EP2232624B1 - Vorrichtung zur signalübermittlung für einen mobilen antennenpositionierer - Google Patents

Vorrichtung zur signalübermittlung für einen mobilen antennenpositionierer Download PDF

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Publication number
EP2232624B1
EP2232624B1 EP08868353A EP08868353A EP2232624B1 EP 2232624 B1 EP2232624 B1 EP 2232624B1 EP 08868353 A EP08868353 A EP 08868353A EP 08868353 A EP08868353 A EP 08868353A EP 2232624 B1 EP2232624 B1 EP 2232624B1
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EP
European Patent Office
Prior art keywords
positioner
waveguide
wave guide
antenna
movement
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.)
Not-in-force
Application number
EP08868353A
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English (en)
French (fr)
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EP2232624A1 (de
Inventor
Thierry Schertz
Eric Vignolle
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.)
Thales SA
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Thales SA
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Publication date
Application filed by Thales SA filed Critical Thales SA
Publication of EP2232624A1 publication Critical patent/EP2232624A1/de
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Publication of EP2232624B1 publication Critical patent/EP2232624B1/de
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/02—Bends; Corners; Twists
    • H01P1/022—Bends; Corners; Twists in waveguides of polygonal cross-section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave

Definitions

  • the present invention relates to a signal routing device for a mobile antenna positioner.
  • the invention applies in particular to mobile antenna communication systems, and more particularly to the production of antenna stations comprising wide-displacement antenna positioners in the field.
  • antenna systems used in bidirectional communications between two mobile carriers are generally provided with a tracking function, the antenna of each of said carriers then having to cover a large pointing surface, so that the radio axes of Each antenna remains oriented vis-à-vis, regardless of the movements of the carriers.
  • an antenna system comprises a positioner, that is to say an automaton comprising a mobile part on which the antenna is fixed.
  • a first category of positioners makes it possible to orient the antenna by rotating it, on the one hand, around a vertical axis to modify the angle of bearing and, on the other hand, around a horizontal axis to change the elevation angle.
  • the signals transmitted and / or received by the mobile antenna are transmitted to a fixed part, for example at the foot of the positioner, via a waveguide.
  • the antennary system has a large displacement in the bearing, or even infinite deposit, in other words, when it allows the antenna to rotate indefinitely around the vertical axis, then the use of rotating collectors and / or rotating joints at level of the junction of the waveguide with the fixed part is necessary, so as to avoid submitting the waveguide torsion forces that would damage it.
  • a disadvantage of such antenna systems is their high cost of implementation.
  • the prior art US 4,876,553 discloses an antenna feed guide rotation system.
  • a second category of positioners made on the principle of a Cardan suspension, eliminates collectors and rotating joints.
  • These improved positioners include a pointing device without dead point based on a pantograph mechanism; they will be qualified later as “pantograph positioners”.
  • waveguides that are sufficiently flexible and accept torsional movements are used.
  • waveguides consist of a discontinuous structure, often based on nested scales that cause reliability problems. Indeed, the structure of such a waveguide wears very quickly or even breaks under the effect of repeated twisting movements applied to it. Also, the life of the waveguide is short, which imposes regular preventive replacements. In addition, significant insertion losses and intermodulation products occur when using this type of waveguide. In emission, the powers are then strongly limited.
  • An object of the invention is to propose means making it possible to convey signals between the antenna and the foot of a positioner with a large clearance displacement by limiting the insertion losses, the degradation of the signals received and the problems of mechanical viability.
  • the subject of the invention is a device for routing microwave signals for an antenna positioner, said positioner being a positioner with a large displacement in the field comprising a fixed part and a mobile part supporting the antenna, the moving part.
  • said device comprising a waveguide with a conductive structure a first end of which is connected to the antenna, a second end being connected to the fixed part of the positioner, said device being characterized in that the waveguide is of continuous structure, having an upper end, a lower end and a or several sets of ball joints, the waveguide thus substantially forming an "S", each of its ends being fixed by means allowing a debate waveguide to limit the bending forces of said guide during movements of the positioner.
  • the antenna positioner is a pantograph type antenna positioner.
  • the means for fixing the waveguide comprise at least one support, locking means and one or more sets of ball joints fixed on said support, the end of the waveguide being kept substantially stationary relative to the support by the blocking means, the waveguide being inserted into said sets of ball joints in order to stabilize the waveguide while giving it a deflection.
  • the device comprises at least one spring, the spring being attached to the waveguide by cable clamps.
  • the signals conveyed by the waveguide are microwave signals.
  • the waveguide is electroformed and made of an alloy comprising beryllium and copper, this material being well adapted to transmissions of microwave signals, and being also adapted to undergo bending along its structure.
  • the waveguide has a bellows structure, the waveguide can be alternately deformed along a first axis of rotation and a second axis of rotation, the waveguide can not be deformed under the effect of a twisting motion.
  • the inner wall of the waveguide is smooth and has no roughness or opening.
  • the moving part 300 of the positioner 100 moves around two axes of rotation X and Y, represented in dotted lines on the figure 2 .
  • the upper end 200a of the waveguide 200 which is fixed on the movable part 300 of the positioner 100 thanks to the first fastening means 201, is maintained substantially parallel to the second axis of rotation Y of the positioner, this second axis of rotation Y being itself subjected to a rotational movement about the first axis of rotation X.
  • the lower end 200b of the waveguide 200 is held in a fixed position by the second fastening means 202a, 202b, said low end being maintained in the example, substantially horizontally.
  • the second fixing means 202a, 202b comprise a first point of attachment 202a allowing a freedom of movement to the waveguide 200, and a second attachment point 202b, placed below the first 202a, for immobilizing the low end 200b of the waveguide 200.
