[go: up one dir, main page]

WO2015181405A1 - Transducteur orthomode à polarisation commutable - Google Patents

Transducteur orthomode à polarisation commutable Download PDF

Info

Publication number
WO2015181405A1
WO2015181405A1 PCT/ES2014/070445 ES2014070445W WO2015181405A1 WO 2015181405 A1 WO2015181405 A1 WO 2015181405A1 ES 2014070445 W ES2014070445 W ES 2014070445W WO 2015181405 A1 WO2015181405 A1 WO 2015181405A1
Authority
WO
WIPO (PCT)
Prior art keywords
switchable
transducer
orthodontic
polarized
phase
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.)
Ceased
Application number
PCT/ES2014/070445
Other languages
English (en)
Spanish (es)
Inventor
Jose Maria Montero Ruiz
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.)
RYMSA ESPACIO SA
Original Assignee
RYMSA ESPACIO 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 RYMSA ESPACIO SA filed Critical RYMSA ESPACIO SA
Priority to PCT/ES2014/070445 priority Critical patent/WO2015181405A1/fr
Publication of WO2015181405A1 publication Critical patent/WO2015181405A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
    • H01P1/161—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion sustaining two independent orthogonal modes, e.g. orthomode transducer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/18—Phase-shifters
    • H01P1/182—Waveguide phase-shifters

