DE3480369D1 - Antenna - Google Patents
AntennaInfo
- Publication number
- DE3480369D1 DE3480369D1 DE8484401723T DE3480369T DE3480369D1 DE 3480369 D1 DE3480369 D1 DE 3480369D1 DE 8484401723 T DE8484401723 T DE 8484401723T DE 3480369 T DE3480369 T DE 3480369T DE 3480369 D1 DE3480369 D1 DE 3480369D1
- Authority
- DE
- Germany
- Prior art keywords
- antenna
- 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
Links
Classifications
-
- 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
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8314404A FR2551921B1 (fr) | 1983-09-09 | 1983-09-09 | Procede permettant de reduire l'amplitude de l'energie hyperfrequence reflechie dans l'axe d'un aerien, radar et aerien de station de communication avec satellite utilisant un tel procede |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3480369D1 true DE3480369D1 (en) | 1989-12-07 |
Family
ID=9292100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484401723T Expired DE3480369D1 (en) | 1983-09-09 | 1984-08-28 | Antenna |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0145510B1 (de) |
DE (1) | DE3480369D1 (de) |
FR (1) | FR2551921B1 (de) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3403403A (en) * | 1966-03-08 | 1968-09-24 | Army Usa | Antenna filter window |
US3769623A (en) * | 1972-09-21 | 1973-10-30 | Nasa | Low loss dichroic plate |
FR2349968A1 (fr) * | 1976-04-27 | 1977-11-25 | Thomson Csf | Guide d'ondes a acces lateral et multiplexeur-demultiplexeur muni d'un tel guide |
US4126866A (en) * | 1977-05-17 | 1978-11-21 | Ohio State University Research Foundation | Space filter surface |
US4284992A (en) * | 1979-12-26 | 1981-08-18 | Bell Telephone Laboratories, Incorporated | Wide scan quasi-optical frequency diplexer |
FR2514203B1 (fr) * | 1981-10-05 | 1986-04-25 | Radant Etudes | Filtre adaptatif spatial hyperfrequence pour antenne a polarisation quelconque et son procede de mise en oeuvre |
FR2518828A1 (fr) * | 1981-12-18 | 1983-06-24 | Thomson Csf | Filtre spatial de frequences et antenne comportant un tel filtre |
-
1983
- 1983-09-09 FR FR8314404A patent/FR2551921B1/fr not_active Expired
-
1984
- 1984-08-28 EP EP19840401723 patent/EP0145510B1/de not_active Expired
- 1984-08-28 DE DE8484401723T patent/DE3480369D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0145510B1 (de) | 1989-11-02 |
FR2551921A1 (fr) | 1985-03-15 |
EP0145510A1 (de) | 1985-06-19 |
FR2551921B1 (fr) | 1986-02-21 |
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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 |