FR2349968B1 - - Google Patents
Info
- Publication number
- FR2349968B1 FR2349968B1 FR7612469A FR7612469A FR2349968B1 FR 2349968 B1 FR2349968 B1 FR 2349968B1 FR 7612469 A FR7612469 A FR 7612469A FR 7612469 A FR7612469 A FR 7612469A FR 2349968 B1 FR2349968 B1 FR 2349968B1
- 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.)
- Expired
Links
Classifications
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- 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
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
- H01Q15/0033—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective used for beam splitting or combining, e.g. acting as a quasi-optical multiplexer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
- H01P5/022—Transitions between lines of the same kind and shape, but with different dimensions
- H01P5/024—Transitions between lines of the same kind and shape, but with different dimensions between hollow waveguides
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7612469A FR2349968A1 (fr) | 1976-04-27 | 1976-04-27 | Guide d'ondes a acces lateral et multiplexeur-demultiplexeur muni d'un tel guide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7612469A FR2349968A1 (fr) | 1976-04-27 | 1976-04-27 | Guide d'ondes a acces lateral et multiplexeur-demultiplexeur muni d'un tel guide |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2349968A1 FR2349968A1 (fr) | 1977-11-25 |
FR2349968B1 true FR2349968B1 (fr) | 1981-06-12 |
Family
ID=9172370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7612469A Granted FR2349968A1 (fr) | 1976-04-27 | 1976-04-27 | Guide d'ondes a acces lateral et multiplexeur-demultiplexeur muni d'un tel guide |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2349968A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2450509A1 (fr) * | 1979-03-02 | 1980-09-26 | Thomson Csf | Dispositif polariseur pour antenne microonde |
FR2487587A1 (fr) * | 1980-07-22 | 1982-01-29 | Thomson Csf | Filtre passe-bande hyperfrequence realise en guide d'ondes |
FR2488055A1 (fr) * | 1980-07-31 | 1982-02-05 | Thomson Csf | Transducteur d'antenne pour antenne d'emission-reception et source primaire d'antenne equipee d'un tel transducteur |
FR2525823A1 (fr) * | 1982-04-27 | 1983-10-28 | Thomson Csf | Dispositif d'excitation d'une source rainuree hyperfrequence bi-bande |
FR2551921B1 (fr) * | 1983-09-09 | 1986-02-21 | Thomson Csf | 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 |
DE3402659A1 (de) * | 1984-01-26 | 1985-08-01 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Reflektorantenne fuer den betrieb in mehreren frequenzbereichen |
DE4121245C2 (de) * | 1991-06-27 | 1995-08-10 | Daimler Benz Aerospace Ag | Frequenzselektive Oberflächenstruktur |
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1976
- 1976-04-27 FR FR7612469A patent/FR2349968A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2349968A1 (fr) | 1977-11-25 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |