DE3775812D1 - Antenne mit hohem wirkungsgrad. - Google Patents
Antenne mit hohem wirkungsgrad.Info
- Publication number
- DE3775812D1 DE3775812D1 DE8787105544T DE3775812T DE3775812D1 DE 3775812 D1 DE3775812 D1 DE 3775812D1 DE 8787105544 T DE8787105544 T DE 8787105544T DE 3775812 T DE3775812 T DE 3775812T DE 3775812 D1 DE3775812 D1 DE 3775812D1
- Authority
- DE
- Germany
- Prior art keywords
- high efficiency
- efficiency antenna
- antenna
- efficiency
- 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
- 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
- H01Q19/185—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 wherein the surfaces are plane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/08—Helical antennas
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8605359A FR2597267B1 (fr) | 1986-04-15 | 1986-04-15 | Antenne a haute efficacite |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3775812D1 true DE3775812D1 (de) | 1992-02-20 |
Family
ID=9334237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787105544T Expired - Fee Related DE3775812D1 (de) | 1986-04-15 | 1987-04-14 | Antenne mit hohem wirkungsgrad. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0241921B1 (de) |
DE (1) | DE3775812D1 (de) |
ES (1) | ES2028820T3 (de) |
FR (1) | FR2597267B1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2586675B2 (ja) * | 1990-02-27 | 1997-03-05 | 国際電信電話株式会社 | 4線巻ヘリカルアンテナ |
GB2246910B (en) * | 1990-08-02 | 1994-12-14 | Polytechnic Electronics Plc | A radio frequency antenna |
GB9417450D0 (en) | 1994-08-25 | 1994-10-19 | Symmetricom Inc | An antenna |
GB9601250D0 (en) * | 1996-01-23 | 1996-03-27 | Symmetricom Inc | An antenna |
WO1998002936A1 (en) * | 1996-07-16 | 1998-01-22 | Qualcomm Incorporated | Modified helical antenna |
GB9813002D0 (en) | 1998-06-16 | 1998-08-12 | Symmetricom Inc | An antenna |
GB9828768D0 (en) | 1998-12-29 | 1999-02-17 | Symmetricom Inc | An antenna |
GB9902765D0 (en) | 1999-02-08 | 1999-03-31 | Symmetricom Inc | An antenna |
GB9912441D0 (en) | 1999-05-27 | 1999-07-28 | Symmetricon Inc | An antenna |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4494117A (en) * | 1982-07-19 | 1985-01-15 | The United States Of America As Represented By The Secretary Of The Navy | Dual sense, circularly polarized helical antenna |
SE443691B (sv) * | 1984-07-20 | 1986-03-03 | Ericsson Telefon Ab L M | Sendar-mottagarsystem i en satellit |
-
1986
- 1986-04-15 FR FR8605359A patent/FR2597267B1/fr not_active Expired
-
1987
- 1987-04-14 DE DE8787105544T patent/DE3775812D1/de not_active Expired - Fee Related
- 1987-04-14 EP EP19870105544 patent/EP0241921B1/de not_active Expired - Lifetime
- 1987-04-14 ES ES87105544T patent/ES2028820T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2597267A1 (fr) | 1987-10-16 |
ES2028820T3 (es) | 1992-07-16 |
EP0241921A1 (de) | 1987-10-21 |
FR2597267B1 (fr) | 1988-07-22 |
EP0241921B1 (de) | 1992-01-08 |
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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 |