EP0514251A1 - Microwave mobile waveguide connection - Google Patents

Microwave mobile waveguide connection Download PDF

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Publication number
EP0514251A1
EP0514251A1 EP92401286A EP92401286A EP0514251A1 EP 0514251 A1 EP0514251 A1 EP 0514251A1 EP 92401286 A EP92401286 A EP 92401286A EP 92401286 A EP92401286 A EP 92401286A EP 0514251 A1 EP0514251 A1 EP 0514251A1
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EP
European Patent Office
Prior art keywords
rectangular
flanges
rigid
elements
rotary connector
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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
EP92401286A
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German (de)
French (fr)
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EP0514251B1 (en
Inventor
Laurent Portrait
Pierre Blanchard
Joel Soquet
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Thales SA
Original Assignee
Thomson CSF SA
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/06—Movable joints, e.g. rotating joints
    • H01P1/062—Movable joints, e.g. rotating joints the relative movement being a rotation
    • H01P1/066—Movable joints, e.g. rotating joints the relative movement being a rotation with an unlimited angle of rotation
    • H01P1/067—Movable joints, e.g. rotating joints the relative movement being a rotation with an unlimited angle of rotation the energy being transmitted in only one line located on the axis of rotation

Definitions

  • the present invention relates to a mobile microwave link between two electronic equipment, one of which can be moved between two extreme positions, for example a microwave link between a radar transceiver and a retractable radar antenna in a silo.
  • Microwave energy transport is usually carried out by means of coaxials or pressurized or unpressurized waveguides. These can carry a lot of power with minimal losses. Most of them are rigid copper metal or light alloy tubes. Others are flexible but, in this case, remain fragile.
  • the object of the present invention is to provide a mobile, mechanically reliable microwave link which allows a large number of operations and which can transport power with a minimum of losses in at least one of the extreme displacement positions.
  • Its subject is a mobile microwave guide with waveguide connecting fixed electronic equipment to a mobile electronic equipment that can be moved between two positions, one of which is operational.
  • This microwave link comprises a chain of at least two rigid rectangular waveguide elements hinged together, at their ends, using a rotary connector formed by two flanges with rectangular window fitted and movable in rotation. one in relation to the other.
  • the rotary connector has two operational positions at 180 ° from each other which correspond to a coincidence of the rectangular windows of its flanges and in which it can transmit microwave energy. It takes one of these operational positions when the mobile electronic equipment is in the working position.
  • the chain connects the mobile electronic equipment to a fixed point which is integral with the fixed electronic equipment and arranged by side of the path of the mobile electronic equipment, halfway between the two limit positions of displacement of the latter, and takes for each limit position of the mobile electronic equipment a configuration in which its rotary couplings are stopped in operational positions where the rectangular windows of their flanges are in coincidence and allow a transmission of microwave energy.
  • FIG. 1 shows the radar installation with its antenna 1 erected above a silo 2 and its transmission 3 and reception 4 equipment placed in premises adjoining the base of silo 2.
  • Figure 2 shows the same radar installation with its antenna 1 retracted inside the silo.
  • the microwave connection of the antenna 1 to the transmitting 3 and receiving 4 equipment of the radar must allow the movements of the antenna 1 in its silo 2 and its operation when it is erected outside the latter. It is carried out using a mobile microwave link which joins the base of a mast 6 supporting the antenna 1 on an elevating platform 7 at a fixed point located halfway up the wall of the silo 2 where lead to fixed rectangular waveguides coming from the transmitting 3 and receiving 4 radar equipment.
  • This mobile microwave link is represented in its two extreme positions, respectively in solid lines and in broken lines, under the reference 11, in FIG. 3 which shows the interior of the silo 2 with the antenna 1 mounted on its mast 6 shown at both in its erected position and in its retracted position.
  • FIG. 3 shows the interior of the silo 2 with the antenna 1 mounted on its mast 6 shown at both in its erected position and in its retracted position.
  • the elevating platform 7 which supports the mast 6 of the antenna 1 and which moves along a pillar 8 containing an elevating mechanism has not been shown.
  • This mobile microwave link 11 connects the ends of rectangular waveguides 12 integral with the base of the mast 6 of the antenna 1 to the ends of fixed rectangular waveguides 9 coming from the transmission and reception equipment and ending in a fixed point 10 located at mid-height on the wall of the silo 2. It is composed, as it appears more clearly in FIG. 4, of a chain of three rigid rectangular waveguide elements 13, 14, 15 hinged together as well as the rectangular waveguides 9 and 12 using four articulations 16, 17, 18, 19.
  • the rigid elements 13, 14, 15 each consist of an assembly of two parallel sections of guide rectangular waves dedicated to the simultaneous transmission of the sum and difference channels of a monopulse system.
  • the joints 16, 17, 18, 19 consist of two rotary connections ensuring the continuity of each of the two rectangular waveguides of the rigid elements 13, 14, 15.
  • FIG. 5 shows a longitudinal section of a simple rotary connector used to articulate the rigid elements of the chain for a sum or difference channel.
  • This rotary connector for rectangular waveguide comprises two flanges with rectangular window, one flat, the other 21 with trap nested and movable in rotation relative to each other.
  • the flat flange 20 has, around its rectangular window, a circular plate 22 which is extended externally by a ring 23 giving the end of the flat flange 20, the shape of a socket.
  • the trap flange has around its rectangular window a cylindrical core 24 adapted to the internal dimensions of the ring 23, which fits into the socket formed by the end of the flat flange 20 and which comprises, on its face facing the flange flat 20, a peripheral groove 25 constituting a quarter wave trap.
  • the orifice of the ring 23 of the flat flange is provided with an internal thread allowing the screwing of a nut 26 trapping the cylindrical core 24 of the trap flange 21 in the socket of the flat flange 20.
  • An elastic washer 27 interposed between the nut 26 and the cylindrical core of the trap flange 21 makes it possible to press the latter against the circular plate 22 of the flat flange 20.
  • Friction pieces 28, 29 inserted in the sleeve of the flat flange 20, at the periphery of the cylindrical core 24 of the trap flange 21 allow both centering and frictionally rotating the two flanges 20 and 21 relative to one another.
  • a central seal 30 ensures the sealing in the case where the internal volume of the flanges 20 and 21 and the rectangular waveguides which are connected to them is pressurized in order to allow the transport of a maximum of microwave energy.
  • Each flange 20 or 21 is extended by a rectangular waveguide portion provided with an elbow 31, 32 bent at 90 ° in one of the planes of the great or the small width of the rectangular waveguide so that the rotation between the flanges 20, 21 of a rotary connector translates, for the rigid elements of rectangular waveguide which are connected to it, by a pivoting movement of transverse axis.
  • the rotary connector which has just been described can transmit microwave energy when the rectangular windows of its flanges are in coincidence. This takes place for two so-called operational positions which are 180 ° from one another and which correspond for rigid elements articulated by the rotary connector to precise relative positions which depend on the planes of curvature of the elbows.
  • Figures 6 and 7 show in perspective, in two operational positions, a rotary connector whose elbows 31, 32 are bent at 90 ° in a plane parallel to the smallest width of the rectangular waveguide.
  • first operational position of FIG. 6 where the rectangular windows of the flat and trap flanges are in coincidence
  • the two elbows 31 and 32 oriented in the same plane cause the two rigid guide elements to align, in extension 'rectangular waves articulated by the rotary connector.
  • the two elbows 31 and 32 oriented in the same plane cause the two rigid elements to be aligned, folded side by side. of rectangular waveguides articulated by the rotary connector.
  • the two bends of a rotary connector can also be bent at 90 ° in a plane parallel to the large width of the rectangular waveguide. As before, they cause, for the two operational positions of the rotary connector, an alignment, extension or folded, of the two rectangular waveguide elements articulated by the rotary connector.
  • the two bends of a rotary connector can also be bent at 90 °, one in a plane parallel to the small width of the rectangular waveguide, the other in a plane parallel to the large width of the rectangular waveguide . They then cause, for the two operational positions of the rotary coupling, to square either in one direction or in the other, of the two rectangular waveguide elements articulated by the rotary connector.
  • the chain of three rigid articulated elements 13, 14, 15 described above in relation to FIG. 4 takes an L or ⁇ configuration when the antenna is in the extreme retracted or erected position, its rigid elements 13, 14, 15 coming two by two in alignment or at right angles with, each time rotary couplings in operational positions to allow, in these situations, the exchange of microwave energy between the antenna and the transmission and reception equipment.
  • the end joints 16, 19 of the chain as well as the joint 18 which connect elements placed at right angles when the antenna is in an extreme retraction or erection situation are each formed by two rotary connectors of the same transverse axis. of the type with 90 ° bends in two orthogonal planes, one parallel to the small width and the other to the large width of the rectangular waveguide.
  • the articulation 17 of the chain which connects elements placed in alignment when the antenna is in an extreme retraction or erection situation is formed by two rotary connectors of the same transverse axis of the type with elbows bent at 90 ° in the same plane parallel to either the large or the small width of the rectangular waveguide.
  • the articulation 17 which connects the rigid elements 13, 14 is provided with a mechanical spring-return system tending to keep the rigid elements 13 and 14 aligned and the end joint 19 is provided with a motor tending to replace the rigid element 15 at right angles to the rigid element 14 when the antenna is erected in the operating position out of his silo.
  • FIG. 8 illustrates the deformations undergone by the chain constituting the mobile microwave link when the antenna goes from an extreme retraction position to an extreme erection position and vice versa.
  • the chain of the mobile microwave link When the antenna is retracted in its silo, the chain of the mobile microwave link has an L-shaped configuration with its rotary connectors in operational positions allowing an exchange of microwave energy between the antenna and the transmission and reception equipment for maintenance operations.
  • the rigid element 13 articulated at the fixed point 10 hangs vertically as does the rigid element 14 which is articulated to it by the articulation 17 provided with the mechanical spring-return system.
  • the rigid element 15 articulated at the base of the antenna mast and to the rigid element 14 is meanwhile, placed horizontally at right angles to the rigid element 14 and to the rectangular waveguides 12 integral with the base antenna mast.
  • the motor of the articulation 19 is disengaged allowing the rigid element 15 to take various inclined positions imposed by the traction of the antenna and the action of gravity on the three elements rigid 13, 14, 15 of the chain. During this movement, the rigid element 14 tilts and passes through the horizontal before being partially turned over while the rigid element 13 tilts to a position close to the horizontal.
  • the motor of the articulation 19 is actuated to raise the rigid element 15 horizontally and impose a rigid position on the rigid elements 13 and 14 so as to obtain a configuration in which all the rotary joints of the joints are again in operational positions allowing the exchange of microwave energy between the antenna and the transmission and reception equipment.

