EP0045682A1 - Speiseanordnung für eine Sende/Empfangsantenne - Google Patents

Speiseanordnung für eine Sende/Empfangsantenne Download PDF

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Publication number
EP0045682A1
EP0045682A1 EP81401188A EP81401188A EP0045682A1 EP 0045682 A1 EP0045682 A1 EP 0045682A1 EP 81401188 A EP81401188 A EP 81401188A EP 81401188 A EP81401188 A EP 81401188A EP 0045682 A1 EP0045682 A1 EP 0045682A1
Authority
EP
European Patent Office
Prior art keywords
polarization
duplexer
antenna
openings
frequency band
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP81401188A
Other languages
English (en)
French (fr)
Other versions
EP0045682B1 (de
Inventor
Nhu Bui Hai
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
Original Assignee
Thomson CSF 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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to AT81401188T priority Critical patent/ATE9521T1/de
Publication of EP0045682A1 publication Critical patent/EP0045682A1/de
Application granted granted Critical
Publication of EP0045682B1 publication Critical patent/EP0045682B1/de
Expired 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
    • H01P1/16—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
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
    • H01P1/2131—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies with combining or separating polarisations

Definitions

  • the present invention relates to an antenna transducer, comprising, in series from an access intended to be coupled to the radiating part of an antenna, a first polarization duplexer intended to work in a first frequency band, a transition element consisting of a variable section guide and a second polarization duplexer intended to work in a second frequency band.
  • the purpose of the invention is to significantly reduce the above drawbacks.
  • FIGS 1 and 2 are respectively a side diagram and a top diagram of an antenna transducer, the internal elements of which are shown by transparency.
  • This antenna transducer is designed to allow the operation of an antenna in transmission and in reception with a single access, E, for the transmission, a single access, R, for the reception and a common access, A, intended for be coupled to the primary source of an antenna by a polarizer.
  • the first polarization duplexer, 1, has a body constituted by a cylindrical guide, 10, with an internal diameter of 54 mm, one end of which constitutes the common access A and the other end of which is connected to the transition element 2.
  • This guide presents two openings lateral polarization, constituted by rectangular holes of 7 mm by 58 mm, drilled in its wall, at the same level but at 90 ° from each other.
  • Two rectangular guides, 11, 12, of 7 mm by 58 mm open into these openings; they comprise adjustment adjustment screws, such as 18 and 19 and, at their end where they terminate in the cylindrical guide 10, a pair (16a, 16b) of resonant dipoles; these dipoles consist of metallic "T" s with a 10 mm horizontal bar.
  • the guide 12 has its end opposite to the cylindrical guide which constitutes the reception access, R, of the antenna transducer.
  • a resistive load 17 of conventional type is placed in the guide 11, at the end opposite to the cylindrical guide 10, a resistive load 17 of conventional type is placed; in the case of the example described, this charge is made of a material sold under the brand DISARAL.
  • FIG. 3 shows in particular how the filter 13 is mounted: this filter consists of a crossed metal dipole, 13b, deposited on one. dielectric support, 13a, made of beryllium oxide, integral with the wall of the cylindrical guide 10 and perpendicular to the direction of propagation of the waves in this guide 10.
  • the dipole 13b has an overall dimension of 26 mm.
  • the transition element 2 is a guide in a circular truncated cone, the maximum internal diameter of which is 54 mm and the minimum internal diameter of 34 mm.
  • the second polarization duplexer according to FIGS. 1 and 2 has a body formed by a cylindrical guide, 30, with an internal diameter of 34 mm.
  • Two rectangular openings of 35 mm by 16 mm are drilled at 90 ° from each other in the side wall of the cylindrical guide 30.
  • In these openings terminate two rectangular guides, 31, 32, whose internal section is 35 mm by 16 mm; the walls of the guides 31, 32 are crossed by adaptation adjustment screws, such as 34, 35.
  • a resistive load, 33, of the same type as the resistive load 17 is placed in the guide 32, on the side of the end of this; guide opposite to the cylindrical guide 30.
  • the end of the guide 31 opposite to the opening of the cylindrical guide 30 constitutes the emission access, E, of the transducer.
  • the “T” dipoles, placed in the lateral openings of the guide 10 are calculated to resonate at the average emission frequency, they therefore constitute short circuits for the "emission” waves. These dipoles thus make it possible to perfect the emission-reception decoupling of the quasi-optical filters by letting the "reception” waves pass and by rejecting the "emission” waves.
  • the load 17 it plays the role of a "mode absorber” for the cross polarization of that received, due to parasitic reflections.
  • transition element "round guide-round guide", 2 allows a gradual passage from the section of the polarization duplexer 1 to the section of the polarization duplexer 3.
  • the resistive load 33 placed in the lateral guide 32 of the polarization duplexer 3 plays the role of a "mode absorber" for the cross polarization of that emitted.
  • This cross polarization arises by parasitic reflections at the level of the radiating part of the antenna: on the sub-reflector in the case, for example, of a Cassegrain antenna and at the level of the antenna horn.
  • the emitted wave initially rectilinear in the polarization duplexer 3 becomes circular, by example right circular after passing through the polarization coupling to the antenna, then is transformed into left circular polarization after reflection. It then returns to the polarizer and returns to the polarization duplexer 1 with a reverse polarization from its original polarization.
  • This reverse polarization wave if it was not absorbed by the resistive load 17, would deteriorate the ellipticity rate because it would be reflected on the short circuit formed by the quasi-optical filters and would be sent to the radiating part of the ' d ntenne with a certain phase shift on the original wave.
  • the transducer In combination with a polarizer and a horn with a low ellipticity rate, that is to say much less than 0.5 dB, the transducer which has just been described makes it possible to obtain a primary source with high purity of polarization. : less than 0.5 db.
  • This transducer was initially designed for antennas of earth stations of the Cassegrain type or with illumination by the hearth, these antennas being able to be moreover with symmetry of revolution or not.
  • FIG. 5 shows such an antenna.
  • FIG. 5 schematically shows a Cassegrain antenna with symmetry of revolution, seen in section, with its horn 40, its hyperboloidal sub-reflector 41 and its main reflector 42 of paraboloidal shape; a polarizer 43, the role of which is to transform a field with rectilinear polarization into a field with circular polarization and vice versa, couples the radiating part of the antenna, 40, 41, 42, to an antenna transducer, 44, according to Figures 1 and 2.
  • FIG. 4 Another embodiment of an antenna transducer according to the invention is given in FIG. 4.
  • the antenna transducer shown in this figure is an antenna transducer with two transmission ports E 1 , E 2 and two pairs reception access RR ' 1 , R 2 R' 2 .