  • the waveguide 200 is held by three attachment points 201, 202a, 202b; it substantially forms an S between its upper end 200a and its lower end 200b, this S being deformed according to the movements of the movable part 300 of the positioner 100, alternately in a movement around the first axis of rotation X and around the second axis of Y rotation.
  • the high end 200a of the waveguide 200 is attached to the positioner fork 203a, while the low end 200b of the waveguide 200 is attached to the riser 204 of the positioner 100 .
  • one or more springs are contiguous to the waveguide 200, to prevent sagging of said guide 200 on itself, because of its own weight, and thus better distribute the mechanical stresses applied to the waveguide 200.
  • These springs can be distributed sporadically on the waveguide 200 or extend over its entire length, the stiffness of a spring being chosen in particular according to the weight of the waveguide 200, the size of the waveguide, and the size of the positioner 100.
  • the springs are slidably attached only along a plane of the guide through flexible fasteners, such as, for example, plastic cable ties.
  • the continuous character of the structure of the waveguide 200 - which makes it possible to obtain good performance in terms of signal transmission - makes it necessary to design specific fastening means to limit the mechanical forces applied to it during the movement of the waveguide. positioner 100.
  • the figure 3 present, for the embodiment of the figure 2 , a detail of the fastening means 201 of the signal conveying device on the upper mobile part 300 of the positioner.
  • These fastening means 201 comprise a support 301 fixed to the mobile high part 300 of the positioner, which, in the example, is the fork 203a.
  • the support 301 is a rectangular rigid plate whose wall is fixed on the fork 203a of the positioner 100, the support 301 thus forming a plane orthogonal to the first axis of rotation X.
  • Brackets 302 are fixed on the opposite wall of the support 301, the two orthogonal planes 302a, 302b formed by the walls of each bracket 302 themselves being orthogonal to the plane formed by the two axes. X and Y rotation.
  • the first wall 302a of each bracket 302 is contiguous to the support 301, while the second wall 302b of the bracket 302 is orthogonal to the second axis of rotation Y.
  • a flange 303 integral with the waveguide 200 is placed on the second wall of each bracket 302, so that the waveguide 200 is gripped by each of the flanges 303 along the support 301 and its upper end 200a is held fixed relative to the moving part 300 of the positioner 100, to connect to the antenna 101 ( Figures 1A and 1B ).
  • the upper end 200a of the waveguide 200 is held stationary relative to the mobile part 300 of the positioner 100 while the lower part 200b ( figure 4 ) of the waveguide 200 remaining fixed, the waveguide 200 must withstand bending stresses due to the movements of the positioner 100, both around the first axis of rotation X and around the second axis of rotation Y. to limit these bending forces, the waveguide 200 is inserted into one or more sets of ball joints 304, placed in the extension of the brackets 302, along the support 301. In this way, the waveguide 200 is maintained in place while having a travel allowing it to better withstand the bending imposed by the movement of the positioner 100 and simultaneously reduce the stresses applied to the flange 303.
  • the spacings between the sets of ball joints 304 can be adapted depending, in particular on the length of the waveguide 200 and its flexibility characteristics.
  • the figure 4 present, for the embodiment of the figure 2 a detail of the fixing means 202a, 202b of the signal routing device on the lower part 400 of the positioner 100.
  • the fastening means 202a, 202b comprise a first portion 202a located substantially above a second portion 202b.
  • the first part 202a of the fixing means 202a, 202b comprises a ball joint assembly 304 'fixed on a support 301' and the second part 202b comprises a fixing flange 303 'fixed on a bracket 302', which is fixed to a support 301 "
  • the waveguide 200 is maintained by the ball joint 304 'of the first part 202a and the lower end 200b of the waveguide 200 is fixed to the second part 202b via the fixing flange 303', so that the guide Wave 200 substantially describes a half loop between the first portion 202a and the second portion 202b.
  • the fixing means 202 of the signal routing device on the lower part 400 of the positioner 100 are similar to those presented in FIG. figure 3 . They also comprise one or more brackets 302 "substantially aligned on a support 301".
  • the waveguide 200 is shown in slight recess with respect to the bracket 302.
  • the low end 200b of the waveguide 200 is fixed to the bracket 302 "by means of a fastening flange. 303 ".
  • the waveguide 200 is also stabilized with one or more sets of 304" ball joints to give it a travel to limit the bending forces applied to it, as in the figure 3 and to reduce the force applied on the fastening flange 303 ".
  • the figure 6 illustrates the structure of the waveguide 200, with a cross section 6A and a perspective view 6B.
  • the waveguide 200 has a continuous structure, ie unlike a conventional structure formed by a plurality of associated elements, the waveguide 200 used in the signal routing device according to the invention is formed of only one part, without opening or asperity on its inner wall.
  • the waveguide 200 comprises a bellows structure, of rectangular section, with a conductive inner wall, here in an alloy comprising beryllium and copper.
  • the waveguide is electroformed.
  • the waveguide 200 used in the present invention can not, because of its continuous nature, be subjected to a torsion movement at the same point, that is to say to undergo two orthogonal flexions at the same point. Also, the waveguide 200, to allow nevertheless to adapt to the mechanical stresses imposed by the movement of the positioner 100 is adapted undergo flexing of different directions in several successive locations, particularly thanks to the material used and its bellows structure.
  • the length of the waveguide 200 is to be chosen so as to minimize the bending forces applied to it; thus a waveguide 200 too short, for example, could lead to mechanical breaks.
  • a signal routing device makes it possible to reduce the insertion losses, to guarantee the isolation of the waveguide over time and not to generate intermodulation products towards the input signal. outside the waveguide especially for microwave signals of high power.
  • the attachment means employed and despite the continuous nature of the waveguide structure, the latter is not subjected to excessive bending forces, thus ensuring a good friability of the device.
  • the signal routing device according to the invention is particularly suitable for pantograph antenna positioners and ensures an infinitely rotational coverage of the positioner deflection zone. Nevertheless, it can also be mounted on positioners of different types, including turret-type positioners with large displacement in the bearing.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Connection Structure (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Details Of Aerials (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Control Of Conveyors (AREA)
  • Support Of Aerials (AREA)

