FR2442518A1 - Dispositif pour relever l'erreur de pointage de l'antenne dans un systeme de telecommunications - Google Patents

Dispositif pour relever l'erreur de pointage de l'antenne dans un systeme de telecommunications

Info

Publication number
FR2442518A1
FR2442518A1 FR7927534A FR7927534A FR2442518A1 FR 2442518 A1 FR2442518 A1 FR 2442518A1 FR 7927534 A FR7927534 A FR 7927534A FR 7927534 A FR7927534 A FR 7927534A FR 2442518 A1 FR2442518 A1 FR 2442518A1
Authority
FR
France
Prior art keywords
modes
telecommunications system
degrees
pointing error
recognizing
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.)
Withdrawn
Application number
FR7927534A
Other languages
English (en)
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.)
Italtel SpA
Original Assignee
Societa Italiana Telecomunicazioni Siemens SpA
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
Application filed by Societa Italiana Telecomunicazioni Siemens SpA filed Critical Societa Italiana Telecomunicazioni Siemens SpA
Publication of FR2442518A1 publication Critical patent/FR2442518A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/146—Systems for determining direction or deviation from predetermined direction by comparing linear polarisation components
    • 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 

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

Dispositif pour relever l'erreur de pointage dans un système de télécommunications du type comprenant en série après le cornet H de l'antenne des déphaseurs différentiels DP1 , DP2 de 90 degrés , et des moyens OMT d'extraction des modes polarisés suivant deux directions orthogonales. Entre le cornet H et le déphaseur DP1 sont insérés des moyens AD aptes à prélever deux modes supérieurs excités et à les envoyer à des moyens OMT1 aptes à injecter lesdits modes suivant deux plans orthogonaux dans un tronçon de guide d'onde G2 , dans lequel sont insérés un déphaseur différentiel DP de 180 degrés , et des moyens OMT2 aptes à extraire des modes polarisés suivant deux directions orthogonales entre elles et ayant subi une rotation de 45 degrés par rapport à celles des moyens OMT1 .
FR7927534A 1978-11-27 1979-11-08 Dispositif pour relever l'erreur de pointage de l'antenne dans un systeme de telecommunications Withdrawn FR2442518A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT30211/78A IT1160267B (it) 1978-11-27 1978-11-27 Disposizione circuitale per rilevare l'errore di puntamento dell'antenna in un sistema di telecomunicazioni

Publications (1)

Publication Number Publication Date
FR2442518A1 true FR2442518A1 (fr) 1980-06-20

Family

ID=11229329

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7927534A Withdrawn FR2442518A1 (fr) 1978-11-27 1979-11-08 Dispositif pour relever l'erreur de pointage de l'antenne dans un systeme de telecommunications

Country Status (6)

Country Link
JP (1) JPS5577206A (fr)
BR (1) BR7907537A (fr)
DE (1) DE2947762A1 (fr)
FR (1) FR2442518A1 (fr)
GB (1) GB2040587B (fr)
IT (1) IT1160267B (fr)

Cited By (4)

* 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
EP0073258A1 (fr) * 1981-08-27 1983-03-09 Mitsubishi Denki Kabushiki Kaisha Dispositif de détection d'écart angulaire
EP0306654A2 (fr) * 1981-08-27 1989-03-15 Mitsubishi Denki Kabushiki Kaisha Dispositif de détection d'écart angulaire
EP0319753A1 (fr) * 1987-12-08 1989-06-14 Kathrein-Werke Kg Système d'excitation respectivement d'alimentation pour une antenne parabolique

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2160794A1 (fr) * 1971-11-24 1973-07-06 Siemens Spa Italiana

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2160794A1 (fr) * 1971-11-24 1973-07-06 Siemens Spa Italiana

Cited By (7)

* 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
EP0068940A1 (fr) * 1981-06-11 1983-01-05 ALCATEL THOMSON FAISCEAUX HERTZIENS Société Anonyme dite Source primaire à réutilisation de fréquences
US4507665A (en) * 1981-06-11 1985-03-26 Thomson-Csf Primary source with frequency re-utilization
EP0073258A1 (fr) * 1981-08-27 1983-03-09 Mitsubishi Denki Kabushiki Kaisha Dispositif de détection d'écart angulaire
EP0306654A2 (fr) * 1981-08-27 1989-03-15 Mitsubishi Denki Kabushiki Kaisha Dispositif de détection d'écart angulaire
EP0306654A3 (en) * 1981-08-27 1989-05-03 Mitsubishi Denki Kabushiki Kaisha Angular error detecting device
EP0319753A1 (fr) * 1987-12-08 1989-06-14 Kathrein-Werke Kg Système d'excitation respectivement d'alimentation pour une antenne parabolique

Also Published As

Publication number Publication date
DE2947762A1 (de) 1980-06-04
BR7907537A (pt) 1980-08-05
GB2040587A (en) 1980-08-28
JPS5577206A (en) 1980-06-10
IT1160267B (it) 1987-03-11
IT7830211A0 (it) 1978-11-27
GB2040587B (en) 1983-02-16

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Legal Events

Date Code Title Description
ST Notification of lapse