Landscapes

  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Burglar Alarm Systems (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Support Of Aerials (AREA)
EP81401188A 1980-07-31 1981-07-24 Speiseanordnung für eine Sende/Empfangsantenne Expired EP0045682B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81401188T ATE9521T1 (de) 1980-07-31 1981-07-24 Speiseanordnung fuer eine sende/empfangsantenne.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8016920A FR2488055A1 (fr) 1980-07-31 1980-07-31 Transducteur d'antenne pour antenne d'emission-reception et source primaire d'antenne equipee d'un tel transducteur
FR8016920 1980-07-31

Publications (2)

Publication Number Publication Date
EP0045682A1 true EP0045682A1 (de) 1982-02-10
EP0045682B1 EP0045682B1 (de) 1984-09-19

Family

ID=9244753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401188A Expired EP0045682B1 (de) 1980-07-31 1981-07-24 Speiseanordnung für eine Sende/Empfangsantenne

Country Status (6)

Country Link
US (1) US4410866A (de)
EP (1) EP0045682B1 (de)
JP (1) JPS5753103A (de)
AT (1) ATE9521T1 (de)
DE (1) DE3166182D1 (de)
FR (1) FR2488055A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524209A1 (fr) * 1982-03-25 1983-09-30 Italiana Esercizio Telefon Dispositif guide d'ondes, capable de separer des signaux de radiofrequence a double bande et double polarisation
FR2529392A1 (fr) * 1982-06-25 1983-12-30 Thomson Csf Dispositif de multiplexage pour grouper deux bandes de frequences et multiplexeur comportant un tel dispositif
EP0096461A3 (en) * 1982-06-04 1986-03-12 Andrew Corporation Microwave systems
FR2598034A1 (fr) * 1986-04-28 1987-10-30 Alcatel Espace Dispositif a joint tournant hyperfrequence
FR2603742A1 (fr) * 1986-09-08 1988-03-11 Kabelmetal Electro Gmbh Excitateur d'antenne pour au moins deux bandes de frequence differentes
EP0468620A3 (en) * 1990-07-26 1992-05-20 Space Systems / Loral Inc. Dual band frequency reuse antenna

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502405A1 (fr) * 1981-03-18 1982-09-24 Portenseigne Systeme de reception de signaux hyperfrequences a polarisations orthogonales
JPS5857803A (ja) * 1981-09-30 1983-04-06 Nippon Telegr & Teleph Corp <Ntt> 一次放射器
JPS5927601U (ja) * 1982-08-13 1984-02-21 日本電気株式会社 直交偏分波器
JPS59117303A (ja) * 1982-12-23 1984-07-06 Nec Corp 偏分波器
US4491810A (en) * 1983-01-28 1985-01-01 Andrew Corporation Multi-port, multi-frequency microwave combiner with overmoded square waveguide section
DE3439413A1 (de) * 1984-10-27 1986-04-30 kabelmetal electro GmbH, 3000 Hannover Antennenerreger fuer mindestens zwei unterschiedliche frequenzbaender
DE3439416A1 (de) * 1984-10-27 1986-04-30 kabelmetal electro GmbH, 3000 Hannover Antennenerreger
DE3439414A1 (de) * 1984-10-27 1986-04-30 kabelmetal electro GmbH, 3000 Hannover Antennenerreger fuer mindestens zwei unterschiedliche frequenzbaender
US4783639A (en) * 1985-11-21 1988-11-08 Hughes Aircraft Company Wideband microwave diplexer including band pass and band stop resonators
FR2593644B1 (fr) * 1986-01-28 1988-03-11 Alcatel Espace Dispositif duplexeur de polarisation et de frequences a trois acces.
JPS6464401A (en) * 1987-09-04 1989-03-10 Nec Corp Axial ratio compensator
JPH046601U (de) * 1990-05-02 1992-01-22
US5162808A (en) * 1990-12-18 1992-11-10 Prodelin Corporation Antenna feed with selectable relative polarization
US5959591A (en) * 1997-08-20 1999-09-28 Sandia Corporation Transverse electromagnetic horn antenna with resistively-loaded exterior surfaces
US6727776B2 (en) 2001-02-09 2004-04-27 Sarnoff Corporation Device for propagating radio frequency signals in planar circuits
US6943744B1 (en) 2003-07-09 2005-09-13 Patriot Antenna Systems, Inc. Waveguide diplexing and filtering device
US7469131B2 (en) * 2004-09-14 2008-12-23 Nokia Corporation Terminal and associated transducer assembly and method for selectively transducing in at least two frequency bands
CN101110491B (zh) * 2006-07-19 2011-02-16 上海杰盛无线通讯设备有限公司 数字微波室外单元中双工器
JP6355525B2 (ja) * 2014-10-29 2018-07-11 三菱電機株式会社 偏波分離回路
RU2650719C1 (ru) * 2017-04-03 2018-04-17 Федеральное государственное унитарное предприятие Ордена Трудового Красного Знамени научно-исследовательский институт радио Разделитель ортогонально-поляризованных волн

