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EP0235623A1 - Device for adjusting the polarization of an antenna and method for using such a device - Google Patents

Device for adjusting the polarization of an antenna and method for using such a device Download PDF

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Publication number
EP0235623A1
EP0235623A1 EP87101837A EP87101837A EP0235623A1 EP 0235623 A1 EP0235623 A1 EP 0235623A1 EP 87101837 A EP87101837 A EP 87101837A EP 87101837 A EP87101837 A EP 87101837A EP 0235623 A1 EP0235623 A1 EP 0235623A1
Authority
EP
European Patent Office
Prior art keywords
source
antenna
adjustment
rocker
connector
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
EP87101837A
Other languages
German (de)
French (fr)
Other versions
EP0235623B1 (en
Inventor
René Chevallier
Jean Fouillet
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.)
Alcatel Transmission par Faisceaux Hertziens SA
Original Assignee
Alcatel Thomson Faisceaux Hertziens SA
Alcatel Transmission par Faisceaux Hertziens SA
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 Alcatel Thomson Faisceaux Hertziens SA, Alcatel Transmission par Faisceaux Hertziens SA filed Critical Alcatel Thomson Faisceaux Hertziens SA
Publication of EP0235623A1 publication Critical patent/EP0235623A1/en
Application granted granted Critical
Publication of EP0235623B1 publication Critical patent/EP0235623B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/125—Means for positioning
    • H01Q1/1264—Adjusting different parts or elements of an aerial unit
    • 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 

Definitions

  • the present invention relates to a device for adjusting the polarization of an antenna and to its implementation method.
  • This adjustment of the verticality of the polarization can be carried out very simply using a level placed on a reference face at the rear of the source, when this source is accessible, which is not always the case. case.
  • this angular reference can be completely inaccessible from the adjustment point.
  • the invention overcomes these drawbacks.
  • the invention provides for this purpose a device for adjusting, with respect to a reference plane, the polarization of an antenna comprising a source movable in rotation, said adjustment device comprising an angular reference device located near the opening of this source, characterized in that the angular reference device is a rocker with mercury contacts secured to the source and in that said adjustment device comprises a connector located at the rear of the antenna in an area accessible to adjustment and a cable with several conductors making the electrical connection between said contacts and the connector, so as to electrically connect the reference device to a display device.
  • the rocker used is a rocker with three contacts which is connected to the connector by a three-conductor cable.
  • the invention proposes not only a method of implementing such a device which successively comprises two steps: - a first step during which the source is rotated in one direction so that a first contact of the rocker is closed and a second contact is open; - A second step during which the source is made to rotate very slowly in the other direction, the angular position corresponding to the opening of the first contact and the closing of the second being the desired position.
  • the source 10 is located at the top of the main reflector 11, an auxiliary reflector 12 also being shown.
  • this source 10 is very rigid and its supply part is directly accessible at the rear of the antenna. Under these conditions, the verticality of the polarization can be adjusted very simply using a level placed on a reference face 13 at the rear of this source 10, by rotating it in the direction 14.
  • the rotation control 15 of the source 16, here of the "swan neck” type must always be able to be carried out at the rear of the antenna; on the other hand, the angular reference 17 of verticality must remain at the focus of the reflector 18 and cannot be mechanically transferred with precision to the adjustment point 19.
  • the angular reference can be completely invisible from the set point 19; this is the case of a radomated antenna, as represented in FIG. 3.
  • Such an antenna comprises a main reflector 20 provided with a radome 21, and a source 22 here of the "swan neck” type, which can turn next arrow 23.
  • the device of the invention allows the adjustment, relative to the vertical plane, of the polarization of a source which is physically and / or visually inaccessible.
  • the device of the invention comprises an angular reference device which is a rocker 24 with mercury contacts 32 installed near the opening of the source 22 whose angular orientation is to be adjusted.
  • the low-cost rocker 24 as shown in FIG. 4 is integrated into the supply of the source 22 and adjusted angularly thereon at the factory.
  • the three output terminals A, B, C of the rocker 24 are connected, using a cable 25 with three conductors, to a connector 26 located at the rear of the antenna in an area accessible to adjustment.
  • a display device 27 which can be an ohmeter or even a flashlight with external contacts.
  • the source 22 is made to rotate, of which the rocker 24 is integral in the positive direction 30 in order to be certain of exceeding the vertical position. It is then checked that the contact AB is closed and the contact AC is open.
  • the source 22 is made to rotate very slowly in the negative direction 31: the angular position corresponding to the opening of the contact AB and the closing of the contact AC is the desired position.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Support Of Aerials (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

L'invention concerne un dispositif de réglage par rapport à un plan de référence de la polarisation d'une antenne comportant une source (22) mobile en rotation (23), ledit dispositif de réglage comportant un dispositif de référence angulaire situé près de l'ouverture de cette source (22), qui est un basculeur (24) à contacts de mercure solidaire de la source (22). Ledit dispositif de réglage comprend un connecteur (26) situé à l'arrière de l'antenne dans une zone accessible au réglage et un câble (25) à plusieurs conducteurs effectuant la liaison électrique entre lesdits contacts et le connecteur (26), de manière à relier électriquement le dispositif de référence à un dispositif de visualisation (27). L'invention concerne en outre un procédé de mise en oeuvre d'un tel dispositif. Application notamment aux antennes de faisceaux hertziens.The invention relates to a device for adjusting with respect to a reference plane the polarization of an antenna comprising a source (22) movable in rotation (23), said adjustment device comprising an angular reference device located near the opening of this source (22), which is a rocker (24) with mercury contacts secured to the source (22). Said adjustment device comprises a connector (26) located at the rear of the antenna in an area accessible to adjustment and a cable (25) with several conductors making the electrical connection between said contacts and the connector (26), so electrically connecting the reference device to a display device (27). The invention further relates to a method of implementing such a device. Application in particular to radio-relay systems.

Description

La présente invention se rapporte à un dispositif de réglage de la polarisation d'une antenne et à son procédé de mise en oeuvre.The present invention relates to a device for adjusting the polarization of an antenna and to its implementation method.

Les performances demandées aux antennes, par exemple de fais­ceaux hertziens, sont de plus en plus élevées. Un point particulier coucourt à l'obtention de cet objectif : Il s'agit du réglage précis de la polarisation par rapport à un plan vertical, réglage qui s'opère par rotation de la source primaire. La référence angulaire de rotation doit alors être prise impérativement sur l'ouverture de la source.The performances required from antennas, for example of radio-relay systems, are increasingly high. There is a particular point in obtaining this objective: This is the precise adjustment of the polarization with respect to a vertical plane, adjustment which is effected by rotation of the primary source. The angular reference of rotation must then be taken imperatively on the opening of the source.

Ce réglage de la verticalité de la polarisation peut s'effectuer très simplement à l'aide d'un niveau placé sur une face de référence à l'arrière de la source, lorsque cette source est accessible, ce qui n'est pas toujours le cas.This adjustment of the verticality of the polarization can be carried out very simply using a level placed on a reference face at the rear of the source, when this source is accessible, which is not always the case. case.

Indépendamment de son manque d'accessibilité, cette référence angulaire peut être totalement inaccessible du point de réglage.Regardless of its lack of accessibility, this angular reference can be completely inaccessible from the adjustment point.

L'invention permet de pallier ces inconvénients.The invention overcomes these drawbacks.

L'invention propose à cet effet un dispositif de réglage, par rapport à un plan de référence, de la polarisation d'une antenne com­portant une source mobile en rotation, ledit dispositif de réglage comportant un dispositif de référence angulaire situé près de l'ouver­ture de cette source, caractérisé en ce que le dispositif de référence angulaire est un basculeur à contacts de mercure solidaire de la sour­ce et en ce que ledit dispositif de réglage comprend un connecteur situé à l'arrière de l'antenne dans une zone accessible au réglage et un câble à plusieurs conducteurs effectuant la liaison électrique entre lesdits contacts et le connecteur, de manière à relier électriquement le dispositif de référence à un dispositif de visualisation.The invention provides for this purpose a device for adjusting, with respect to a reference plane, the polarization of an antenna comprising a source movable in rotation, said adjustment device comprising an angular reference device located near the opening of this source, characterized in that the angular reference device is a rocker with mercury contacts secured to the source and in that said adjustment device comprises a connector located at the rear of the antenna in an area accessible to adjustment and a cable with several conductors making the electrical connection between said contacts and the connector, so as to electrically connect the reference device to a display device.