Claims (6)

  1. Vorrichtung zum Übertragen von Hyperfrequenzsignalen für den Positionierer (100) einer Antenne (101), wobei der Positionierer (100) einen großen Azimutbereich hat, umfassend einen festen Teil (400) und einen beweglichen Teil (300), der die Antenne (101) trägt, wobei der bewegliche Teil so ausgelegt ist, dass er sich zum zwei Drehachsen X und Y bewegen kann, wobei die zweite Drehachse Y so konfiguriert ist, dass sie eine Drehbewegung um die erste Drehachse X erfährt, wobei die Vorrichtung einen Wellenleiter (200) mit einer leitenden Struktur umfasst, von der ein erstes Ende (200a) mit der Antenne und ein zweites Ende (200b) mit dem festen Teil (400) des Positionierers verbunden sind, wobei die Vorrichtung dadurch gekennzeichnet ist, dass der Wellenleiter (200) eine kontinuierliche Struktur hat, die ein oberes Ende (200a), ein unteres Ende (200b) und ein oder mehrere Kugelgelenksätze (304, 304') umfasst, wobei der Wellenleiter (200) somit im Wesentlichen eine "S"-Form bildet, wobei jedes seiner Enden (200a, 200b) mit Mitteln (201, 202) befestigt ist, die einen Bewegungsbereich für den Wellenleiter (200) bieten, um die Biegekräfte des Leiters bei Bewegungen des Positionierers zu begrenzen,
  2. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Mittel (201, 202) zum Befestigen des Wellenleiters wenigstens einen Träger (301, 301'), Sperrmittel (302, 303, 302', 303') sowie ein oder mehrere an dem Träger (301, 301') befestigte Kugelgelenksätze (304, 304') umfassen, wobei das Ende (200a, 200b) des Wellenleiters (200) von den Sperrmitteln (302, 303) im Wesentlichen unbeweglich relativ zum Träger (301, 301') gehalten wird, wobei der Wellenleiter (200) in die Kugelgelenksätze (304, 304') eingesetzt wird, um den Wellenleiter (200) zu stabilisieren und ihm dabei einen Bewegungsbereich zu geben.
  3. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass sie wenigstens eine Feder umfassst, wobei die Feder mit mehreren Kabelklemmen am Wellenleiter (200) befestigt wird,
  4. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Wellenleiter (200) aus einer Beryllium und Kupfer umfassenden Legierung galvanogeformt ist.
  5. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Wellenleiter (200) eine Balgstruktur hat.
  6. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Innenwand des Wellenleiters (200) glatt ist und keine Unregelmäßigkeiten oder Öffnungen aufweist.
EP08868353A 2007-12-21 2008-12-16 Vorrichtung zur signalübermittlung für einen mobilen antennenpositionierer Not-in-force EP2232624B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0709053A FR2925769B1 (fr) 2007-12-21 2007-12-21 Dispositif d'acheminement de signaux pour positionneur d'antenne mobile.
PCT/EP2008/067650 WO2009083440A1 (fr) 2007-12-21 2008-12-16 Dispositif d'acheminement de signaux pour positionneur d'antenne mobile