Definitions

  • a polarizable switchable orthodontic transducer that allows to combine in a single set the functionalities of an orthodontic transducer and polarization switching with a minimum number of elements, where the number of Connections to be made are reduced, and the final volume occupied too.
  • the present invention characterizes the simplicity of the polarized switchable orthomode transducer, presenting a minimum number of connections and a reduced final volume.
  • the present invention is circumscribed both within the scope of orthomodal transducers and between polarization switching systems or means of application in orthomodal transducers.
  • An orthomodal transducer is a device that has a common door (exit), made in a circular or square guide, and that supports two propagating electromagnetic modes with independent polarizations, and two input doors isolated from each other.
  • the common door is connected to a horn antenna.
  • each entrance door excites one of the linear polarizations in the common door.
  • polarization is circular.
  • the common door there is a mode in circular polarization to the right and another mode in circular polarization to the left, associating the entrance doors with the polarization generated in the common door.
  • orthomodal transducers for linear and circular polarization have physically different designs, and can only be used in a type of polarization, either linear or circular.
  • the switching on the entrance doors is based on the use of a quadrature coupler (hybrid -3dB) and a phase changer made by means of a switch with outdated lines.
  • the switching on the common door is done by adding a rotatable polarizer between two rotating joints.
  • polarization switching systems that are associated with an orthodontic transducer are known, such as that described in patent application EP20130802077.1 Referred to a switching device for parallel or hybrid transmission comprising two quadrature couplers same, one input and one output, a rotary spinner and a fixed spinner, both arranged between both couplers.
  • the switching device is then associated with an orthodontic transducer, configuring a set that can be improved, in terms of the number of necessary connections and the final volume that the equipment occupies, the latter being very relevant condition, since as the equipment is mounted on communications satellites, the final volume that the set requires is very important.
  • the object of the invention is a polarized switchable orthodontic transducer comprising:
  • phase shifters one at each of the outputs of the coupler, one of them being fixed (0 Q ) and another switchable (0/180 Q )
  • an orthodontic transducer specific for intermediate polarizations consisting of two specific entrance doors connected to the phase shifters and a common exit door.
  • the switchable OMT polarization state is given by the phase state provided by the switchable phase shifter, 0 Q or 180 Q.
  • the specific orthodontic transducer works in a state of intermediate polarization with respect to the orthomodal transducers used so far, which provide linear dual polarization or circular dual polarization.
  • the polarization obtained in the common door is elliptical to the right and left with an axial ratio of 7.6 dB, while in the orthomodal transducers so far used the axial ratio is 0 dB in the case of polarization circular or infinite in the case of linear polarization. Therefore, the polarized switchable orthodontic transducer integrates in a single device the orthomodal transducer itself and polarization switching means, consisting of a single input coupler and two phase shifters, one fixed and one switchable, both mounted at the output of the coupler. , the orthomodal transducer must be a specific one for intermediate polarizations, thus achieving a set of a minimum number of connections and a reduced final volume.
  • the traditional orthodontic transducer (OMT) that provides circular polarization is called Septum / OMT and technically speaking it provides a differential phase of 90 Q between odd and even excitations of its access doors.
  • the specific orthodontic transducer (OMT S / 45 9 ) used in the invention is constructively similar, but provides a differential phase of 45 Q or 135 Q. Electromagnetic simulations show that it is feasible to achieve proper operation of OMT S / 45 9 in bandwidths similar to the traditional Septum, (ie 12% of percentage band).
  • Figure 1 corresponds to the scheme of an embodiment of a polarization switching device as is known in the state of the art.
  • Said switching device comprises:
  • an orthodontic transducer (5) that has as its entrance doors the exit doors (C) and (D) of the switch, and as an exit door a common door (E) that is mainly connected to a horn antenna.
  • phase shifters (3) and (4) one at each of the coupler outputs, one of them being a fixed coupler (3) (0 Q ) and another switchable coupler (4) (0/180 Q )
  • a specific orthodontic transducer (6) of intermediate polarizations consisting of two specific entrance doors connected to the phase shifters (3) and (4) and a common output door (E).
  • the above values can be exchanged giving rise to the functional exchange of the entrance doors.
  • the switchable OMT polarization state is given by the phase state provided by the switchable phase shifter, 0 Q or 180 Q.
  • the specific orthodontic transducer works in a state of intermediate polarization with respect to the orthomodal transducers used so far, which provide linear dual polarization or circular dual polarization.
  • the polarization obtained in the common door is elliptical to the right and left with an axial ratio of 7.6 dB, while in the orthodontic transducers so far used, the axial ratio is 0 dB for the case of circular or infinite polarization in the case of linear polarization.
  • the specific orthodontic transducer (6) (OMT S / 45 Q ) of intermediate polarizations provides a differential phase of 45 Q , being equally valid if it provides a differential phase of 135 Q in which case the access positions (A) and (B) They are exchanged functionally.
  • Components such as the input coupler and phase shifters can be made in various technologies (coaxial, microstrip, waveguide ).
  • the OMT S / 45 9 will have the common door (E) in square or circular guide, but its access doors can be implemented in diverse technology (coaxial, microstrip, waveguide ).
  • the switchable phase shifter (0 Q / 180 Q ) can be performed in microstrip by electronic switching to PIN diodes.
  • the switchable phase shifter can be performed in a waveguide by means of a twist twist with a 90 Q turn by electromechanical switching.
  • the switching elements are located in the access doors and it is not necessary that both components be close to the antenna. They may be close to the receiving or transmitting equipment, where the environmental and mechanical working conditions are less harsh than for the antenna. This also frees up space in the antenna zone versus OMT based on rotatable polarizer.
  • the turning element (rotary spinner) is much less bulky than a common gate rotary polarizer, whereby, the turning power requirements are less stringent for the present polarized switchable orthodontic transducer.
  • the input coupler and phase shifters can be located near the receiving or transmitting equipment, freeing up the antenna area from space, in addition of supposing a smaller requirement of turning power.
  • Figure 3 shows an implementation in waveguide technology of the polarized switchable orthodontic transducer, with the entrance gates (A) and (B) being connected, connected to a coupler (1) on whose outputs a passive phase shifter (3) is mounted. ) and an active phase shifter (4) made by means of a rotary spinner, whose outputs are connected to a specific intermediate polarized orthodontic transducer (6), resulting in a much more compact set in final volume, than if the construction of the Figure 1, corresponding to the state of the art.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

La présente invention concerne un transducteur orthomode à polarisation commutable qui comprend: - Un coupleur d'entrée (1) qui a un couplage de C=8,3 dB au trajet croisé et de 0,69 dB au trajet direct, ou inversement. - Deux déphaseurs (3) et (4) reliés individuellement à chacune des sorties du coupleur, un des déphaseurs étant un déphaseur fixe (3) (0°) et l'autre étant un déphaseur commutable (3) (0/180°) - Et un transducteur orthomode spécifique (6) à polarisation intermédiaire, qui comporte deux portes d'entrée spécifiques reliées aux déphaseurs (3) et (4) et une porte commune (E) de sortie produisant une différence de phase de 45° ou de 135° Avec l'ensemble on peut obtenir une réduction du nombre de connexions, un volume final moindre et on peut également situer une partie de l'ensemble à proximité des équipements récepteurs ou émetteurs, ce qui libère ainsi de l'espace dans la zone de l'antenne, et obtenir une puissance de rotation plus faible.
PCT/ES2014/070445 2014-05-30 2014-05-30 Transducteur orthomode à polarisation commutable Ceased WO2015181405A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2014/070445 WO2015181405A1 (fr) 2014-05-30 2014-05-30 Transducteur orthomode à polarisation commutable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2014/070445 WO2015181405A1 (fr) 2014-05-30 2014-05-30 Transducteur orthomode à polarisation commutable

