FR2034170A1 - - Google Patents
Info
- Publication number
- FR2034170A1 FR2034170A1 FR6903851A FR6903851A FR2034170A1 FR 2034170 A1 FR2034170 A1 FR 2034170A1 FR 6903851 A FR6903851 A FR 6903851A FR 6903851 A FR6903851 A FR 6903851A FR 2034170 A1 FR2034170 A1 FR 2034170A1
- Authority
- FR
- France
- 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.)
- Withdrawn
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
- H01Q19/195—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 wherein a reflecting surface acts also as a polarisation filter or a polarising device
-
- 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
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6903851A FR2034170A1 (fr) | 1969-02-17 | 1969-02-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6903851A FR2034170A1 (fr) | 1969-02-17 | 1969-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2034170A1 true FR2034170A1 (fr) | 1970-12-11 |
Family
ID=9029175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6903851A Withdrawn FR2034170A1 (fr) | 1969-02-17 | 1969-02-17 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2034170A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2485818A1 (fr) * | 1980-06-24 | 1981-12-31 | Kokusai Denshin Denwa Co Ltd | Antenne en reseau |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR777709A (fr) * | 1933-08-29 | 1935-02-27 | Telefunken Gmbh | Procédé pour protéger les récepteurs d'ondes ultra-courtes contre les oscillations parasites |
GB650041A (en) * | 1943-09-06 | 1951-02-14 | Sperry Gyroscope Co Inc | Improvements in or relating to antennae or radiators for electromagnetic waves |
FR1107577A (fr) * | 1953-06-17 | 1956-01-03 | Marconi Wireless Telegraph Co | Perfectionnements aux systèmes d'antennes directives |
GB901005A (en) * | 1959-05-18 | 1962-07-11 | Tesla Np | Improvements in or relating to a parabolic reflector antenna for waves polarized in two directions |
-
1969
- 1969-02-17 FR FR6903851A patent/FR2034170A1/fr not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR777709A (fr) * | 1933-08-29 | 1935-02-27 | Telefunken Gmbh | Procédé pour protéger les récepteurs d'ondes ultra-courtes contre les oscillations parasites |
GB650041A (en) * | 1943-09-06 | 1951-02-14 | Sperry Gyroscope Co Inc | Improvements in or relating to antennae or radiators for electromagnetic waves |
FR1107577A (fr) * | 1953-06-17 | 1956-01-03 | Marconi Wireless Telegraph Co | Perfectionnements aux systèmes d'antennes directives |
GB901005A (en) * | 1959-05-18 | 1962-07-11 | Tesla Np | Improvements in or relating to a parabolic reflector antenna for waves polarized in two directions |
Non-Patent Citations (1)
Title |
---|
REVUE: IEEE TRANSACTIONS ON COMMUNICATION AND ELECTRONICS, NOV. 1963, NO.69, PAGES 657 A 663) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2485818A1 (fr) * | 1980-06-24 | 1981-12-31 | Kokusai Denshin Denwa Co Ltd | Antenne en reseau |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |