EP0391184A3 - Polarisationsweiche für zwei unterschiedliche Frequenzbänder - Google Patents
Polarisationsweiche für zwei unterschiedliche Frequenzbänder Download PDFInfo
- Publication number
- EP0391184A3 EP0391184A3 EP19900105641 EP90105641A EP0391184A3 EP 0391184 A3 EP0391184 A3 EP 0391184A3 EP 19900105641 EP19900105641 EP 19900105641 EP 90105641 A EP90105641 A EP 90105641A EP 0391184 A3 EP0391184 A3 EP 0391184A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- frequency bands
- openings
- waves
- different frequency
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
- H01P1/2131—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies with combining or separating polarisations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
- H01P1/161—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion sustaining two independent orthogonal modes, e.g. orthomode transducer
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3910816 | 1989-04-04 | ||
| DE3910816A DE3910816A1 (de) | 1989-04-04 | 1989-04-04 | Polarisationsweiche fuer zwei unterschiedliche frequenzbaender |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0391184A2 EP0391184A2 (de) | 1990-10-10 |
| EP0391184A3 true EP0391184A3 (de) | 1991-09-25 |
| EP0391184B1 EP0391184B1 (de) | 1994-03-16 |
Family
ID=6377793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90105641A Expired - Lifetime EP0391184B1 (de) | 1989-04-04 | 1990-03-24 | Polarisationsweiche für zwei unterschiedliche Frequenzbänder |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0391184B1 (de) |
| DE (2) | DE3910816A1 (de) |
| FI (1) | FI93403C (de) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3816835A (en) * | 1972-05-05 | 1974-06-11 | Thomas Csf | Multiplexer-demultiplexer for microwave antennas |
| US4176330A (en) * | 1977-12-23 | 1979-11-27 | Gte Sylvania Incorporated | Diplexer apparatus |
| FR2518822A1 (fr) * | 1981-12-17 | 1983-06-24 | Vitalink Communications Corp | Appareil et procede de guidage d'ondes pour des signaux a double frequence et a double polarisation, ainsi qu'une jonction de polarisation, un filtre plan et un orifice pour un tel appareil |
| EP0295812A2 (de) * | 1987-06-15 | 1988-12-21 | Gamma-f Corp. a Georgia Corporation | Viertor-Frequenzduplexer |
-
1989
- 1989-04-04 DE DE3910816A patent/DE3910816A1/de not_active Withdrawn
-
1990
- 1990-03-24 DE DE90105641T patent/DE59004968D1/de not_active Expired - Fee Related
- 1990-03-24 EP EP90105641A patent/EP0391184B1/de not_active Expired - Lifetime
- 1990-04-03 FI FI901674A patent/FI93403C/fi not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3816835A (en) * | 1972-05-05 | 1974-06-11 | Thomas Csf | Multiplexer-demultiplexer for microwave antennas |
| US4176330A (en) * | 1977-12-23 | 1979-11-27 | Gte Sylvania Incorporated | Diplexer apparatus |
| FR2518822A1 (fr) * | 1981-12-17 | 1983-06-24 | Vitalink Communications Corp | Appareil et procede de guidage d'ondes pour des signaux a double frequence et a double polarisation, ainsi qu'une jonction de polarisation, un filtre plan et un orifice pour un tel appareil |
| EP0295812A2 (de) * | 1987-06-15 | 1988-12-21 | Gamma-f Corp. a Georgia Corporation | Viertor-Frequenzduplexer |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN, Band 12, Nr. 268 (E-638)[3115], 27. Juli 1988; & JP-A-63 51 701 (NEC CORP.) 04-03-1988 * |
| TELECOMMUNICATIONS AND RADIO ENGINEERING, Band 29/30, Nr. 3, März 1975, Seiten 32-34, Washington, US; V.A. STUZHIN et al.: "Equipment for multiplexing the waveguide channels of radio-relay systems" * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0391184A2 (de) | 1990-10-10 |
| DE3910816A1 (de) | 1990-10-11 |
| FI93403C (fi) | 1995-03-27 |
| EP0391184B1 (de) | 1994-03-16 |
| FI901674A0 (fi) | 1990-04-03 |
| FI93403B (fi) | 1994-12-15 |
| DE59004968D1 (de) | 1994-04-21 |
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Legal Events
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|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| ITF | It: translation for a ep patent filed | ||
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