Plus précisément le basculeur utilisé est un basculeur à trois contacts qui est relié au connecteur par un câble à trois conducteurs.More precisely, the rocker used is a rocker with three contacts which is connected to the connector by a three-conductor cable.

L'invention propose ne outre un procédé de mise en oeuvre d'un tel dispositif qui comporte successivement deux étapes :
- une première étape pendant laquelle on fait tourner la source dans un sens afin qu'un premier contact du basculeur soit fermé et qu'un second contact soit ouvert ;
- une deuxième étape pendant laquelle on fait tourner très lentement la source dans l'autre sens, la position angulaire correspondant à l'ou­verture du premier contact et à la fermeture du second étant la position recherchée.The invention proposes not only a method of implementing such a device which successively comprises two steps:
- a first step during which the source is rotated in one direction so that a first contact of the rocker is closed and a second contact is open;
- A second step during which the source is made to rotate very slowly in the other direction, the angular position corresponding to the opening of the first contact and the closing of the second being the desired position.

Les caractéristiques et avantages de l'invention ressortiront d'ailleurs de la description qui va suivre, à titre d'exemple non limitatif, en référence aux figures sur lesquelles :

  • - les figures 1 et 2 représentent schématiquement deux premiers types d'antennes de l'art connu,
  • - la figure 3 représente schématiquement un troisième type d'antenne de l'art connu muni du dispositif de l'invention,
  • - la figure 4 illustre le fonctionnement du dispositif de l'invention.
The characteristics and advantages of the invention will moreover emerge from the description which follows, by way of nonlimiting example, with reference to the figures in which:
  • FIGS. 1 and 2 schematically represent two first types of antennas in the known art,
  • FIG. 3 schematically represents a third type of antenna of the known art provided with the device of the invention,
  • - Figure 4 illustrates the operation of the device of the invention.

Dans le cas d'une antenne du type Cassegrain tell que représen­tée à la figure 1; la source 10 est située au sommet du réflecteur principal 11, un réflecteur auxiliaire 12 étant également figuré.In the case of a Cassegrain tell antenna as shown in Figure 1; the source 10 is located at the top of the main reflector 11, an auxiliary reflector 12 also being shown.

De courte longueur, cette source 10 est très rigide et sa partie alimentation est directement accessible à l'arrière de l'antenne. Dans ces conditions le réglage de la verticalité de la polarisation peut s'effectuer très simplement à l'aide d'un niveau placé sur une face de référence 13 à l'arrière de cette source 10, en la faisant tourner selon la direction 14.Of short length, this source 10 is very rigid and its supply part is directly accessible at the rear of the antenna. Under these conditions, the verticality of the polarization can be adjusted very simply using a level placed on a reference face 13 at the rear of this source 10, by rotating it in the direction 14.

Cette facilité de réglage ne se trouve pas dans le cas d'antennes avec source 16 au foyer, telle que représentée à la figure 2.This ease of adjustment is not found in the case of antennas with source 16 at the focus, as shown in FIG. 2.

Pour une question pratique d'accessibilité la commande de rota­tion 15 de la source 16, ici du type "à col de cygne", doit toujours pouvoir s'effectuer à l'arrière de l'antenne ; par contre, la référen­ce angulaire 17 de verticalité doit rester au foyer du réflecteur 18 et ne peut être mécaniquement reportée avec précision au point de réglage 19.For a practical question of accessibility, the rotation control 15 of the source 16, here of the "swan neck" type, must always be able to be carried out at the rear of the antenna; on the other hand, the angular reference 17 of verticality must remain at the focus of the reflector 18 and cannot be mechanically transferred with precision to the adjustment point 19.