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  • Waveguide Connection Structure (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Cette liaison hyperfréquence relie un équipement électronique fixe à un équipement électronique mobile qui peut être déplacé entre deux positions extrêmes dont l'une au moins est une position de fonctionnement. C'est par exemple une liaison entre un émetteur-récepteur de radar et une antenne de radar escamotable dans un silo. Elle est constituée d'une chaîne d'éléments rigides de guide d'ondes rectangulaire articulés à leurs extrémités au moyen d'articulations comportant au moins un raccord rotatif formé de deux brides (20, 21) à fenêtre rectangulaire, emboîtées et mobiles en rotation l'une par rapport à l'autre. Ce raccord rotatif présente deux positions opérationnelles à 180° l'une de l'autre où il peut transmettre de l'énergie hyperfréquence et où les fenêtres rectangulaires de ses brides (20, 21) sont en coïncidence, et prend l'une de ces positions opérationnelles lorsque l'équipement électronique mobile est en position de fonctionnement.This microwave link connects fixed electronic equipment to mobile electronic equipment which can be moved between two extreme positions, at least one of which is an operating position. It is for example a link between a radar transceiver and a retractable radar antenna in a silo. It consists of a chain of rigid rectangular waveguide elements hinged at their ends by means of hinges comprising at least one rotary coupling formed of two flanges (20, 21) with a rectangular window, interlocked and movable in rotation. one in relation to the other. This rotary joint has two operational positions 180° apart where it can transmit microwave energy and where the rectangular windows of its flanges (20, 21) are in coincidence, and takes one of these operational positions when the mobile electronic equipment is in the operational position.

