由平面波垂直入射激励的单波束1比特超表面 |
RU2766853C1 (ru) * | 2020-12-23 | 2022-03-16 | Бюджетное учреждение высшего образования "Ханты-Мансийского автономного окр.-Югры "Сургутский государственный университет" | Радиолокационный отражатель с электрически управляемыми поляризационными свойствами |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3864688A (en) * | 1972-03-24 | 1975-02-04 | Andrew Corp | Cross-polarized parabolic antenna |
US4010471A (en) * | 1975-06-20 | 1977-03-01 | The United States Of America As Represented By The Secretary Of The Army | Polarization rotator for phase array antennas |
US4425567A (en) * | 1981-09-28 | 1984-01-10 | The Bendix Corporation | Beam forming network for circular array antennas |
FR2523375A1 (fr) * | 1982-03-10 | 1983-09-16 | Europ Agence Spatiale | Dispositif de compensation des distorsions des reflecteurs pour antennes de reception et/ou transmission d'ondes a faisceaux multiples |
FR2524720A2 (fr) * | 1982-04-02 | 1983-10-07 | Thomson Csf | Antenne cassegrain inversee pour radar a fonction multiple |
US4604624A (en) * | 1982-11-16 | 1986-08-05 | At&T Bell Laboratories | Phased array antenna employing linear scan for wide-angle arc coverage with polarization matching |
CA1226934A (en) * | 1986-09-26 | 1987-09-15 | Henry Downs | Reconfigurable beam-forming network that provides in- phase power to each region |
CA1304155C (en) * | 1987-10-02 | 1992-06-23 | Keith C. Smith | Lens/polarizer/radome |
US4972199A (en) * | 1989-03-30 | 1990-11-20 | Hughes Aircraft Company | Low cross-polarization radiator of circularly polarized radiation |
US5086301A (en) * | 1990-01-10 | 1992-02-04 | Intelsat | Polarization converter application for accessing linearly polarized satellites with single- or dual-circularly polarized earth station antennas |
US5206658A (en) * | 1990-10-31 | 1993-04-27 | Rockwell International Corporation | Multiple beam antenna system |
FR2678111B1 (fr) * | 1991-06-19 | 1993-10-22 | Aerospatiale Ste Nationale Indle | Reflecteur d'antenne reconfigurable en service. |
GB2264006B (en) * | 1992-02-01 | 1995-09-27 | British Aerospace Space And Co | A reflector antenna assembly for dual linear polarisation |
US5365245A (en) * | 1993-05-06 | 1994-11-15 | The United States Of America As Represented By The Secretary Of The Navy | Hybrid orthogonal transverse electromagnetic fed reflector antenna |
US5463358A (en) * | 1993-09-21 | 1995-10-31 | Dunn; Daniel S. | Multiple channel microwave rotary polarizer |
CA2149492C (en) * | 1995-05-16 | 2005-07-26 | Anthony Raab | Deployable double-membrane surface antenna |
-
1996
- 1996-03-13 IT IT96RM000164A patent/IT1284301B1/it active IP Right Grant
-
1997
- 1997-03-07 CA CA002199428A patent/CA2199428C/en not_active Expired - Fee Related
- 1997-03-10 US US08/815,666 patent/US5990842A/en not_active Expired - Lifetime
- 1997-03-11 DE DE69734949T patent/DE69734949T2/de not_active Expired - Lifetime
- 1997-03-11 EP EP97830109A patent/EP0795928B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2199428C (en) | 2004-02-10 |
EP0795928A3 (de) | 1998-07-22 |
EP0795928A2 (de) | 1997-09-17 |
IT1284301B1 (it) | 1998-05-18 |
ITRM960164A0 (de) | 1996-03-13 |
DE69734949T2 (de) | 2006-09-21 |
US5990842A (en) | 1999-11-23 |
CA2199428A1 (en) | 1997-09-13 |
ITRM960164A1 (it) | 1997-09-13 |
EP0795928B1 (de) | 2005-12-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |