DE69018313D1 - Sende-Empfangs-Diplexer für zirkulare Polarisation. - Google Patents
Sende-Empfangs-Diplexer für zirkulare Polarisation.Info
- Publication number
- DE69018313D1 DE69018313D1 DE69018313T DE69018313T DE69018313D1 DE 69018313 D1 DE69018313 D1 DE 69018313D1 DE 69018313 T DE69018313 T DE 69018313T DE 69018313 T DE69018313 T DE 69018313T DE 69018313 D1 DE69018313 D1 DE 69018313D1
- Authority
- DE
- Germany
- Prior art keywords
- diplexer
- transceiver
- circular polarization
- polarization
- circular
- 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
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/024—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
- G01S7/034—Duplexers
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/359,242 US4968957A (en) | 1989-05-31 | 1989-05-31 | Transmit and receive diplexer for circular polarization |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69018313D1 true DE69018313D1 (de) | 1995-05-11 |
DE69018313T2 DE69018313T2 (de) | 1995-11-02 |
Family
ID=23412964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69018313T Expired - Fee Related DE69018313T2 (de) | 1989-05-31 | 1990-05-14 | Sende-Empfangs-Diplexer für zirkulare Polarisation. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4968957A (de) |
EP (1) | EP0400833B1 (de) |
JP (1) | JP2507671B2 (de) |
CA (1) | CA2015028C (de) |
DE (1) | DE69018313T2 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5471177A (en) * | 1994-07-29 | 1995-11-28 | Hughes Aircraft Company | Octave band gap diplexer |
US5701591A (en) * | 1995-04-07 | 1997-12-23 | Telecommunications Equipment Corporation | Multi-function interactive communications system with circularly/elliptically polarized signal transmission and reception |
US6064862A (en) * | 1997-07-18 | 2000-05-16 | Innova Corporation | Method and apparatus for external band selection of a digital microwave radio |
US6233435B1 (en) | 1997-10-14 | 2001-05-15 | Telecommunications Equipment Corporation | Multi-function interactive communications system with circularly/elliptically polarized signal transmission and reception |
US10297920B2 (en) * | 2017-02-16 | 2019-05-21 | Lockheed Martin Corporation | Compact dual circular polarization multi-band waveguide feed network |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB847255A (en) * | 1957-10-15 | 1960-09-07 | Gen Electric Co Ltd | Improvements in or relating to superheterodyne radio receivers |
US3428918A (en) * | 1966-05-26 | 1969-02-18 | Us Army | Multiplexer channel units |
CA876930A (en) * | 1970-01-22 | 1971-07-27 | R. Bastikar Arvind | Microwave waveguide filter |
US3668564A (en) * | 1971-04-16 | 1972-06-06 | Bell Telephone Labor Inc | Waveguide channel diplexer and mode transducer |
US3731235A (en) * | 1971-11-03 | 1973-05-01 | Gte Sylvania Inc | Dual polarized diplexer |
US3845423A (en) * | 1973-09-26 | 1974-10-29 | Itt | Low loss high-q filter |
FR2363185A1 (fr) * | 1976-08-27 | 1978-03-24 | Thomson Csf | Dispositif de couplage pour tube hyperfrequence et tube hyperfrequence comportant un tel dispositif |
GB2006539A (en) * | 1977-05-25 | 1979-05-02 | Marconi Co Ltd | Dual Evanescent Mode Waveguide Filter |
FR2582449B1 (fr) * | 1979-07-24 | 1988-08-26 | Thomson Csf | Dispositif diplexeur de polarisations a large bande et antenne associee a un radar ou a un dispositif de contre-mesure comportant un tel dispositif |
US4427953A (en) * | 1981-11-16 | 1984-01-24 | Hughes Aircraft Company | Microwave diplexer |
JPS58139501A (ja) * | 1982-02-15 | 1983-08-18 | Nippon Dengiyou Kosaku Kk | 有極形帯域通過ろ波器 |
US4446463A (en) * | 1982-02-24 | 1984-05-01 | The United States Of America As Represented By The Secretary Of The Navy | Coaxial waveguide commutation feed network for use with a scanning circular phased array antenna |
US4689627A (en) * | 1983-05-20 | 1987-08-25 | Hughes Aircraft Company | Dual band phased antenna array using wideband element with diplexer |
JPS6217203U (de) * | 1985-07-15 | 1987-02-02 | ||
US4783639A (en) * | 1985-11-21 | 1988-11-08 | Hughes Aircraft Company | Wideband microwave diplexer including band pass and band stop resonators |
US4752753A (en) * | 1986-09-04 | 1988-06-21 | Wavecom | Coaxial waveguide band reject filter |
JPH0671167B2 (ja) * | 1987-08-26 | 1994-09-07 | 三菱電機株式会社 | マイクロ波分波器 |
-
1989
- 1989-05-31 US US07/359,242 patent/US4968957A/en not_active Expired - Lifetime
-
1990
- 1990-04-20 CA CA002015028A patent/CA2015028C/en not_active Expired - Fee Related
- 1990-05-14 EP EP90305162A patent/EP0400833B1/de not_active Expired - Lifetime
- 1990-05-14 DE DE69018313T patent/DE69018313T2/de not_active Expired - Fee Related
- 1990-05-31 JP JP2140113A patent/JP2507671B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0322701A (ja) | 1991-01-31 |
US4968957A (en) | 1990-11-06 |
DE69018313T2 (de) | 1995-11-02 |
EP0400833A3 (de) | 1991-05-29 |
CA2015028A1 (en) | 1990-11-30 |
EP0400833B1 (de) | 1995-04-05 |
EP0400833A2 (de) | 1990-12-05 |
JP2507671B2 (ja) | 1996-06-12 |
CA2015028C (en) | 1994-04-19 |
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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 |