EP0045682B1 - Speiseanordnung für eine Sende/Empfangsantenne - Google Patents
Speiseanordnung für eine Sende/Empfangsantenne Download PDFInfo
- Publication number
- EP0045682B1 EP0045682B1 EP81401188A EP81401188A EP0045682B1 EP 0045682 B1 EP0045682 B1 EP 0045682B1 EP 81401188 A EP81401188 A EP 81401188A EP 81401188 A EP81401188 A EP 81401188A EP 0045682 B1 EP0045682 B1 EP 0045682B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polarization
- duplexer
- frequency band
- openings
- antenna
- 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
Links
- 230000007704 transition Effects 0.000 claims abstract description 15
- 230000010287 polarization Effects 0.000 claims description 57
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 8
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000005388 cross polarization Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 description 1
- 241001080024 Telles Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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 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 has two lateral polarization openings, 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 a support dielectric, 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 constituted 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, the internal section of which is 35 mm by 16 mm; the walls of the guides 31, 32 are crossed by adjustment 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 the opening of the cylindrical guide 30 constitutes the emission access, E, of the transducer.
- the antenna transducer according to FIGS. 1 and 2 is designed to operate in transmission with a frequency band included in the 6 GHz band (that is to say the band going from 5.925 to 6.425 GHz) and in reception with a frequency band in the 4 GHz band (i.e. the band from 3.7 to 4.2 GHz).
- This antenna transducer operates as shown below.
- the quasi-optical filters 13, 14, 15 have been designed to behave like short circuits for "reception” waves (4 GHz) and to let “emission” waves (6 GHz) pass.
- the first short-circuit plane being placed 19 mm from the opening where the guide 12 terminates, that is to say approximately ⁇ / 4 ( ⁇ : average wavelength in the reception band), the energy of the "reception” waves reflected by this short circuit is summed in phase, when it arrives in the guide 12, with the energy "reception” which arrives directly in this guide, the path difference being in fact twice JL / 4 or ⁇ / 2.
- 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 with respect to 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 polarization crossed with respect to 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 transmitted wave initially rectilinear in the polarization duplexer 3 becomes circular, for 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 optical-quay filters and would be sent to the radiating part of the antenna 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 ,, E z and two pairs reception access R, R '"R 2 R' 2 .
Landscapes
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
- Aerials With Secondary Devices (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Support Of Aerials (AREA)
- Burglar Alarm Systems (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Claims (5)
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 |
---|---|---|---|
FR8016920 | 1980-07-31 | ||
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 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0045682A1 EP0045682A1 (de) | 1982-02-10 |
EP0045682B1 true 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) |
Families Citing this family (26)
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 |
IT1155664B (it) * | 1982-03-25 | 1987-01-28 | Sip | Dispositivo di guida d onda per la separazione di segnali a radiofrequenza di diversa frequenza e polarizzazione |
US4504805A (en) * | 1982-06-04 | 1985-03-12 | Andrew Corporation | Multi-port combiner for multi-frequency microwave signals |
FR2529392B1 (fr) * | 1982-06-25 | 1985-06-28 | Thomson Csf | Dispositif de multiplexage pour grouper deux bandes de frequences et multiplexeur comportant un tel dispositif |
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. |
FR2598034B1 (fr) * | 1986-04-28 | 1988-08-26 | Alcatel Espace | Dispositif a joint tournant hyperfrequence |
DE3634772A1 (de) * | 1986-09-08 | 1988-03-17 | Kabelmetal Electro Gmbh | Antennenerreger fuer mindestens zwei unterschiedliche frequenzbaender |
JPS6464401A (en) * | 1987-09-04 | 1989-03-10 | Nec Corp | Axial ratio compensator |
JPH046601U (de) * | 1990-05-02 | 1992-01-22 | ||
EP0468620B1 (de) * | 1990-07-26 | 1995-12-27 | Space Systems / Loral, Inc. | Zweibandantenne mit Mehrfachausnutzung der Frequenzbänder |
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 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2931992A (en) * | 1956-07-02 | 1960-04-05 | Bell Telephone Labor Inc | Microwave impedance branch |
US3112460A (en) * | 1960-12-29 | 1963-11-26 | Bell Telephone Labor Inc | Electromagnetic wave devices |
DE1591489B2 (de) * | 1967-04-28 | 1976-10-21 | Siemens AG, 1000 Berlin und 8000 München | 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 |
DE2443166C3 (de) * | 1974-09-10 | 1985-05-30 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Systemweiche zur Trennung zweier Signale, die aus je zwei doppelt polarisierten Frequenzbändern bestehen |
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 |
JPS543449A (en) * | 1977-06-10 | 1979-01-11 | Nippon Telegr & Teleph Corp <Ntt> | Semioptical band blooking filter |
-
1980
- 1980-07-31 FR FR8016920A patent/FR2488055A1/fr active Granted
-
1981
- 1981-07-24 DE DE8181401188T patent/DE3166182D1/de not_active Expired
- 1981-07-24 EP EP81401188A patent/EP0045682B1/de not_active Expired
- 1981-07-24 AT AT81401188T patent/ATE9521T1/de not_active IP Right Cessation
- 1981-07-29 US US06/287,946 patent/US4410866A/en not_active Expired - Fee Related
- 1981-07-31 JP JP56120591A patent/JPS5753103A/ja active Granted
Non-Patent Citations (1)
Title |
---|
"Tables of Elements Values for the Distributed Low Pass Prototype Filter", IEEE Transactions on Microwave Theory and Techniques, septembre 1965 - MTT 13, no. 5, pp. 514-517 * |
Also Published As
Publication number | Publication date |
---|---|
FR2488055A1 (fr) | 1982-02-05 |
JPS5753103A (en) | 1982-03-30 |
EP0045682A1 (de) | 1982-02-10 |
ATE9521T1 (de) | 1984-10-15 |
JPS6355801B2 (de) | 1988-11-04 |
US4410866A (en) | 1983-10-18 |
FR2488055B1 (de) | 1984-07-13 |
DE3166182D1 (en) | 1984-10-25 |
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