Description

La présente invention concerne une liaison hyperfréquence mobile entre deux équipements électroniques dont l'un peut être déplacé entre deux positions extrêmes, par exemple un liaison hyperfréquence entre un émetteur-récepteur de radar et une antenne de radar escamotable dans un silo.The present invention relates to a mobile microwave link between two electronic equipment, one of which can be moved between two extreme positions, for example a microwave link between a radar transceiver and a retractable radar antenna in a silo.

Le transport d'énergie hyperfréquence s'effectue habituellement au moyen de coaxiaux ou de guides d'ondes pressurisés ou non. Ces derniers peuvent transporter beaucoup de puissance avec un minimum de pertes. La plupart d'entre eux sont des tubes rigides en métal cuivreux ou en alliage léger. D'autres sont souples mais, dans ce cas, demeurent fragiles.Microwave energy transport is usually carried out by means of coaxials or pressurized or unpressurized waveguides. These can carry a lot of power with minimal losses. Most of them are rigid copper metal or light alloy tubes. Others are flexible but, in this case, remain fragile.

Il est connu de réaliser une liaison hyperfréquence mobile à l'aide de coaxiaux souples mais la puissance transmise est limitée et il y a des pertes importantes.It is known to make a mobile microwave link using flexible coaxials but the transmitted power is limited and there are significant losses.

Il est aussi connu de réaliser une liaison hyperfréquence mobile à l'aide d'un guide d'ondes rectangulaire souple mais les pertes sont très élevées et la fiabilité réduite.It is also known to make a mobile microwave link using a flexible rectangular waveguide but the losses are very high and the reliability reduced.

On peut aussi utiliser des éléments rigides de guide d'ondes rectangulaire reliés entre eux par des guides d'ondes rectangulaires souples mais on a toujours des pertes élevées et surtout une fiabilité réduite dans le cas d'un nombre important de déplacements.It is also possible to use rigid elements of rectangular waveguide connected to one another by flexible rectangular waveguides but there is always high losses and above all reduced reliability in the case of a large number of displacements.

La présente invention a pour but une liaison hyperfréquence mobile, mécaniquement fiable, qui permette un nombre important de manoeuvres et qui puisse transporter de la puissance avec un minimum de pertes dans l'une au moins des positions extrêmes de déplacement.The object of the present invention is to provide a mobile, mechanically reliable microwave link which allows a large number of operations and which can transport power with a minimum of losses in at least one of the extreme displacement positions.

Elle a pour objet une liaison hyperfréquence mobile à guide d'ondes reliant un équipement électronique fixe à un équipement électronique mobile pouvant être déplacé entre deux positions dont une de fonctionnement. Cette liaison hyperfréquence comporte une chaîne d'au moins deux éléments rigides de guide d'ondes rectangulaire articulés entre eux, à leurs extrémités, à l'aide d'un raccord rotatif formé de deux brides à fenêtre rectangulaire emboîtées et mobiles en rotation l'une par rapport à l'autre. Le raccord rotatif présente deux positions opérationnelles à 180° l'une de l'autre qui correspondent à une mise en coïncidence des fenêtres rectangulaires de ses brides et dans lesquelles il peut transmettre de l'énergie hyperfréquence. Il prend l'une de ces positions opérationnelles lorsque l'équipement électronique mobile est en position de travail.Its subject is a mobile microwave guide with waveguide connecting fixed electronic equipment to a mobile electronic equipment that can be moved between two positions, one of which is operational. This microwave link comprises a chain of at least two rigid rectangular waveguide elements hinged together, at their ends, using a rotary connector formed by two flanges with rectangular window fitted and movable in rotation. one in relation to the other. The rotary connector has two operational positions at 180 ° from each other which correspond to a coincidence of the rectangular windows of its flanges and in which it can transmit microwave energy. It takes one of these operational positions when the mobile electronic equipment is in the working position.

Selon un mode préféré de réalisation, la chaîne relie l'équipement électronique mobile à un point fixe qui est solidaire de l'équipement électronique fixe et disposé par côté de la trajectoire de l'équipement électronique mobile, à mi-chemin des deux positions limites de déplacement de ce dernier, et prend pour chaque position limite de l'équipement électronique mobile une configuration dans laquelle ses raccords rotatifs sont arrêtés dans des positions opérationnelles où les fenêtres rectangulaires de leurs brides sont en coïncidence et permettent une transmission d'énergie hyperfréquence.According to a preferred embodiment, the chain connects the mobile electronic equipment to a fixed point which is integral with the fixed electronic equipment and arranged by side of the path of the mobile electronic equipment, halfway between the two limit positions of displacement of the latter, and takes for each limit position of the mobile electronic equipment a configuration in which its rotary couplings are stopped in operational positions where the rectangular windows of their flanges are in coincidence and allow a transmission of microwave energy.

D'autres caractéristiques et avantages de l'invention ressortiront de la description d'un mode de réalisation. Cette description sera faite ci-après en regard du dessin dans lequel :

  • une figure 1 est une vue en perspective éclatée d'une installation radar avec son antenne érigée au dessus d'un silo et ses équipements d'émission et de réception placés dans des locaux attenant à la base du silo ;
  • une figure 2 est une vue en perspective éclatée de l'installation radar précédente avec son antenne escamotée dans le silo ;
  • une figure 3 est une vue partielle en perspective illustrant l'intérieur du silo de l'installation radar vue aux figures 1 et 2 ;
  • une figure 4 est une vue en perspective de la liaison hyperfréquence mobile équipant l'installation radar vue aux figures précédentes ;
  • une figure 5 est une coupe longitudinale d'un raccord rotatif simple utilisé dans la liaison hyperfréquence mobile représentée aux figures 3 et 4 ;
  • des figures 6 et 7 sont des vues en perspective du raccord rotatif de la figure 5 dans ses deux positions opérationnelles où il peut transmettre de l'énergie hyperfréquence et
  • une figure 8 illustrant les déformations subies par la liaison hyperfréquence mobile représentée aux figures 3 et 4 lorsque l'antenne passe de sa position d'escamotage à sa position d'érection hors du silo.
Other characteristics and advantages of the invention will emerge from the description of an embodiment. This description will be made below with reference to the drawing in which:
  • FIG. 1 is an exploded perspective view of a radar installation with its antenna erected above a silo and its transmission and reception equipment placed in premises adjoining the base of the silo;
  • Figure 2 is an exploded perspective view of the previous radar installation with its antenna retracted into the silo;
  • Figure 3 is a partial perspective view illustrating the interior of the silo of the radar installation seen in Figures 1 and 2;
  • FIG. 4 is a perspective view of the mobile microwave link equipping the radar installation seen in the preceding figures;
  • Figure 5 is a longitudinal section of a simple rotary connector used in the mobile microwave link shown in Figures 3 and 4;
  • Figures 6 and 7 are perspective views of the rotary connector of Figure 5 in its two operational positions where it can transmit microwave energy and
  • FIG. 8 illustrating the deformations undergone by the mobile microwave link shown in FIGS. 3 and 4 when the antenna passes from its retracting position to its erection position outside the silo.