Indépendamment de son manque d'accessibilité, la référence angu­laire peut être totalement invisible du point de réglage 19; c'est le cas d'une antenne radomée, telle que représentée à la figure 3. Une telle antenne comporte un réflecteur principal 20 muni d'un radôme 21, et une source 22 ici de type "à col de cygne", qui peut tourner suivant la flèche 23.Regardless of its lack of accessibility, the angular reference can be completely invisible from the set point 19; this is the case of a radomated antenna, as represented in FIG. 3. Such an antenna comprises a main reflector 20 provided with a radome 21, and a source 22 here of the "swan neck" type, which can turn next arrow 23.

La dispositif de l'invention permet le réglage, par rapport au plan vertical, de la polarisation d'une source inaccessible matériel­lement et/ou visuellement. En effet le dispositif de l'invention comprend un dispositif de référence angulaire qui est un basculeur 24 à contacts de mercure 32 installé près de l'ouverture de la source 22 dont on veut régler l'orientation angulaire.The device of the invention allows the adjustment, relative to the vertical plane, of the polarization of a source which is physically and / or visually inaccessible. Indeed, the device of the invention comprises an angular reference device which is a rocker 24 with mercury contacts 32 installed near the opening of the source 22 whose angular orientation is to be adjusted.

Le basculeur 24 tel que représenté à la figure 4 de faible coût, est intégré dans la fourniture de la source 22 et réglé angulairement sur celle-ci en usine.The low-cost rocker 24 as shown in FIG. 4 is integrated into the supply of the source 22 and adjusted angularly thereon at the factory.

Les trois bornes de sortie A, B, C du basculeur 24 sont reliés, à l'aide d'un câble 25 à trois conducteurs, à un connecteur 26 situé à l'arrière de l'antenne dans une zône accessible au réglage. En cet endroit, le repérage du court-circuit entre bornes du basculeur 24 peut se faire très simplement à l'aide d'un dispositif de visualisa­tion 27 qui peut être un ohmètre ou même une lampe de poche à contacts extérieurs.The three output terminals A, B, C of the rocker 24 are connected, using a cable 25 with three conductors, to a connector 26 located at the rear of the antenna in an area accessible to adjustment. In this place, the identification of the short circuit between terminals of the rocker 24 can be done very simply using a display device 27 which can be an ohmeter or even a flashlight with external contacts.

Pour effectuer le réglage, comme représenté à la figure 4 :
- dans une première étape on fait tourner la source 22 dont est solidaire le basculeur 24 dans le sens positif 30 afin d'être certain de dépasser la position verticale. On vérifie alors que le contact AB est fermé et le contact AC est ouvert.
- dans une deuxième étape on fait tourner très lentement la source 22 dans le sens négatif 31 : la position angulaire correspon­dant à l'ouverture du contact AB et à la fermeture du contact AC est la position recherchée.To make the adjustment, as shown in Figure 4:
- In a first step, the source 22 is made to rotate, of which the rocker 24 is integral in the positive direction 30 in order to be certain of exceeding the vertical position. It is then checked that the contact AB is closed and the contact AC is open.
- In a second step, the source 22 is made to rotate very slowly in the negative direction 31: the angular position corresponding to the opening of the contact AB and the closing of the contact AC is the desired position.

En cas de vibrations génantes sur l'antenne provenant par exem­ple de rafales de vent très importantes les opérations décrites ci-dessus peuvent être recommencées plusieurs fois pour optimiser le résultat.In the event of annoying vibrations on the antenna, for example from very strong gusts of wind, the operations described above can be repeated several times to optimize the result.

Il est bien entendu que la présente invention n'a été décrite et représentée qu'à titre d'exemple préférentiel et que l'on pourra rem­placer ses éléments constitutifs par des éléments équivalents sans pour autant, sortir du cadre de l'invention.It is understood that the present invention has only been described and shown as a preferred example and that its constituent elements can be replaced by equivalent elements without departing from the scope of the invention.