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2931992A (en) * 1956-07-02 1960-04-05 Bell Telephone Labor Inc Microwave impedance branch
GB1003286A (en) * 1960-12-29 1965-09-02 Western Electric Co Improvements in or relating to electromagnetic wave hybrid junctions
DE1591489A1 (de) * 1967-04-28 1970-04-16 Siemens Ag Aus zwei gekreuzten runden Hohlleitern bestehende Anordnung
FR2135116A1 (de) * 1971-06-01 1972-12-15 Lozes Robert
US3731235A (en) * 1971-11-03 1973-05-01 Gte Sylvania Inc Dual polarized diplexer
FR2284996A1 (fr) * 1974-09-10 1976-04-09 Licentia Gmbh Aiguillage de filtrage composite pour la separation de deux signaux constitues chacun par deux bandes de frequence doublement polarisees
FR2349968A1 (fr) * 1976-04-27 1977-11-25 Thomson Csf Guide d'ondes a acces lateral et multiplexeur-demultiplexeur muni d'un tel guide
US4077039A (en) * 1976-12-20 1978-02-28 Bell Telephone Laboratories, Incorporated Launching and/or receiving network for an antenna feedhorn

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS543449A (en) * 1977-06-10 1979-01-11 Nippon Telegr & Teleph Corp <Ntt> Semioptical band blooking filter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2931992A (en) * 1956-07-02 1960-04-05 Bell Telephone Labor Inc Microwave impedance branch
GB1003286A (en) * 1960-12-29 1965-09-02 Western Electric Co Improvements in or relating to electromagnetic wave hybrid junctions
DE1591489A1 (de) * 1967-04-28 1970-04-16 Siemens Ag Aus zwei gekreuzten runden Hohlleitern bestehende Anordnung
FR2135116A1 (de) * 1971-06-01 1972-12-15 Lozes Robert
US3731235A (en) * 1971-11-03 1973-05-01 Gte Sylvania Inc Dual polarized diplexer
FR2284996A1 (fr) * 1974-09-10 1976-04-09 Licentia Gmbh Aiguillage de filtrage composite pour la separation de deux signaux constitues chacun par deux bandes de frequence doublement polarisees
FR2349968A1 (fr) * 1976-04-27 1977-11-25 Thomson Csf Guide d'ondes a acces lateral et multiplexeur-demultiplexeur muni d'un tel guide
US4077039A (en) * 1976-12-20 1978-02-28 Bell Telephone Laboratories, Incorporated Launching and/or receiving network for an antenna feedhorn

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524209A1 (fr) * 1982-03-25 1983-09-30 Italiana Esercizio Telefon Dispositif guide d'ondes, capable de separer des signaux de radiofrequence a double bande et double polarisation
EP0096461A3 (en) * 1982-06-04 1986-03-12 Andrew Corporation Microwave systems
FR2529392A1 (fr) * 1982-06-25 1983-12-30 Thomson Csf Dispositif de multiplexage pour grouper deux bandes de frequences et multiplexeur comportant un tel dispositif
EP0098192A1 (de) * 1982-06-25 1984-01-11 Alcatel Thomson Faisceaux Hertziens Multiplexanordnung zum Zusammenfügen von zwei Frequenzbändern
US4546471A (en) * 1982-06-25 1985-10-08 Thomson Csf Multiplexing device for grouping two frequency bands
FR2598034A1 (fr) * 1986-04-28 1987-10-30 Alcatel Espace Dispositif a joint tournant hyperfrequence
EP0243888A1 (de) * 1986-04-28 1987-11-04 Alcatel Espace Mikrowellen-Drehkopplungsvorrichtung
US4757281A (en) * 1986-04-28 1988-07-12 Alcatel Espace Rotary microwave joint device
FR2603742A1 (fr) * 1986-09-08 1988-03-11 Kabelmetal Electro Gmbh Excitateur d'antenne pour au moins deux bandes de frequence differentes
EP0468620A3 (en) * 1990-07-26 1992-05-20 Space Systems / Loral Inc. Dual band frequency reuse antenna

Also Published As

Publication number Publication date
DE3166182D1 (en) 1984-10-25
JPS5753103A (en) 1982-03-30
JPS6355801B2 (de) 1988-11-04
FR2488055B1 (de) 1984-07-13
EP0045682B1 (de) 1984-09-19
ATE9521T1 (de) 1984-10-15
FR2488055A1 (fr) 1982-02-05
US4410866A (en) 1983-10-18

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