Publications (1)

Publication Number Publication Date
WO2015181405A1 true WO2015181405A1 (fr) 2015-12-03

Family

ID=51177091

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2014/070445 Ceased WO2015181405A1 (fr) 2014-05-30 2014-05-30 Transducteur orthomode à polarisation commutable

Country Status (1)

Country Link
WO (1) WO2015181405A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11474138B1 (en) 2021-10-19 2022-10-18 Rohde & Schwarz Gmbh & Co. Kg Over-the-air measurement system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4710734A (en) * 1986-06-05 1987-12-01 Itt Gilfillan, A Division Of Itt Corporation Microwave polarization control network
EP1693922A1 (fr) * 2003-10-30 2006-08-23 Mitsubishi Denki Kabushiki Kaisha Unite antenne

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4710734A (en) * 1986-06-05 1987-12-01 Itt Gilfillan, A Division Of Itt Corporation Microwave polarization control network
EP1693922A1 (fr) * 2003-10-30 2006-08-23 Mitsubishi Denki Kabushiki Kaisha Unite antenne

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JORGE A RUIZ-CRUZ ET AL: "Waveguide Antenna Feeders With Integrated Reconfigurable Dual Circular Polarization", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 59, no. 12, 1 December 2011 (2011-12-01), pages 3365 - 3374, XP011389173, ISSN: 0018-9480, DOI: 10.1109/TMTT.2011.2170581 *
WEIYE ZHONG ET AL: "X-band compact septum polarizer design", MICROWAVE TECHNOLOGY&COMPUTATIONAL ELECTROMAGNETICS (ICMTCE), 2011 IEEE INTERNATIONAL CONFERENCE ON, IEEE, 22 May 2011 (2011-05-22), pages 167 - 170, XP031950777, ISBN: 978-1-4244-8556-7, DOI: 10.1109/ICMTCE.2011.5915191 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11474138B1 (en) 2021-10-19 2022-10-18 Rohde & Schwarz Gmbh & Co. Kg Over-the-air measurement system

Similar Documents

Publication Publication Date Title
WO2008008702A3 (fr) Transducteur orthomode
EP2806567B1 (fr) Commutateur de ferrite modulaire servant à construire des réseaux de commutation
KR102434547B1 (ko) 이중 대역 안테나 구성물
WO2010061008A1 (fr) Transducteur orthomode compact
JP2015092665A (ja) Ｅ平面内のｔカプラを備えたパワースプリッタ、放射アレイ、およびそのような放射アレイを備えたアンテナ
US4884045A (en) Fast switching reciprocal ferrite phase shifter
US9812748B2 (en) Twist for connecting orthogonal waveguides in a single housing structure
WO2015181405A1 (fr) Transducteur orthomode à polarisation commutable
CA2872270A1 (fr) Systemes et procedes pour dephaseurs a circulateur en ferrite
WO2012152957A1 (fr) Déphaseur stripline linéaire
KR20190103777A (ko) 소형화된 구조의 페이즈 쉬프터
ITMI20112186A1 (it) Combinatore ortomodale a porte e segnali monomodali di ingresso/uscita paralleli
BRPI0621235A2 (pt) comutador de freqüência de rádio
WO2015007926A1 (fr) Dispositif de commutation pour transmission parallèle ou hybride
ES2555634A1 (es) Divisor/combinador bi-modal de potencia en guía de onda
US3031631A (en) Waveguide switches
CA2912799A1 (fr) Appareil et procede de multiplexeur de guide d'onde
Choubey et al. Novel wideband orthomode transducer for 70–95GHz
CA3089637A1 (fr) Commutateur a torsion par pas de polariseur d'alimentation
ES2672338B2 (es) Dispositivo de cruce de microondas
KR101605033B1 (ko) 이중편파 도파관슬롯 배열안테나
US3546634A (en) Ferrite polarizers comprising latchable ferrite bodies
CN204179181U (zh) 一种微波铁氧体双模同极性移相器
CN104577285A (zh) 四端口微波网络
CN104091999B (zh) E面十字形功分器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14738869

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14738869

Country of ref document: EP

Kind code of ref document: A1