Dans le dessin, les mêmes éléments ont été indexés sur les différentes figures par les mêmes références.In the drawing, the same elements have been indexed in the different figures by the same references.

On va décrire ci-après une liaison hyperfréquence mobile, double, à deux guides d'onde utilisée, dans un système monopulse, pour raccorder les voles somme et différence d'une antenne de radar escamotable dans un silo avec des équipements d'émission et de réception de radar placés dans des locaux attenant au silo.We will describe below a mobile microwave link, double, with two waveguides used, in a monopulse system, to connect the sum and difference volts of a retractable radar antenna in a silo with transmission equipment and radar reception units located in premises adjacent to the silo.

La figure 1 montre l'installation radar avec son antenne 1 érigée au-dessus d'un silo 2 et ses équipements d'émission 3 et de réception 4 placés dans des locaux attenant à la base du silo 2.FIG. 1 shows the radar installation with its antenna 1 erected above a silo 2 and its transmission 3 and reception 4 equipment placed in premises adjoining the base of silo 2.

La figure 2 montre la même installation radar avec son antenne 1 escamotée à l'intérieur du silo.Figure 2 shows the same radar installation with its antenna 1 retracted inside the silo.

Le raccordement hyperfréquence de l'antenne 1 aux équipements d'émission 3 et de réception 4 du radar doit permettre les déplacements de l'antenne 1 dans son silo 2 et son fonctionnement lorsqu'elle est érigée en dehors de ce dernier. Il est réalisé à l'aide d'une liaison hyperfréquence mobile qui joint la base d'un mât 6 supportant l'antenne 1 sur une plate-forme élévatrice 7 à un point fixe situé à mi-hauteur de la paroi du silo 2 où aboutissent des guides d'ondes rectangulaires fixes provenant des équipements d'émission 3 et de réception 4 du radar.The microwave connection of the antenna 1 to the transmitting 3 and receiving 4 equipment of the radar must allow the movements of the antenna 1 in its silo 2 and its operation when it is erected outside the latter. It is carried out using a mobile microwave link which joins the base of a mast 6 supporting the antenna 1 on an elevating platform 7 at a fixed point located halfway up the wall of the silo 2 where lead to fixed rectangular waveguides coming from the transmitting 3 and receiving 4 radar equipment.

Cette liaison hyperfréquence mobile est représentée dans ses deux positions extrêmes, respectivement en traits pleins et en traits interrompus, sous la référence 11, dans la figure 3 qui montre l'intérieur du silo 2 avec l'antenne 1 montée sur son mât 6 représentée à la fois dans sa position érigée et dans sa position escamotée. Pour une meilleure clarté, la plate-forme élévatrice 7 qui supporte le mât 6 de l'antenne 1 et qui se déplace le long d'un piller 8 contenant un mécanisme élévateur n'a pas été représentée.This mobile microwave link is represented in its two extreme positions, respectively in solid lines and in broken lines, under the reference 11, in FIG. 3 which shows the interior of the silo 2 with the antenna 1 mounted on its mast 6 shown at both in its erected position and in its retracted position. For better clarity, the elevating platform 7 which supports the mast 6 of the antenna 1 and which moves along a pillar 8 containing an elevating mechanism has not been shown.

Cette liaison hyperfréquence mobile 11 relie des extrémités de guides d'ondes rectangulaires 12 solidaires de la base du mât 6 de l'antenne 1 aux extrémités de guides d'ondes rectangulaires fixes 9 provenant des équipements d'émission et de réception et aboutissant en un point fixe 10 situé à mi-hauteur sur la paroi du silo 2. Elle est composée, comme cela apparaît plus clairement sur la figure 4 d'une chaîne de trois éléments rigides de guide d'ondes rectangulaire 13, 14, 15 articulés entre eux ainsi qu'aux guides d'ondes rectangulaires 9 et 12 à l'aide de quatre articulations 16, 17, 18, 19. Les éléments rigides 13, 14, 15 sont constitués chacun d'un assemblage de deux sections parallèles de guide d'ondes rectangulaires dédiées à la transmission simultanée des voies somme et différence d'un système monopulse. Les articulations 16, 17, 18, 19 sont constituées de deux raccords rotatifs assurant la continuité de chacun des deux guides d'ondes rectangulaires des éléments rigides 13, 14, 15.This mobile microwave link 11 connects the ends of rectangular waveguides 12 integral with the base of the mast 6 of the antenna 1 to the ends of fixed rectangular waveguides 9 coming from the transmission and reception equipment and ending in a fixed point 10 located at mid-height on the wall of the silo 2. It is composed, as it appears more clearly in FIG. 4, of a chain of three rigid rectangular waveguide elements 13, 14, 15 hinged together as well as the rectangular waveguides 9 and 12 using four articulations 16, 17, 18, 19. The rigid elements 13, 14, 15 each consist of an assembly of two parallel sections of guide rectangular waves dedicated to the simultaneous transmission of the sum and difference channels of a monopulse system. The joints 16, 17, 18, 19 consist of two rotary connections ensuring the continuity of each of the two rectangular waveguides of the rigid elements 13, 14, 15.