Ainsi le dispositif de réglage de l'invention a été illustré avec l'antenne représentée à la figure 3, mais il aurait tout aussi bien pu être utilisé avec l'antenne représentée à la figure 2.Thus the adjustment device of the invention has been illustrated with the antenna shown in FIG. 3, but it could just as easily have been used with the antenna shown in FIG. 2.

Claims (3)

1/ Dispositif de réglage, par rapport à un plan de référence, de la polarisation d'une antenne comportant une source (22) mobile en rota­tion (23), ledit dispositif de réglage comportant un dispositif de référence angulaire situé près de l'ouverture de cette source (22), caractérisé en ce que le dispositif de référence angulaire est un basculeur (24) à contacts de mercure solidaire de la source (22) et en ce que ledit dispositif de réglage comprend un connecteur (26) situé à l'arrière de l'antenne dans une zone accessible au réglage et un câ­ble (25) à plusieurs conducteurs effectuant la liaison électrique entre les sorties (A,B,C) dudit basculeur (24) et le connecteur (26), de manière à relier électriquement le dispositif de référence à un dispositif de visualisation (27).1 / Device for adjusting, with respect to a reference plane, the polarization of an antenna comprising a source (22) movable in rotation (23), said adjustment device comprising an angular reference device located near the opening from this source (22), characterized in that the angular reference device is a rocker (24) with mercury contacts secured to the source (22) and in that said adjustment device comprises a connector (26) located at the rear of the antenna in an area accessible to adjustment and a cable (25) with several conductors making the electrical connection between the outputs (A, B, C) of said rocker (24) and the connector (26), so as to electrically connect the reference device to a display device (27). 2/ Dispositif de réglage selon la revendication 1, caractérisé en ce qu'il comprend un basculeur (24) à trois sorties, relié au connecteur (26) par un câble (25) à trois conducteurs.2 / An adjustment device according to claim 1, characterized in that it comprises a rocker (24) with three outputs, connected to the connector (26) by a cable (25) with three conductors. 3/ Procédé de mise en oeuvre du dispositif de réglage selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que :
- dans une première étape on fait tourner la source dans un sens (30) afin qu'un premier contact (AB) du basculeur soit fermé et qu'un second contact (AC) soit ouvert ;
- dans une deuxième étape, on fait tourner très lentement la source (22) dans l'autre sens, la position angulaire correspondant à l'ouverture du premier contact (AB) et à la fermeture du second (AC) étant la position recherchée.3 / A method of implementing the adjustment device according to any one of claims 1 or 2, characterized in that:
- In a first step, the source is rotated in one direction (30) so that a first contact (AB) of the rocker is closed and a second contact (AC) is open;
- In a second step, the source (22) is made to rotate very slowly in the other direction, the angular position corresponding to the opening of the first contact (AB) and to the closing of the second (AC) being the desired position.
EP87101837A 1986-02-18 1987-02-10 Device for adjusting the polarization of an antenna and method for using such a device Expired - Lifetime EP0235623B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8602170A FR2594600B1 (en) 1986-02-18 1986-02-18 DEVICE FOR ADJUSTING THE POLARIZATION OF AN ANTENNA AND METHOD FOR IMPLEMENTING SUCH A DEVICE
FR8602170 1986-02-18

Publications (2)

Publication Number Publication Date
EP0235623A1 true EP0235623A1 (en) 1987-09-09
EP0235623B1 EP0235623B1 (en) 1990-09-26

Family

ID=9332234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101837A Expired - Lifetime EP0235623B1 (en) 1986-02-18 1987-02-10 Device for adjusting the polarization of an antenna and method for using such a device

Country Status (8)

Country Link
US (1) US4837583A (en)
EP (1) EP0235623B1 (en)
JP (1) JPS62198204A (en)
CA (1) CA1257693A (en)
DE (1) DE3765136D1 (en)
FR (1) FR2594600B1 (en)
IL (1) IL81604A (en)
NO (1) NO169514C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2623942A1 (en) * 1987-12-01 1989-06-02 Messerschmitt Boelkow Blohm DEVICE FOR ADJUSTING THE POLARIZATION PLAN IN AN ANTENNA POWER SUPPLY SYSTEM
GB2225902A (en) * 1988-10-14 1990-06-13 Cambridge Computer Dish antenna
EP0795212A1 (en) * 1995-10-03 1997-09-17 Netro Corporation Burst-error resistant atm microwave link and network

