FR2445670A1 - Systeme d'alimentation pour antenne - Google Patents

Systeme d'alimentation pour antenne

Info

Publication number
FR2445670A1
FR2445670A1 FR7931614A FR7931614A FR2445670A1 FR 2445670 A1 FR2445670 A1 FR 2445670A1 FR 7931614 A FR7931614 A FR 7931614A FR 7931614 A FR7931614 A FR 7931614A FR 2445670 A1 FR2445670 A1 FR 2445670A1
Authority
FR
France
Prior art keywords
branch circuit
transducer
supply system
antenna
circuit
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
Application number
FR7931614A
Other languages
English (en)
Other versions
FR2445670B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP16060778A external-priority patent/JPS5586240A/ja
Priority claimed from JP2474379A external-priority patent/JPS6021498B2/ja
Application filed by Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Publication of FR2445670A1 publication Critical patent/FR2445670A1/fr
Application granted granted Critical
Publication of FR2445670B1 publication Critical patent/FR2445670B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/002—Reducing depolarization effects

Abstract

L'invention concerne un système d'alimentation d'antenne. Selon l'invention, un émetteur et un récepteur reliés à une antenne 10 par un duplexeur 12 comprennent chacun un polariseur de pi /2 17 et 15 et un polariseur de pi 16 et 14, ainsi qu'un transducteur en mode ortho 19 et 18 interconnectés en série. Dans le récepteur, le transducteur 18 est relié par une sortie, à un circuit de ramification 22-26 et par son autre sortie à un coupleur 32 qui est relié au circuit de ramification 22-26 par un circuit de transfert 34-36. Dans l'émetteur, le transducteur 19 est relié par une entrée, à un circuit de ramification 33-41 et par son autre entrée à un coupleur 39 subséquemment relié au circuit de ramification 33-41 par un circuit de transfert 35-37. L'invention s'applique notamment aux communications par satellites.
FR7931614A 1978-12-25 1979-12-24 Systeme d'alimentation pour antenne Granted FR2445670A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP16060778A JPS5586240A (en) 1978-12-25 1978-12-25 Antenna feeding unit
JP2474379A JPS6021498B2 (ja) 1979-03-02 1979-03-02 交差偏波補償装置

Publications (2)

Publication Number Publication Date
FR2445670A1 true FR2445670A1 (fr) 1980-07-25
FR2445670B1 FR2445670B1 (fr) 1985-05-24

Family

ID=26362312

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7931614A Granted FR2445670A1 (fr) 1978-12-25 1979-12-24 Systeme d'alimentation pour antenne

Country Status (3)

Country Link
US (1) US4345255A (fr)
FR (1) FR2445670A1 (fr)
GB (1) GB2039699B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0645896A2 (fr) * 1993-09-24 1995-03-29 Robert Bosch Gmbh Procédé de transmission de données en duplex entre une balise et un véhicule

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507826A1 (fr) * 1981-06-11 1982-12-17 Thomson Csf Source primaire a reutilisation de frequences
JPS59178002A (ja) * 1983-03-29 1984-10-09 Radio Res Lab 円偏波アンテナ
US5214394A (en) * 1991-04-15 1993-05-25 Rockwell International Corporation High efficiency bi-directional spatial power combiner amplifier

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2303425A1 (fr) * 1975-03-03 1976-10-01 Nippon Electric Co Dispositif d'elimination de depolarisation dans un ensemble emetteur-recepteur
GB2014399A (en) * 1978-02-08 1979-08-22 Kokusai Denshin Denwa Co Ltd Cross polarization compensation system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735266A (en) * 1971-12-20 1973-05-22 Bell Telephone Labor Inc Method and apparatus for reducing crosstalk on cross-polarized communication links

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2303425A1 (fr) * 1975-03-03 1976-10-01 Nippon Electric Co Dispositif d'elimination de depolarisation dans un ensemble emetteur-recepteur
GB1543984A (en) * 1975-03-03 1979-04-11 Nippon Electric Co Microwave signal transmission system
GB2014399A (en) * 1978-02-08 1979-08-22 Kokusai Denshin Denwa Co Ltd Cross polarization compensation system
FR2417218A1 (fr) * 1978-02-08 1979-09-07 Kokusai Denshin Denwa Co Ltd Dispositif de compensation de polarisation croisee pour liaisons radioelectriques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/77 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0645896A2 (fr) * 1993-09-24 1995-03-29 Robert Bosch Gmbh Procédé de transmission de données en duplex entre une balise et un véhicule
EP0645896A3 (fr) * 1993-09-24 1999-06-16 Robert Bosch Gmbh Procédé de transmission de données en duplex entre une balise et un véhicule

Also Published As

Publication number Publication date
GB2039699B (en) 1983-05-11
GB2039699A (en) 1980-08-13
US4345255A (en) 1982-08-17
FR2445670B1 (fr) 1985-05-24

Similar Documents

Publication Publication Date Title
ATE21216T1 (de) Transkutanes signaluebertragungssystem.
MX9709332A (es) Control de la resistencia de la señal piloto para un sistema de comunicaciones por satelite terrestre de orbita baja.
JPS5563166A (en) Continuous transmission system for picture information
FR2445670A1 (fr) Systeme d'alimentation pour antenne
JPS57197934A (en) Radio transmitter and receiver
EP0355979A3 (fr) Montage amplificateur de puissance
JPS5779706A (en) Sleeve antenna
JPS56157153A (en) Data repeating device
FR2418984A1 (fr) Station-relais pour les telecommunications par satellite
SU1053303A1 (ru) Многоствольный ретрансл тор
GB1287845A (fr)
JPS6429131A (en) Transmission/reception antenna sharing system
JPS6432185A (en) Transmitter and receiver for earth station for satellite navigation and satellite communication
JPS6489702A (en) Directional coupler
JPS56112141A (en) Wave length multiplex-loop type network
ATE39204T1 (de) Tunnelantennensystem zur breitbandigen signaluebertragung.
JPS56115017A (en) Branching device
JPS57143937A (en) Output controlling system
JPS54146523A (en) Transmission/reception system for high-quality television signal
GB1289351A (fr)
JPH01183923A (ja) ブースター増幅器
JPS5530647A (en) Directive compression receiver
JPS56158568A (en) Radio communication system
JPS54139421A (en) Signal transmission system
JPS5713835A (en) Malfunction-preventing transmitting method of controller using transmitter and receiver