ES2028922T3 - Dispositivo de antena direccional de microondas de dos espejos. - Google Patents
Dispositivo de antena direccional de microondas de dos espejos.Info
- Publication number
- ES2028922T3 ES2028922T3 ES198888104119T ES88104119T ES2028922T3 ES 2028922 T3 ES2028922 T3 ES 2028922T3 ES 198888104119 T ES198888104119 T ES 198888104119T ES 88104119 T ES88104119 T ES 88104119T ES 2028922 T3 ES2028922 T3 ES 2028922T3
- Authority
- ES
- Spain
- Prior art keywords
- antenna device
- directional antenna
- microwave directional
- mirror
- hyperboloid
- 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
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
- H01Q19/18—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
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
EL REFLECTOR DE PARADA (2) PREVISTO EN UNA ANTENA DE ALIMENTACION OFF-SET, GREFORY O CASSEGRAIN, NO ES UNA PARTE DE UN ELIPSOIDE ROTATIVO, SINO DE UN ELIPSOIDE GENERAL (4) CON DOS SEMIEJES (A,B,C) DIFERENTES. EL EMPLEO DE ESTE INVENTO ESTA PREVISTO EN ANTENAS DIRIGIBLES Y DE SATELITE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3708829 | 1987-03-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2028922T3 true ES2028922T3 (es) | 1992-07-16 |
Family
ID=6323396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES198888104119T Expired - Lifetime ES2028922T3 (es) | 1987-03-18 | 1988-03-15 | Dispositivo de antena direccional de microondas de dos espejos. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0284883B1 (es) |
AT (1) | ATE71773T1 (es) |
DE (1) | DE3867668D1 (es) |
ES (1) | ES2028922T3 (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4140841A1 (de) * | 1990-12-20 | 1992-07-02 | Siemens Ag | Mikrowellen-richtfunkantenne |
IT1275349B (it) * | 1994-11-25 | 1997-08-05 | Alenia Spazio Spa | Antenna con fascio ellittico ruotabile con possibilita' di riconfigurazione e zoom del fascio |
IT1308219B1 (it) * | 1998-09-14 | 2001-12-10 | Loral Space Systems Inc | Perfezionato sistema per comunicazioni satellitari comprendentemultiplatori di ingresso rf da una pluralita' di fasci locali ad un |
US6397039B1 (en) * | 1998-09-14 | 2002-05-28 | Space Systems/Loral, Inc. | Satellite communication system using multiple ground station RF power control in a single downlink beam |
US6496682B2 (en) * | 1998-09-14 | 2002-12-17 | Space Systems/Loral, Inc. | Satellite communication system employing unique spot beam antenna design |
US6243048B1 (en) * | 2000-02-04 | 2001-06-05 | Space Systems/Loral, Inc. | Gregorian reflector antenna system having a subreflector optimized for an elliptical antenna aperture |
US6411262B1 (en) * | 2000-08-22 | 2002-06-25 | Space Systems/Loral, Inc. | Shaped reflector antenna system configuration for use on a communication satellite |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3562753A (en) * | 1968-02-23 | 1971-02-09 | Hitachi Ltd | Casseyrain antenna system with rotatable main reflector for scanning |
DE3209513A1 (de) * | 1982-03-16 | 1984-02-09 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Exzentrische parabolantenne mit geringer kreuzpolarisation |
-
1988
- 1988-03-15 EP EP88104119A patent/EP0284883B1/de not_active Expired - Lifetime
- 1988-03-15 ES ES198888104119T patent/ES2028922T3/es not_active Expired - Lifetime
- 1988-03-15 AT AT88104119T patent/ATE71773T1/de not_active IP Right Cessation
- 1988-03-15 DE DE8888104119T patent/DE3867668D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE71773T1 (de) | 1992-02-15 |
EP0284883A1 (de) | 1988-10-05 |
DE3867668D1 (de) | 1992-02-27 |
EP0284883B1 (de) | 1992-01-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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