EP0243888B1 - Mikrowellen-Drehkopplungsvorrichtung - Google Patents

Mikrowellen-Drehkopplungsvorrichtung Download PDF

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Publication number
EP0243888B1
EP0243888B1 EP87105976A EP87105976A EP0243888B1 EP 0243888 B1 EP0243888 B1 EP 0243888B1 EP 87105976 A EP87105976 A EP 87105976A EP 87105976 A EP87105976 A EP 87105976A EP 0243888 B1 EP0243888 B1 EP 0243888B1
Authority
EP
European Patent Office
Prior art keywords
accesses
coupled
main
guides
waveguide
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.)
Expired - Lifetime
Application number
EP87105976A
Other languages
English (en)
French (fr)
Other versions
EP0243888A1 (de
Inventor
Jean Claude Anne
Philippe Gourlain
Régis Lenormand
Gérard Raguenet
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 Espace Industries SA
Original Assignee
Alcatel Espace Industries 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 Espace Industries SA filed Critical Alcatel Espace Industries SA
Publication of EP0243888A1 publication Critical patent/EP0243888A1/de
Application granted granted Critical
Publication of EP0243888B1 publication Critical patent/EP0243888B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01P1/06—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 invention relates to a microwave rotating joint device.
  • the telecommunications antennas via relay satellite, must have very large orientation capacities, typically: 0 ⁇ ⁇ ⁇ 120 ° (elevation) 0 ⁇ ⁇ ⁇ 360 ° (azimuth)
  • the complete microwave transponder is located behind the antenna.
  • thermal control is very difficult to achieve; it significantly affects the satellite's power consumption budget.
  • the invention makes it possible to integrate the electronic transmission and reception equipment on the satellite platform, thanks to the use of a new microwave rotating joint device.
  • Rotary joint devices generally use the properties of symmetry of revolution of coaxial or cylindrical propagation modes. Therefore, they require the use of transitions between the access guides (inlets / outlets) operating according to a certain type of propagation (rectangular, cylindrical guides) and the rotating joint itself.
  • the adaptation conditions mean that the band of use does not then exceed a ratio of approximately 1.5.
  • the device of the invention does not have such frequency limitation.
  • US-A 3668567 describes a dual mode rotary microwave coupler which comprises a main circular guide consisting of two parts located in the extension of one another and movable in rotation one by relation to each other around their axis of symmetry, each of these two parts being provided with two accesses orthogonal to each other and orthogonal with the wall of the guide, and a hybrid input coupler having its two outputs coupled to the two accesses of the first part by means of two guides.
  • the invention provides a device in which low-pass filters are interposed between the hybrid couplers and the accesses to the two parts of the main guide, at these accesses, and in which two cut-off guides are arranged on either side of the main guide, each of these guides being provided with two accesses which are orthogonal to it and which are orthogonal to one another, an input hydride coupler having two outputs coupled to the accesses of the first of these guides, and an output hybrid coupler having its inputs coupled to the ports of the second of these guides, this first and this second guides being guides closed at their free ends.
  • the device of the invention comprises a main circular guide consisting of two parts 10 and 11 located in the extension of one another, and movable in rotation relative to each other about their axis of symmetry ⁇ .
  • Two accesses 12 and 13 to the first part 10 of the main guide are orthogonal thereto and orthogonal to each other. They are coupled to the outputs 14 and 15 of a first hybrid coupler 18 of 3dB coupling value via two guides 16 and 17. This coupler 18 is connected at the input to two guides 19 and 20.
  • These two accesses 12 and 13 are located at a distance d1 from a short-circuit plane 21 produced by a cut-off guide.
  • Two accesses 22 and 23 to the second part 11 of the main guide are orthogonal thereto and orthogonal to each other. They are connected to the inputs 24 and 25 of a second hybrid coupler 26 of 3dB coupling value via two guides 27 and 28. This coupler 26 is connected at the output to two guides 29 and 30.
  • These two accesses 22 and 23 are located at a distance d2 from a short-circuit plane 31 produced by a cut-off guide.
  • the short-circuit plane 21 is located at a distance d1 from the two accesses 12 and 13 such that all the energy propagates in the main guide from the first part 10 to the second part 11.
  • the short-circuit 31 is located at a distance d2 from the two slots 22 and 23 such that all of this energy which comes from the slots 12 and 13 propagates in the guides 27 and 28.
  • the guides which make the connection between the hybrid couplers 18 and 26 and the main guide 10, 11 are rectangular guides.
  • One of the two inputs of the hybribe coupler 18, numbered 19, receives a signal which is transmitted to the two guides 16 and 17 and which, by coupling with the main guide via the two ports 12 and 13, allows transmission in this one of a wave with circular polarization.
  • two main guides 35 and 36 are used on either side of the main guide 10, 11, shown in FIG. 1.
  • two accesses 37 and 38 to the guide 35 are orthogonal thereto and orthogonal to each other.
  • a hybrid coupler 39 connected at the input to two guides 40 and 41, has its two outputs connected to two guides 42 and 43 which are coupled to these two ports 37 and 38.
  • a hybrid coupler 45 connected at the output to two guides 46 and 47, has its two inputs connected to two guides 48 and 49 which are coupled to two ports 50 and 51 of the guide 36, these two ports being orthogonal to this guide 36 and orthogonal to each other.
  • the two cut-off guides 35 and 36 have their free ends 58 and 59 closed and located at a distance from the planes of the accesses 37, 38, and 50, 51 such that all the energy is transmitted from one part of the coupler 39, via ports 37 and 38, to the junction, then from the junction to coupler 45, via ports 50 and 51.
  • the excitation of the circular polarization wave of the main guide 10, 11 is done without obstacle in this main guide; it follows that if four filters 54, 55 and 56, 57 of the low-pass type are placed which bring a short-circuit plane into the plane of the accesses 12, 13 and 22, 23, the device can be used for another frequency band such that it can propagate within a diameter of the guide less than the diameter in the fictitious short-circuit planes 21 and 31 which are obtained by cut-off guides. For use at higher frequencies, the diameter of the guides 35 and 36 must therefore be less than the diameter of the guide when cut.
  • the low-pass filters 54 and 55 have short-circuit planes in the planes of the accesses 12 and 13, it is therefore possible to operate with a second frequency band.
  • each hybrid input coupler 18, 39 which corresponds respectively to a single output from each hybrid output coupler 26, 45 .
  • each hybric coupler of input its second input to convey a second signal at the same frequency as that conveyed by the first input.
  • the electrical contact between the two parts 10 and 11 of the central conductor can be made using a coupling device shown in FIG. 4.
  • the electrical junction in the P plane occurs at the bottom of a corrugation.
  • Such a type of junction makes it possible to obtain good electrical continuity without requiring very good mechanical contact.
  • this circular polarized wave can be done using a single access 22 (or 23) after having placed a polarizing device in the second part 11 of the main guide.

