BE720984A - - Google Patents
Info
- Publication number
- BE720984A BE720984A BE720984DA BE720984A BE 720984 A BE720984 A BE 720984A BE 720984D A BE720984D A BE 720984DA BE 720984 A BE720984 A BE 720984A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Radio Transmission System (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US66979567A | 1967-09-22 | 1967-09-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE720984A true BE720984A (xx) | 1969-03-03 |
Family
ID=24687777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE720984D BE720984A (xx) | 1967-09-22 | 1968-09-17 |
Country Status (8)
Country | Link |
---|---|
US (1) | US3500207A (xx) |
JP (1) | JPS494780B1 (xx) |
BE (1) | BE720984A (xx) |
DE (1) | DE1791118B1 (xx) |
FR (1) | FR1583342A (xx) |
GB (1) | GB1233228A (xx) |
NL (1) | NL162528C (xx) |
SE (1) | SE331305B (xx) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3760274A (en) * | 1971-10-13 | 1973-09-18 | Us Army | Modulation of polarization orientation and concurrent conventional modulation of the same radiated carrier |
US9294184B1 (en) * | 1973-01-05 | 2016-03-22 | Lockheed Martin Corporation | Accurate fast-switching cross polarization repeater using non-reciprocal solid-state phase shifters |
DE2315241C3 (de) * | 1973-03-27 | 1983-11-24 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung in einem Mikrowellen- Funkübertragungssystem |
US3881154A (en) * | 1973-07-13 | 1975-04-29 | Us Air Force | High resolution, very short pulse, ionosounder |
JPS51115717A (en) * | 1975-03-03 | 1976-10-12 | Nec Corp | Cross polarized wave compensating method |
US3990009A (en) * | 1975-03-14 | 1976-11-02 | Bell Telephone Laboratories, Incorporated | Method and apparatus for uniquely encoding channels in a digital transmission system |
US4087818A (en) * | 1975-10-14 | 1978-05-02 | Communications Satellite Corporation | Lossless network and method for orthogonalizing dual polarized transmission systems |
US4112370A (en) * | 1976-08-06 | 1978-09-05 | Signatron, Inc. | Digital communications receiver for dual input signal |
US4227249A (en) * | 1976-08-09 | 1980-10-07 | The United States Of America As Represented By The Secretary Of The Navy | Injected coded reference for adaptive array systems |
JPS5362479U (xx) * | 1976-10-27 | 1978-05-26 | ||
JPS5362919A (en) * | 1976-11-18 | 1978-06-05 | Kokusai Denshin Denwa Co Ltd | Axial radio compensator system |
JPS5945309B2 (ja) * | 1978-02-08 | 1984-11-05 | ケイディディ株式会社 | 交さ偏波補償方式 |
US4233576A (en) * | 1978-05-16 | 1980-11-11 | Harris Corporation | Automatic polarization decoupling network |
US4293945A (en) * | 1979-08-29 | 1981-10-06 | Communications Satellite Corporation | Multichannel correlation receiver for determining depolarization of signals along signal propagation paths |
US4283795A (en) * | 1979-10-03 | 1981-08-11 | Bell Telephone Laboratories, Incorporated | Adaptive cross-polarization interference cancellation arrangements |
DE3519528A1 (de) * | 1985-05-31 | 1986-12-04 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Verfahren zum erzeugen eines steuersignals zur polarisationsausrichtung einer antenne |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3214590A (en) * | 1962-06-28 | 1965-10-26 | Bell Telephone Labor Inc | Communication receiver utilizing negative feedback polarization modulation of electromagnetic waves and communication system including said receiver |
US3310805A (en) * | 1964-10-19 | 1967-03-21 | Benedict P Viglietta | Automatic polarization tracker |
-
1967
- 1967-09-22 US US669795A patent/US3500207A/en not_active Expired - Lifetime
-
1968
- 1968-09-09 SE SE12094/68A patent/SE331305B/xx unknown
- 1968-09-16 NL NL6813218.A patent/NL162528C/xx not_active IP Right Cessation
- 1968-09-17 BE BE720984D patent/BE720984A/xx not_active IP Right Cessation
- 1968-09-17 DE DE19681791118 patent/DE1791118B1/de active Pending
- 1968-09-17 GB GB1233228D patent/GB1233228A/en not_active Expired
- 1968-09-18 JP JP43067008A patent/JPS494780B1/ja active Pending
- 1968-09-20 FR FR1583342D patent/FR1583342A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1791118B1 (de) | 1974-03-07 |
JPS494780B1 (xx) | 1974-02-02 |
NL6813218A (xx) | 1969-03-25 |
NL162528C (nl) | 1980-05-16 |
FR1583342A (xx) | 1969-10-24 |
GB1233228A (xx) | 1971-05-26 |
US3500207A (en) | 1970-03-10 |
SE331305B (xx) | 1970-12-21 |
NL162528B (nl) | 1979-12-17 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE20 | Patent expired |
Owner name: WESTERN ELECTRIC CY INC. Effective date: 19880917 |