JPS5549467B2 - - Google Patents
Info
- Publication number
- JPS5549467B2 JPS5549467B2 JP13778876A JP13778876A JPS5549467B2 JP S5549467 B2 JPS5549467 B2 JP S5549467B2 JP 13778876 A JP13778876 A JP 13778876A JP 13778876 A JP13778876 A JP 13778876A JP S5549467 B2 JPS5549467 B2 JP S5549467B2
- Authority
- JP
- Japan
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/001—Crossed polarisation dual antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q21/245—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction provided with means for varying the polarisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/002—Reducing depolarization effects
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13778876A JPS5362919A (en) | 1976-11-18 | 1976-11-18 | Axial radio compensator system |
US05/851,810 US4146893A (en) | 1976-11-18 | 1977-11-15 | System for compensating for cross polarization coupling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13778876A JPS5362919A (en) | 1976-11-18 | 1976-11-18 | Axial radio compensator system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5362919A JPS5362919A (en) | 1978-06-05 |
JPS5549467B2 true JPS5549467B2 (en]) | 1980-12-12 |
Family
ID=15206849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13778876A Granted JPS5362919A (en) | 1976-11-18 | 1976-11-18 | Axial radio compensator system |
Country Status (2)
Country | Link |
---|---|
US (1) | US4146893A (en]) |
JP (1) | JPS5362919A (en]) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4292685A (en) * | 1978-05-31 | 1981-09-29 | Lee Lin Shan | Apparatus and method for controlling crosspolarization of signals in a frequency reuse system |
US4293945A (en) * | 1979-08-29 | 1981-10-06 | Communications Satellite Corporation | Multichannel correlation receiver for determining depolarization of signals along signal propagation paths |
DE3062756D1 (en) * | 1979-09-19 | 1983-05-19 | Marconi Co Ltd | Satellite communication system |
US4520362A (en) * | 1980-04-16 | 1985-05-28 | Elint Corporation | Polarization ratiometry object detection system and method |
US4466132A (en) * | 1981-04-15 | 1984-08-14 | Nippon Electric Co., Ltd. | Cross-polarization crosstalk elimination circuit |
CA1196961A (en) * | 1981-11-16 | 1985-11-19 | Goro Oshima | Earth station transmission power control system for keeping an eirp of down link signals constant irrespective of weather |
EP0085614B1 (en) * | 1982-01-28 | 1989-08-09 | Fujitsu Limited | Data transmitting-receiving system |
US4438530A (en) | 1982-06-14 | 1984-03-20 | Bell Telephone Laboratories, Incorporated | Adaptive cross-polarization interference cancellation system |
DE3390057T1 (de) * | 1982-06-24 | 1984-07-12 | Rca Corp., Princeton, N.J. | Verfahren und Anordnung zur Korrektur von Kreuzpolarisationsfehlern |
DE3336418A1 (de) * | 1983-10-06 | 1985-05-02 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung zur kompensation von kreuzpolarisationskomponenten bei einer antenne mit einem gekruemmten reflektor und einem seitlich einstrahlenden primaerstrahler |
JPH0624342B2 (ja) * | 1988-06-29 | 1994-03-30 | 日本電気株式会社 | アップリンク交差偏波補償装置 |
JP2919270B2 (ja) * | 1994-06-22 | 1999-07-12 | 日本電気株式会社 | 衛星放送方式 |
US5701591A (en) * | 1995-04-07 | 1997-12-23 | Telecommunications Equipment Corporation | Multi-function interactive communications system with circularly/elliptically polarized signal transmission and reception |
US6470193B1 (en) * | 1997-04-11 | 2002-10-22 | Telefonaktiebolaget L M Ericsson (Publ) | Power efficient indoor radio base station |
US6233435B1 (en) | 1997-10-14 | 2001-05-15 | Telecommunications Equipment Corporation | Multi-function interactive communications system with circularly/elliptically polarized signal transmission and reception |
DE60135661D1 (de) * | 2001-10-11 | 2008-10-16 | Eutelsat Sa | Verfahren und System zur Polarisationsausrichtung einer Bodenstationantenne mit der Polarisationsachse einer Satellitenantenne |
FI20021000A0 (fi) * | 2002-05-28 | 2002-05-28 | Nokia Corp | Pilotti radiojärjestelmässä |
KR100775656B1 (ko) | 2006-10-31 | 2007-11-13 | 한국항공우주연구원 | 스펙트럼 정보를 이용한 크로스편파화 예측장치 및예측방법 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3500207A (en) * | 1967-09-22 | 1970-03-10 | Bell Telephone Labor Inc | Automatic rotation correction for cross-polarized microwave reception |
US3735266A (en) * | 1971-12-20 | 1973-05-22 | Bell Telephone Labor Inc | Method and apparatus for reducing crosstalk on cross-polarized communication links |
IT1020414B (it) * | 1974-09-03 | 1977-12-20 | Telespazio Spa | Dispositivo per la correzione au tomatica degli effetti di depola rizzazione di onde elettromagneti che nei collegamenti a radiofre quenza utilizzanti una doppia po larizzazione |
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1976
- 1976-11-18 JP JP13778876A patent/JPS5362919A/ja active Granted
-
1977
- 1977-11-15 US US05/851,810 patent/US4146893A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS5362919A (en) | 1978-06-05 |
US4146893A (en) | 1979-03-27 |