Landscapes

  • Waveguide Connection Structure (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Transmission Devices (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)

Claims (4)

1. Mikrowellen-Drehkopplungsvorrichtung mit einem Haupt-Rundhohlleiter, der aus zwei zueinander fluchtenden Teilen (10, 11) besteht, die relativ zueinander um ihre Symmetrieachse (Δ) drehbeweglich sind, wobei jedes der beiden Teile (10, 11) mit zwei senkrecht zueinander und senkrecht zur Wand des Hohlleiters gerichteten Anschlüssen (12, 13 und 22, 23) ausgestattet ist, und mit einem Hybrideingangskoppler (18), dessen beide Ausgänge (14, 15) über zwei Hohlleiter (16, 17) an die beiden Anschlüsse (12, 13) des ersten Teils (10) angekoppelt sind, dadurch gekennzeichnet, daß die Vorrichtung einen Hybridausgangskoppler aufweist, dessen zwei Eingänge (24, 25) über zwei Hohlleiter (27, 28) an die beiden Abschlüsse (22, 23) des zweiten Teils (11) des Haupthohlleiters angekoppelt sind, und daß die äußeren Enden der beiden Teile (10, 11) des Haupthohlleiters als cut-off Wellenleiter ausgebildet sind, um Kurzschlußebenen (21, 31) zu bilden,
- wobei die erste Kurzschlußebene (21) in einem ersten Abstand (d1) von den beiden Anschlüssen (12 und 13) des ersten Teils (10) angeordnet ist, derart, daß sich die gesamte Energie im Haupthohlleiter des ersten Teils (10) in Richtung auf das zweite Teil (11) fortpflanzt,
- während die zweite Kurzschlußebene (31) in einem zweiten Abstand (d2) von den beiden Anschlüssen (22 und 23) des zweiten Teils (11) angeordnet ist, derart, daß sich die gesamte von den Anschlüssen (12 und 13) des ersten Teils (10) kommende Energie in die Hohlleiter (27 und 28) fortpflanzt, die an das zweite Teil (11) angekoppelt sind.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß Tiefpaßfilter (54, 55 und 56, 57) zwischen die Hybridkoppler und die Anschlüsse (12, 13 und 22, 23) zu den beiden Teilen (10, 11) des Haupthohlleiters, in Höhe dieser Anschlüsse, eingefügt sind und daß zwei cut-off Wellenleiter (35, 36) zu beiden Seiten des Haupthohlleiters angeordnet sind, wobei jeder dieser Wellenleiter (35, 36) mit zwei Anschlüssen (37, 38 und 50, 51) ausgestattet ist, die senkrecht zu ihm und senkrecht zueinander gerichtet sind, wobei ein Hybrideingangskoppler (39) zwei an die Anschlüsse (37, 38) des ersten dieser Hohlleiter (35) angekoppelte Ausgänge besitzt, während ein Hybridausgangskoppler (45) mit seinen Eingängen an die Anschlüsse (50, 51) des zweiten dieser'Hohlleiter (36) angekoppelt ist.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der erste (35) und der zweite (36) an den Haupthohlleiter angekoppelte Hohlleiter jeweils ein an seinem freien Ende geschlossener Hohlleiter ist.
4. Vorrichtung nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie ein Koppelglied aufweist, welches zwischen den beiden Teilen (10, 11) des Haupt-Rundhohlleiters angeordnet ist und an beiden Seiten der Koppelstelle
- einen gerippten Abschnitt (60, 61),
- einen Übergang (62, 63) vom gerippten zum glatten Abschnitt
- und eine glatten Abschnitt (64, 65) aufweist.
EP87105976A 1986-04-28 1987-04-23 Mikrowellen-Drehkopplungsvorrichtung Expired - Lifetime EP0243888B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8606127A FR2598034B1 (fr) 1986-04-28 1986-04-28 Dispositif a joint tournant hyperfrequence
FR8606127 1986-04-28