La figure 5 montre une coupe longitudinale d'un raccord rotatif simple servant d'articulation aux éléments rigides de la chaîne pour une voie somme ou différence. Ce raccord rotatif pour guide d'ondes rectangulaire comporte deux brides à fenêtre rectangulaire l'une 20 plate, l'autre 21 à piège emboîtées et mobiles en rotation l'une par rapport à l'autre. La bride plate 20 présente, autour de sa fenêtre rectangulaire, un plateau circulaire 22 qui se prolonge extérieurement par une bague 23 donnant à l'extrémité de la bride plate 20, la forme d'une douille. La bride piège présente autour de sa fenêtre rectangulaire un noyau cylindrique 24 adapté aux dimensions internes de la bague 23, qui s'emboîte dans la douille formée par l'extrémité de la bride plate 20 et qui comporte, sur sa face tournée vers la bride plate 20, une rainure périphérique 25 constituant un piège quart d'onde.Figure 5 shows a longitudinal section of a simple rotary connector used to articulate the rigid elements of the chain for a sum or difference channel. This rotary connector for rectangular waveguide comprises two flanges with rectangular window, one flat, the other 21 with trap nested and movable in rotation relative to each other. The flat flange 20 has, around its rectangular window, a circular plate 22 which is extended externally by a ring 23 giving the end of the flat flange 20, the shape of a socket. The trap flange has around its rectangular window a cylindrical core 24 adapted to the internal dimensions of the ring 23, which fits into the socket formed by the end of the flat flange 20 and which comprises, on its face facing the flange flat 20, a peripheral groove 25 constituting a quarter wave trap.

L'orifice de la bague 23 de la bride plate est pourvu d'un filetage interne permettant le vissage d'un écrou 26 emprisonnant le noyau cylindrique 24 de la bride piège 21 dans la douille de la bride plate 20. Une rondelle élastique 27 interposée entre l'écrou 26 et le noyau cylindrique de la bride piège 21 permet de plaquer ce dernier contre le plateau circulaire 22 de la bride plate 20. Des pièces de friction 28, 29 insérées dans la douille de la bride plate 20, à la périphérie du noyau cylindrique 24 de la bride piège 21 permettent à la fois le centrage et la rotation avec frottement des deux brides 20 et 21 l'une par rapport à l'autre. Un joint médian 30 assure l'étanchéïté pour le cas où le volume interne des brides 20 et 21 et des guides d'ondes rectangulaires qui leur sont raccordés serait pressurisé afin de permettre le transport d'un maximum d'énergie hyperfréquence.The orifice of the ring 23 of the flat flange is provided with an internal thread allowing the screwing of a nut 26 trapping the cylindrical core 24 of the trap flange 21 in the socket of the flat flange 20. An elastic washer 27 interposed between the nut 26 and the cylindrical core of the trap flange 21 makes it possible to press the latter against the circular plate 22 of the flat flange 20. Friction pieces 28, 29 inserted in the sleeve of the flat flange 20, at the periphery of the cylindrical core 24 of the trap flange 21 allow both centering and frictionally rotating the two flanges 20 and 21 relative to one another. A central seal 30 ensures the sealing in the case where the internal volume of the flanges 20 and 21 and the rectangular waveguides which are connected to them is pressurized in order to allow the transport of a maximum of microwave energy.

Chaque bride 20 ou 21 se prolonge par une portion de guide d'ondes rectangulaire pourvue d'un coude 31, 32 courbé à 90° dans l'un des plans de la grande ou de la petite largeur du guide d'ondes rectangulaire de manière que la rotation entre les brides 20, 21 d'un raccord rotatif se traduise, pour les éléments rigides de guide d'ondes rectangulaire qui lui sont raccordés, par un mouvement de pivotement d'axe transversal.Each flange 20 or 21 is extended by a rectangular waveguide portion provided with an elbow 31, 32 bent at 90 ° in one of the planes of the great or the small width of the rectangular waveguide so that the rotation between the flanges 20, 21 of a rotary connector translates, for the rigid elements of rectangular waveguide which are connected to it, by a pivoting movement of transverse axis.

Le raccord rotatif qui vient d'être décrit peut transmettre de l'énergie hyperfréquence lorsque les fenêtres rectangulaires de ses brides sont en coïncidence. Ceci à lieu pour deux positions dites opérationnelles qui sont à 180° l'une de l'autre et qui correspondent pour des éléments rigides articulés par le raccord rotatif à des positions relatives précises qui dépendent des plans de courbure des coudes.The rotary connector which has just been described can transmit microwave energy when the rectangular windows of its flanges are in coincidence. This takes place for two so-called operational positions which are 180 ° from one another and which correspond for rigid elements articulated by the rotary connector to precise relative positions which depend on the planes of curvature of the elbows.

Les figures 6 et 7 montrent en perspective, dans deux positions opérationnelles, un raccord rotatif dont les coudes 31, 32 sont courbés à 90° dans un plan parallèle à la plus petite largeur du guide d'ondes rectangulaire. Dans la première position opérationnelle de la figure 6 où les fenêtres rectangulaires des brides plate et à piège sont en coïncidence, les deux coudes 31 et 32 orientés dans un même plan provoquent une mise en alignement, en extension, des deux éléments rigides de guide d'ondes rectangulaire articulés par le raccord rotatif. Dans la deuxième position opérationnelle de la figure 7 où les fenêtres rectangulaires des brides plate et à piège sont également en coïncidence, les deux coudes 31 et 32 orientés dans un même plan provoquent une mise en alignement, repliés côte à côte, des deux éléments rigides de guide d'ondes rectangulaire articulés par le raccord rotatif.Figures 6 and 7 show in perspective, in two operational positions, a rotary connector whose elbows 31, 32 are bent at 90 ° in a plane parallel to the smallest width of the rectangular waveguide. In the first operational position of FIG. 6 where the rectangular windows of the flat and trap flanges are in coincidence, the two elbows 31 and 32 oriented in the same plane cause the two rigid guide elements to align, in extension 'rectangular waves articulated by the rotary connector. In the second operational position of FIG. 7 where the rectangular windows of the flat and trap flanges are also in coincidence, the two elbows 31 and 32 oriented in the same plane cause the two rigid elements to be aligned, folded side by side. of rectangular waveguides articulated by the rotary connector.

Les deux coudes d'un raccord rotatif peuvent également être courbés à 90° dans un plan parallèle à la grande largeur du guide d'ondes rectangulaires. Comme précédemment, ils provoquent, pour les deux positions opérationnelles du raccord rotatif, une mise en alignement, en extension ou repliés, des deux éléments de guide d'ondes rectangulaire articulés par le raccord rotatif.The two bends of a rotary connector can also be bent at 90 ° in a plane parallel to the large width of the rectangular waveguide. As before, they cause, for the two operational positions of the rotary connector, an alignment, extension or folded, of the two rectangular waveguide elements articulated by the rotary connector.

