EP0147325A3 - Antenna with two orthogonal parabolic cylindrical reflectors and process for making it - Google Patents
Antenna with two orthogonal parabolic cylindrical reflectors and process for making it Download PDFInfo
- Publication number
- EP0147325A3 EP0147325A3 EP84402703A EP84402703A EP0147325A3 EP 0147325 A3 EP0147325 A3 EP 0147325A3 EP 84402703 A EP84402703 A EP 84402703A EP 84402703 A EP84402703 A EP 84402703A EP 0147325 A3 EP0147325 A3 EP 0147325A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- making
- parabolic cylindrical
- cylindrical reflectors
- orthogonal parabolic
- 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.)
- Granted
Links
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
- H01Q19/20—Producing pencil beam by two cylindrical focusing devices with their focal lines orthogonally disposed
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8321098A FR2557737B1 (en) | 1983-12-30 | 1983-12-30 | ANTENNA WITH TWO CROSS-CYLINDRO-PARABOLIC REFLECTORS AND MANUFACTURING METHOD THEREOF |
FR8321098 | 1983-12-30 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0147325A2 EP0147325A2 (en) | 1985-07-03 |
EP0147325A3 true EP0147325A3 (en) | 1985-08-14 |
EP0147325B1 EP0147325B1 (en) | 1989-05-10 |
Family
ID=9295757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84402703A Expired EP0147325B1 (en) | 1983-12-30 | 1984-12-21 | Antenna with two orthogonal parabolic cylindrical reflectors and process for making it |
Country Status (4)
Country | Link |
---|---|
US (1) | US4665405A (en) |
EP (1) | EP0147325B1 (en) |
DE (1) | DE3478173D1 (en) |
FR (1) | FR2557737B1 (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5034750A (en) * | 1983-10-31 | 1991-07-23 | Raytheon Company | Pulse radar and components therefor |
DE3515861C1 (en) * | 1985-05-03 | 1994-03-17 | Diehl Gmbh & Co | Sensor unit for target seeking sub-munition missile - has parabolic reflector insert in nose with polarising deflector and filter to recover radiated beam |
GB2277408B (en) * | 1989-05-16 | 1995-03-08 | Plessey Co Plc | Radar |
CA2105745C (en) * | 1992-09-21 | 1997-12-16 | Parthasarathy Ramanujam | Identical surface shaped reflectors in semi-tandem arrangement |
FR2709380B1 (en) * | 1993-08-23 | 1995-09-22 | Alcatel Espace | Bi-beam antenna with electronic scanning. |
FR2715511B1 (en) * | 1994-01-21 | 1996-02-23 | Thomson Csf | Device for compensating for pointing errors caused by breakdowns of phase shifters of electronically scanned antennas or of coefficients of beam-forming antennas by calculation. |
US5847681A (en) * | 1996-10-30 | 1998-12-08 | Hughes Electronics Corporation | Communication and tracking antenna systems for satellites |
FR2775347B1 (en) * | 1998-02-24 | 2000-05-12 | Thomson Csf | METHOD FOR DETERMINING THE SETTING ERROR OF THE RADIANT FACE OF AN ELECTRONICALLY SCANNED NETWORK ANTENNA |
US6150991A (en) * | 1998-11-12 | 2000-11-21 | Raytheon Company | Electronically scanned cassegrain antenna with full aperture secondary/radome |
FR2812457B1 (en) | 2000-07-28 | 2004-05-28 | Thomson Csf | ACTIVE BI-POLARIZATION MICROWAVE REFLECTOR, ESPECIALLY FOR AN ELECTRONICALLY BALANCED ANTENNA |
US6577276B2 (en) | 2000-11-16 | 2003-06-10 | Arc Wireless Solutions, Inc. | Low cross-polarization microstrip patch radiator |
US8100837B1 (en) | 2000-12-21 | 2012-01-24 | Abbott Cardiovascular Systems, Inc. | Superelastic guidewire with locally altered properties |
DE60120909T2 (en) | 2001-03-22 | 2007-02-08 | Alcatel | Double reflector antenna with deflector |
JP2002339859A (en) * | 2001-05-17 | 2002-11-27 | National Aerospace Laboratory Of Japan | Electromagnetic wave focusing device |
US6994546B2 (en) * | 2002-12-18 | 2006-02-07 | Ultradent Products, Inc. | Light curing device with detachable power supply |
US20070205724A1 (en) * | 2006-03-03 | 2007-09-06 | Schaefer Raymond B | Advanced surface discharge lamp systems |
US7593289B2 (en) * | 2006-04-17 | 2009-09-22 | Phoenix Science & Technology, Inc. | Reflectors and reflector light and sound source systems |
RU2567127C1 (en) * | 2014-09-10 | 2015-11-10 | Закрытое акционерное общество "Меркурий" | Cassegrain antenna |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB633061A (en) * | 1946-01-07 | 1949-12-12 | Robert Bruce Robertson Sheasby | Improvements in or relating to wireless aerial arrangements |
US2597391A (en) * | 1946-04-30 | 1952-05-20 | Us Sec War | Antenna |
US3820116A (en) * | 1972-04-24 | 1974-06-25 | Ericsson Telefon Ab L M | Double reflector antenna with polarization rotating main reflector |
FR2321781A1 (en) * | 1975-08-20 | 1977-03-18 | Vokurka Vaclav | ANTENNAS |
FR2451114A1 (en) * | 1979-03-09 | 1980-10-03 | Thomson Csf | PARALLEL PLAN ANTENNA WITH POLARIZATION ROTATION |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4574287A (en) * | 1983-03-04 | 1986-03-04 | The United States Of America As Represented By The Secretary Of The Navy | Fixed aperture, rotating feed, beam scanning antenna system |
-
1983
- 1983-12-30 FR FR8321098A patent/FR2557737B1/en not_active Expired
-
1984
- 1984-12-21 EP EP84402703A patent/EP0147325B1/en not_active Expired
- 1984-12-21 DE DE8484402703T patent/DE3478173D1/en not_active Expired
- 1984-12-21 US US06/684,462 patent/US4665405A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB633061A (en) * | 1946-01-07 | 1949-12-12 | Robert Bruce Robertson Sheasby | Improvements in or relating to wireless aerial arrangements |
US2597391A (en) * | 1946-04-30 | 1952-05-20 | Us Sec War | Antenna |
US3820116A (en) * | 1972-04-24 | 1974-06-25 | Ericsson Telefon Ab L M | Double reflector antenna with polarization rotating main reflector |
FR2321781A1 (en) * | 1975-08-20 | 1977-03-18 | Vokurka Vaclav | ANTENNAS |
FR2451114A1 (en) * | 1979-03-09 | 1980-10-03 | Thomson Csf | PARALLEL PLAN ANTENNA WITH POLARIZATION ROTATION |
Also Published As
Publication number | Publication date |
---|---|
FR2557737A1 (en) | 1985-07-05 |
DE3478173D1 (en) | 1989-06-15 |
FR2557737B1 (en) | 1987-12-18 |
US4665405A (en) | 1987-05-12 |
EP0147325A2 (en) | 1985-07-03 |
EP0147325B1 (en) | 1989-05-10 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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PUAL | Search report despatched |
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17P | Request for examination filed |
Effective date: 19860203 |
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Owner name: THOMSON-CSF |
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