Publications (2)

Publication Number Publication Date
EP0243888A1 EP0243888A1 (de) 1987-11-04
EP0243888B1 true EP0243888B1 (de) 1991-12-18

Family

ID=9334687

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105976A Expired - Lifetime EP0243888B1 (de) 1986-04-28 1987-04-23 Mikrowellen-Drehkopplungsvorrichtung

Country Status (7)

Country Link
US (1) US4757281A (de)
EP (1) EP0243888B1 (de)
CA (1) CA1260082A (de)
DE (1) DE3775261D1 (de)
ES (1) ES2027988T3 (de)
FR (1) FR2598034B1 (de)
GR (1) GR3003863T3 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8812091D0 (en) * 1988-05-21 1988-06-22 Gen Electric Co Plc Waveguide apparatus
US5877660A (en) * 1994-06-02 1999-03-02 Nihon Dengyo Kosaku Co., Ltd. Phase shifting device with rotatable cylindrical case having driver means on the end walls
JP3908071B2 (ja) * 2002-04-02 2007-04-25 三菱電機株式会社 ロータリージョイント
KR20070068259A (ko) * 2005-12-26 2007-06-29 히타치 기자이 가부시키가이샤 체인·스프로킷 기구, 체인 및 스프로킷
EP1916015B1 (de) * 2006-10-24 2011-06-08 Pompilio Gatto Gerät zur intraoperativen Strahlungstherapie mit Wellenleiter mit zweifacher Drehkupplung
DE202009006651U1 (de) 2008-12-30 2009-07-23 Dr. Nathrath, Trümper, Partnerschaft Ingenieure Mirowellen-Drehkupplung für Rechteckhohlleiter
JP5446552B2 (ja) * 2009-07-30 2014-03-19 ソニー株式会社 無線通信装置、回転構造体、電子機器
US9640851B2 (en) * 2014-05-26 2017-05-02 The Board Of Trustees Of The Leland Stanford Junior University RF waveguide phase-directed power combiners
US10522887B2 (en) * 2017-10-20 2019-12-31 Waymo Llc Communication system for a vehicle comprising a dual channel rotary joint coupled to a plurality of interface waveguides for coupling electromagnetic signals between plural communication chips
US11152675B2 (en) 2017-10-20 2021-10-19 Waymo Llc Communication system for LIDAR sensors used in a vehicle comprising a rotary joint with a bearing waveguide for coupling signals with communication chips
US10742315B1 (en) 2019-05-21 2020-08-11 Waymo Llc Automotive communication system with dielectric waveguide cable and wireless contactless rotary joint

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526383A (en) * 1948-01-23 1950-10-17 Gen Electric Wave guide mode converter
US3668567A (en) * 1970-07-02 1972-06-06 Hughes Aircraft Co Dual mode rotary microwave coupler
FR2488055A1 (fr) * 1980-07-31 1982-02-05 Thomson Csf Transducteur d'antenne pour antenne d'emission-reception et source primaire d'antenne equipee d'un tel transducteur
US4412192A (en) * 1981-08-14 1983-10-25 The United States Of America As Represented By The Secretary Of The Navy Millimeter wave dielectric waveguide rotary joint
FR2577719B1 (fr) * 1985-02-15 1987-05-29 Alcatel Espace Duplexeur de polarisations
EP0196065B1 (de) * 1985-03-27 1990-10-31 Siemens Aktiengesellschaft Polaristationsweiche für Einrichtungen der Höchstfreqenztechnik
IT1181958B (it) * 1985-03-27 1987-09-30 Selenia Spazio Spa Dispositivo per la combinazione senza perdite della potenza rf di due o piu' trasmettitori a microonde funzionanti in parallelo e con qualsiasi rapporto di potenza

Also Published As

Publication number Publication date
FR2598034B1 (fr) 1988-08-26
CA1260082A (fr) 1989-09-26
US4757281A (en) 1988-07-12
DE3775261D1 (de) 1992-01-30
ES2027988T3 (es) 1992-07-01
EP0243888A1 (de) 1987-11-04
FR2598034A1 (fr) 1987-10-30
GR3003863T3 (de) 1993-03-16

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