Les deux coudes d'un raccord rotatif peuvent aussi être courbés à 90° l'un dans un plan parallèle à la petite largeur du guide d'ondes rectangulaire, l'autre dans un plan parallèle à la grande largeur du guide d'ondes rectangulaire. Ils provoquent alors, pour les deux positions opérationnelles du raccord rotatif une mise en équerre soit dans un sens, soit dans l'autre, des deux éléments de guide d'ondes rectangulaire articulés par le raccord rotatif.The two bends of a rotary connector can also be bent at 90 °, one in a plane parallel to the small width of the rectangular waveguide, the other in a plane parallel to the large width of the rectangular waveguide . They then cause, for the two operational positions of the rotary coupling, to square either in one direction or in the other, of the two rectangular waveguide elements articulated by the rotary connector.

La chaîne de trois éléments rigides articulés 13, 14, 15 décrite précédemment relativement à la figure 4 prend une configuration en L ou en ┌ lorsque l'antenne est en position extrême d'escamotage ou d'érection, ses éléments rigides 13, 14, 15 venant deux à deux en alignement ou en équerre avec, à chaque fois des raccords rotatifs en positions opérationnelles pour permettre, dans ces situations, l'échange d'énergie hyperfréquence entre l'antenne et les équipements d'émission et de réception. Les articulations d'extrémités 16, 19 de la chaîne ainsi que l'articulation 18 qui rattachent des éléments placés en équerre lorsque l'antenne est en situation extrême d'escamotage ou d'érection sont formées chacune de deux raccords rotatifs de même axe transversal du type à coudes courbés à 90° dans deux plans orthogonaux, l'un parallèle à la petite largeur et l'autre à la grande largeur du guide d'ondes rectangulaire. L'articulation 17 de la chaîne qui rattache des éléments placés en alignement lorsque l'antenne est en situation extrême d'escamotage ou d'érection est formée de deux raccords rotatifs de même axe transversal du type à coudes courbés à 90° dans le même plan parallèle soit à la grande soit à la petite largeur du guide d'ondes rectangulaire.The chain of three rigid articulated elements 13, 14, 15 described above in relation to FIG. 4 takes an L or ┌ configuration when the antenna is in the extreme retracted or erected position, its rigid elements 13, 14, 15 coming two by two in alignment or at right angles with, each time rotary couplings in operational positions to allow, in these situations, the exchange of microwave energy between the antenna and the transmission and reception equipment. The end joints 16, 19 of the chain as well as the joint 18 which connect elements placed at right angles when the antenna is in an extreme retraction or erection situation are each formed by two rotary connectors of the same transverse axis. of the type with 90 ° bends in two orthogonal planes, one parallel to the small width and the other to the large width of the rectangular waveguide. The articulation 17 of the chain which connects elements placed in alignment when the antenna is in an extreme retraction or erection situation is formed by two rotary connectors of the same transverse axis of the type with elbows bent at 90 ° in the same plane parallel to either the large or the small width of the rectangular waveguide.

Pour tenir les configurations en L ou en ┌ lorsque l'antenne est en situation extrême d'escamotage ou d'érection, l'articulation 17 qui rattache les éléments rigides 13, 14 est pourvue d'un système mécanique à ressort de rappel tendant à maintenir les éléments rigides 13 et 14 alignés et l'articulation d'extrémité 19 est pourvue d'un moteur tendant à replacer l'élément rigide 15 en équerre par rapport à l'élément rigide 14 lorsque l'antenne est érigée en position de fonctionnement hors de son silo.To hold the L or ┌ configurations when the antenna is in an extreme retraction or erection situation, the articulation 17 which connects the rigid elements 13, 14 is provided with a mechanical spring-return system tending to keep the rigid elements 13 and 14 aligned and the end joint 19 is provided with a motor tending to replace the rigid element 15 at right angles to the rigid element 14 when the antenna is erected in the operating position out of his silo.

La figure 8 illustre les déformations subies par la chaîne constituant la liaison hyperfréquence mobile lorsque l'antenne passe d'une position extrême d'escamotage à une position extrême d'érection et inversement.FIG. 8 illustrates the deformations undergone by the chain constituting the mobile microwave link when the antenna goes from an extreme retraction position to an extreme erection position and vice versa.

Lorsque l'antenne est escamotée dans son silo, la chaîne de la liaison hyperfréquence mobile a une configuration en L avec ses raccords rotatifs en positions opérationnelles permettant un échange d'énergie hyperfréquence entre l'antenne et les équipements d'émission et de réception pour des opérations de maintenance. L'élément rigide 13 articulé au point fixe 10 pend verticalement de même que l'élément rigide 14 qui lui est articulé par l'articulation 17 pourvue du système mécanique à ressort de rappel. L'élément rigide 15 articulé à la base du mât d'antenne et à l'élément rigide 14 est quant à lui, placé horizontalement en équerre par rapport à l'élément rigide 14 et aux guides d'ondes rectangulaires 12 solidaires de la base du mât d'antenne.When the antenna is retracted in its silo, the chain of the mobile microwave link has an L-shaped configuration with its rotary connectors in operational positions allowing an exchange of microwave energy between the antenna and the transmission and reception equipment for maintenance operations. The rigid element 13 articulated at the fixed point 10 hangs vertically as does the rigid element 14 which is articulated to it by the articulation 17 provided with the mechanical spring-return system. The rigid element 15 articulated at the base of the antenna mast and to the rigid element 14 is meanwhile, placed horizontally at right angles to the rigid element 14 and to the rectangular waveguides 12 integral with the base antenna mast.

Lorsque l'antenne est hissée hors du silo, le moteur de l'articulation 19 est débrayé permettant à l'élément rigide 15 de prendre diverses positions inclinées imposées par la traction de l'antenne et l'action de la pesanteur sur les trois éléments rigides 13, 14, 15 de la chaîne. Au cours de ce mouvement, l'élément rigide 14 s'incline et passe par l'horizontal avant d'être en partie retourné tandis que l'élément rigide 13 s'incline jusqu'à une position proche de l'horizontal.When the antenna is hoisted out of the silo, the motor of the articulation 19 is disengaged allowing the rigid element 15 to take various inclined positions imposed by the traction of the antenna and the action of gravity on the three elements rigid 13, 14, 15 of the chain. During this movement, the rigid element 14 tilts and passes through the horizontal before being partially turned over while the rigid element 13 tilts to a position close to the horizontal.