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685131B1 (en) * 1991-12-11 1994-05-27 Telediffusion Fse FIXED REFLECTOR RECEIVING ANTENNA FOR MULTIPLE SATELLITE BEAMS.
DE9203444U1 (en) * 1992-03-14 1992-05-07 Maksan, Zoran, Biograd Na Moru TV satellite antenna
DE4307675A1 (en) * 1992-03-14 1993-09-16 Zoran Maksan Satellite TV receiver for multiple satellites - has fixed dish with feed-horn mounted in such way to allow adjustment to receive signals from one or more nearby satellites.
US7129903B2 (en) * 2001-09-27 2006-10-31 The Boeing Company Method and apparatus for mounting a rotating reflector antenna to minimize swept arc

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786472A (en) * 1971-10-07 1974-01-15 F Scopacasa Electric level
US4085375A (en) * 1976-11-18 1978-04-18 The Singer Company Combined angular displacement measuring system and multiplier
DE2812341A1 (en) * 1978-03-21 1979-09-27 Siemens Ag Waveguide radiator feeding reflector aerials - has feed system determining polarisation plane rotatably mounted in rear wall of stationary radiator
EP0026001A1 (en) * 1979-09-25 1981-04-01 Siemens Aktiengesellschaft Antenna for direct reception from satellites
WO1983003243A1 (en) * 1982-03-11 1983-09-29 Wurdack Gerard A & Ass Antenna rotator controller

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5374342A (en) * 1976-12-15 1978-07-01 Fujitsu Ltd Parabola antenna device
NL180623C (en) * 1977-01-12 1987-08-17 Philips Nv EXPOSURE FOR AN AERIAL.
US4654670A (en) * 1985-02-27 1987-03-31 Tracker Mounts Inc. Tracker mount assembly for microwave dishes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786472A (en) * 1971-10-07 1974-01-15 F Scopacasa Electric level
US4085375A (en) * 1976-11-18 1978-04-18 The Singer Company Combined angular displacement measuring system and multiplier
DE2812341A1 (en) * 1978-03-21 1979-09-27 Siemens Ag Waveguide radiator feeding reflector aerials - has feed system determining polarisation plane rotatably mounted in rear wall of stationary radiator
EP0026001A1 (en) * 1979-09-25 1981-04-01 Siemens Aktiengesellschaft Antenna for direct reception from satellites
WO1983003243A1 (en) * 1982-03-11 1983-09-29 Wurdack Gerard A & Ass Antenna rotator controller

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2623942A1 (en) * 1987-12-01 1989-06-02 Messerschmitt Boelkow Blohm DEVICE FOR ADJUSTING THE POLARIZATION PLAN IN AN ANTENNA POWER SUPPLY SYSTEM
GB2225902A (en) * 1988-10-14 1990-06-13 Cambridge Computer Dish antenna
EP0795212A1 (en) * 1995-10-03 1997-09-17 Netro Corporation Burst-error resistant atm microwave link and network
EP0795212A4 (en) * 1995-10-03 1998-09-09 Netro Corp Burst-error resistant atm microwave link and network

Also Published As

Publication number Publication date
NO169514B (en) 1992-03-23
NO870595L (en) 1987-08-19
CA1257693A (en) 1989-07-18
US4837583A (en) 1989-06-06
IL81604A0 (en) 1987-09-16
IL81604A (en) 1990-07-26
EP0235623B1 (en) 1990-09-26
FR2594600A1 (en) 1987-08-21
NO169514C (en) 1992-07-01
JPS62198204A (en) 1987-09-01
NO870595D0 (en) 1987-02-16
FR2594600B1 (en) 1988-04-15
DE3765136D1 (en) 1990-10-31

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