Publications (2)

Publication Number Publication Date
EP2232624A1 EP2232624A1 (de) 2010-09-29
EP2232624B1 true EP2232624B1 (de) 2011-08-31

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Application Number Title Priority Date Filing Date
EP08868353A Not-in-force EP2232624B1 (de) 2007-12-21 2008-12-16 Vorrichtung zur signalübermittlung für einen mobilen antennenpositionierer

Country Status (7)

Country Link
US (1) US8547290B2 (de)
EP (1) EP2232624B1 (de)
AT (1) ATE522948T1 (de)
ES (1) ES2370189T3 (de)
FR (1) FR2925769B1 (de)
IL (1) IL206517A (de)
WO (1) WO2009083440A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9561730B2 (en) 2010-04-08 2017-02-07 Qualcomm Incorporated Wireless power transmission in electric vehicles
US10343535B2 (en) 2010-04-08 2019-07-09 Witricity Corporation Wireless power antenna alignment adjustment system for vehicles
US9979082B2 (en) * 2015-08-10 2018-05-22 Viasat, Inc. Method and apparatus for beam-steerable antenna with single-drive mechanism
JP2024508790A (ja) 2021-02-22 2024-02-28 オフワールド，インコーポレイテッド ロボットアーム導波管を用いたマイクロ波ベースの採掘システム及び方法

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
FR1245442A (fr) 1960-01-21 1960-11-04 Guide d'onde métallique flexible sans soudure
CH493110A (de) * 1968-12-07 1970-06-30 Telefunken Patent Richtantenne
DE3740651A1 (de) * 1987-12-01 1989-06-22 Messerschmitt Boelkow Blohm Vorrichtung zur einstellung der polarisationsebene
FR2676598B1 (fr) * 1991-05-14 1993-07-23 Thomson Csf Liaison hyperfrequence mobile a guide d'ondes.
US5543808A (en) * 1995-05-24 1996-08-06 The United States Of America As Represented By The Secretary Of The Army Dual band EHF, VHF vehicular whip antenna
FR2769969B1 (fr) 1997-10-17 2000-01-14 Acc Ingenierie & Maintenance Mecanisme de pointage a deux mouvements de rotation independants, sans point mort
US6577282B1 (en) * 2000-07-19 2003-06-10 Hughes Electronics Corporation Method and apparatus for zooming and reconfiguring circular beams for satellite communications
GB0122357D0 (en) * 2001-09-15 2001-11-07 Secr Defence Sub-surface radar imaging
US7079739B1 (en) * 2003-11-28 2006-07-18 Peter Vitruk Flexible hollow waveguide and method for its manufacture
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US8427384B2 (en) * 2007-09-13 2013-04-23 Aerosat Corporation Communication system with broadband antenna

Also Published As

Publication number Publication date
US20110095959A1 (en) 2011-04-28
IL206517A0 (en) 2010-12-30
IL206517A (en) 2014-11-30
WO2009083440A1 (fr) 2009-07-09
FR2925769B1 (fr) 2010-05-21
EP2232624A1 (de) 2010-09-29
ES2370189T3 (es) 2011-12-13
US8547290B2 (en) 2013-10-01
FR2925769A1 (fr) 2009-06-26
ATE522948T1 (de) 2011-09-15

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