Une fois l'antenne dans sa position finale hors du silo, le moteur de l'articulation 19 est actionné pour faire remonter l'élément rigide 15 à l'horizontal et imposer aux éléments rigides 13 et 14 une position verticale de manière à obtenir une configuration en où tous les raccords rotatifs des articulations soient à nouveau dans des positions opérationnelles permettant l'échange d'énergie hyperfréquence entre l'antenne et les équipements d'émission et de réception.Once the antenna in its final position outside the silo, the motor of the articulation 19 is actuated to raise the rigid element 15 horizontally and impose a rigid position on the rigid elements 13 and 14 so as to obtain a configuration in which all the rotary joints of the joints are again in operational positions allowing the exchange of microwave energy between the antenna and the transmission and reception equipment.

Claims (9)

Liaison hyperfréquence mobile à guide d'ondes reliant un équipement électronique fixe (3, 4) à un équipement électronique mobile (1) pouvant être déplacé entre deux positions dont une de fonctionnement caractérisée en ce qu'elle comporte une chaîne d'au moins deux éléments rigides (13, 14, 15) de guide d'ondes rectangulaire articulés entre eux, à leurs extrémités, à l'aide d'un raccord rotatif formé de deux brides (20, 21) à fenêtre rectangulaire emboîtées et mobiles en rotation l'une par rapport à l'autre, le dit raccord rotatif présentant deux positions opérationnelles à 180° l'une de l'autre correspondant à une mise en coïncidence des fenêtres rectangulaires de ses brides (20, 21) et prenant l'une desdites positions opérationnelles lorsque l'équipement électronique mobile est en position de fonctionnement.Mobile microwave link with waveguide connecting fixed electronic equipment (3, 4) to mobile electronic equipment (1) which can be moved between two positions, one of which is operational, characterized in that it comprises a chain of at least two rigid elements (13, 14, 15) of rectangular waveguides hinged together, at their ends, using a rotary connector formed by two flanges (20, 21) with rectangular window fitted and movable in rotation l '' with respect to each other, said rotary connector having two operational positions at 180 ° from each other corresponding to a coincidence of the rectangular windows of its flanges (20, 21) and taking one of said operational positions when the mobile electronic equipment is in the operating position. Liaison hyperfréquence selon la revendication 1, caractérisée en ce qu'un raccord rotatif est formé de deux brides (20, 21) à fenêtre rectangulaire emboîtées et mobiles en rotation l'une par rapport à l'autre, dont l'une (21) est une bride à piège et l'autre (20) une bride plate.Microwave link according to claim 1, characterized in that a rotary connector is formed by two flanges (20, 21) with rectangular window fitted and movable in rotation relative to one another, one of which (21) is a trap flange and the other (20) is a flat flange. Liaison hyperfréquence selon la revendication 1, caractérisée en ce qu'un raccord rotatif comporte en outre au moins un coude (31) déportant transversalement son axe de pivotement par rapport à l'axe longitudinal de l'un des éléments rigides de guide d'ondes rectangulaire auxquels il est fixé.Microwave link according to claim 1, characterized in that a rotary connection further comprises at least one bend (31) transversely offset its pivot axis relative to the longitudinal axis of one of the rigid waveguide elements rectangular to which it is attached. Liaison hyperfréquence selon la revendication 3, caractérisée en ce qu'un raccord rotatif comporte, de chaque côté de ses brides (20, 21) emboîtées et mobiles en rotation l'une par rapport à l'autre, un coude (31, 32) déportant transversalement son axe de pivotement par rapport aux axes longitudinaux des éléments rigides de guide d'ondes rectangulaire auxquels il est fixé.Microwave link according to claim 3, characterized in that a rotary connector comprises, on each side of its flanges (20, 21) fitted and movable in rotation relative to each other, an elbow (31, 32) transversely offset its pivot axis relative to the longitudinal axes of the rigid rectangular waveguide elements to which it is fixed. Liaison hyperfréquence selon la revendication 4, caractérisée en ce qu'un raccord rotatif comporte, de chaque côté de ses brides (20, 21) emboîtées et mobiles en rotation l'une par rapport à l'autre, un coude à 90° courbé dans un plan parallèle à la grande largeur du guide d'ondes rectangulaire de l'élément rigide auquel il est fixé, ledit raccord rotatif ayant des positions opérationnelles correspondant à une mise en alignement, en extension ou repliés, des deux éléments rigides qui le portent.Microwave link according to claim 4, characterized in that a rotary connector comprises, each side of its flanges (20, 21) nested and movable in rotation relative to each other, a 90 ° bend bent in a plane parallel to the great width of the rectangular waveguide of the rigid element to which it is fixed, said rotary connector having operational positions corresponding to alignment, extension or folded, of the two rigid elements which carry it. Liaison hyperfréquence selon la revendication 4, caractérisée en ce qu'un raccord rotatif comporte, de chaque côté de ses brides (20, 21) emboîtées et mobiles en rotation l'une par rapport à l'autre, un coude (31, 32) à 90° courbé dans un plan parallèle à la petite largeur du guide d'ondes rectangulaire de l'élément rigide auquel il est fixé, ledit raccord rotatif ayant des positions opérationnelles correspondant à une mise en alignement, en extension ou repliés, des deux éléments rigides qui le portent.Microwave link according to claim 4, characterized in that a rotary connector comprises, on each side of its flanges (20, 21) fitted and movable in rotation relative to each other, an elbow (31, 32) at 90 ° curved in a plane parallel to the small width of the rectangular waveguide of the rigid element to which it is fixed, said rotary connector having operational positions corresponding to alignment, extension or folded, of the two elements rigid who wear it. Liaison hyperfréquence selon la revendication 4, caractérisée en ce qu'un raccord rotatif comporte d'un côté de ses brides (20, 21) emboîtées et mobiles en rotation l'une par rapport à l'autre, un coude à 90° courbé dans un plan parallèle à la grande largeur du guide d'ondes rectangulaire de l'élément rigide auquel il est fixé, et, de l'autre côté de ses brides, un coude à 90° courbé dans un plan parallèle à la petite largeur du guide d'ondes rectangulaire de l'élément rigide auquel il est fixé, ledit raccord rotatif ayant des positions opérationnelles correspondant à une mise en équerre des deux éléments rigides qui le portent.Microwave link according to claim 4, characterized in that a rotary connector comprises on one side of its flanges (20, 21) fitted and movable in rotation relative to each other, a 90 ° bend bent in a plane parallel to the large width of the rectangular waveguide of the rigid element to which it is fixed, and, on the other side of its flanges, a 90 ° bend bent in a plane parallel to the small width of the guide rectangular wave of the rigid element to which it is fixed, said rotary connector having operational positions corresponding to a square of the two rigid elements which carry it. Liaison hyperfréquence selon la revendication 1, caractérisée en ce que ladite chaîne d'éléments rigides (13, 14, 15) de guide d'ondes rectangulaire articulés à leurs extrémités au moyen de raccords rotatifs à brides (20, 21) à fenêtre rectangulaire, emboîtées et mobiles en rotation l'une par rapport à l'autre, relie l'équipement électronique mobile (1) à un point fixe (10) solidaire de l'équipement électronique fixe (3, 4) et disposé par côté, à mi-chemin des deux positions limites de déplacement de l'équipement électronique mobile (1), et prend, pour chaque position limite de l'équipement électronique mobile, une configuration dans laquelle l'ensemble de ses raccords rotatifs sont arrêtés dans des positions opérationnelles où les fenêtres rectangulaires de leurs brides (20, 21) sont en coïncidence.Microwave link according to claim 1, characterized in that said chain of rigid elements (13, 14, 15) of rectangular waveguide articulated at their ends by means of rotary flanged connections (20, 21) with rectangular window, nested and movable in rotation relative to each other, connects the mobile electronic equipment (1) to a fixed point (10) integral with the fixed electronic equipment (3, 4) and arranged by side, mid -path of the two positions displacement limits of mobile electronic equipment (1), and takes, for each limit position of mobile electronic equipment, a configuration in which all of its rotary couplings are stopped in operational positions where the rectangular windows of their flanges (20, 21) are coincidental. Liaison hyperfréquence selon la revendication 8, caractérisée en ce que ladite chaîne comporte trois éléments rigides (13, 14, 15) de guide d'ondes rectangulaire articulés à leurs extrémités au moyen de quatre articulations (16, 17, 18, 19) à raccords rotatifs pourvues de brides (20, 21) à fenêtre rectangulaire emboîtées et mobiles en rotation l'une par rapport à l'autre, et, de chaque côté des brides, de coudes à 90° (31, 32) qui sont courbés dans un plan parallèle à la grande ou à la petite largeur du guide d'ondes rectangulaire et qui rendent transversale l'axe de pivotement des articulations (16, 17, 18, 19) par rapport aux axes longitudinaux des éléments en leur donnant, pour une (17) d'entre elles des positions opérationnelles correspondant à la mise en alignement des éléments rigides (13, 14) qu'Il raccorde, et pour les trois autres (16, 17, 19) des positions opérationnelles correspondant à la mise en équerre des éléments qu'ils raccordent.Microwave link according to claim 8, characterized in that said chain comprises three rigid elements (13, 14, 15) of rectangular waveguide articulated at their ends by means of four joints (16, 17, 18, 19) with fittings rotary provided with flanges (20, 21) with rectangular window fitted and movable in rotation relative to each other, and, on each side of the flanges, 90 ° elbows (31, 32) which are bent in a plane parallel to the great or the small width of the rectangular waveguide and which make transverse the pivot axis of the articulations (16, 17, 18, 19) with respect to the longitudinal axes of the elements giving them, for a ( 17) of them operational positions corresponding to the alignment of the rigid elements (13, 14) that He connects, and for the other three (16, 17, 19) operational positions corresponding to the alignment of the elements they connect.
EP92401286A 1991-05-14 1992-05-12 Microwave mobile waveguide connection Expired - Lifetime EP0514251B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9105805 1991-05-14
FR9105805A FR2676598B1 (en) 1991-05-14 1991-05-14 WAVEGUIDED MOBILE MICROWAVE LINK.

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EP0514251A1 true EP0514251A1 (en) 1992-11-19
EP0514251B1 EP0514251B1 (en) 1995-08-30

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US (1) US5245301A (en)
EP (1) EP0514251B1 (en)
JP (1) JPH05183302A (en)
CA (1) CA2068572A1 (en)
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FR (1) FR2676598B1 (en)

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JP4373616B2 (en) 2001-01-29 2009-11-25 京セラ株式会社 Primary radiator and phase shifter and beam scanning antenna
ATE511884T1 (en) * 2006-10-24 2011-06-15 Pompilio Gatto DEVICE FOR INTRA-OPERATIVE RADIATION THERAPY WITH WAVEGUIDE WITH DOUBLE ROTARY COUPLING
FR2925769B1 (en) * 2007-12-21 2010-05-21 Thales Sa SIGNAL DELIVERY DEVICE FOR MOBILE ANTENNA POSITIONER.
US10290913B2 (en) 2013-06-19 2019-05-14 Japan Aerospace Exploration Agency Deployment structure comprised of flat panels with waveguides disposed therein, where the flat panels are rotated into engagement with each other to couple the waveguides
JP2022125444A (en) * 2021-02-17 2022-08-29 古野電気株式会社 waveguide connection structure
CN115084804B (en) * 2022-06-28 2023-04-28 电子科技大学 GW-class circular TM 01 Mould vacuum rotary joint

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US3517341A (en) * 1968-09-16 1970-06-23 Teledyne Inc Microwave polarization switch
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Also Published As

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EP0514251B1 (en) 1995-08-30
JPH05183302A (en) 1993-07-23
DE69204353D1 (en) 1995-10-05
US5245301A (en) 1993-09-14
FR2676598A1 (en) 1992-11-20
DE69204353T2 (en) 1996-02-15
FR2676598B1 (en) 1993-07-23
CA2068572A1 (en) 1992-11-15

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