EP0252269A1 - Dispositif de conversion - Google Patents

Dispositif de conversion Download PDF

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Publication number
EP0252269A1
EP0252269A1 EP87107718A EP87107718A EP0252269A1 EP 0252269 A1 EP0252269 A1 EP 0252269A1 EP 87107718 A EP87107718 A EP 87107718A EP 87107718 A EP87107718 A EP 87107718A EP 0252269 A1 EP0252269 A1 EP 0252269A1
Authority
EP
European Patent Office
Prior art keywords
housing
converter system
waveguide
electronics
converter
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.)
Withdrawn
Application number
EP87107718A
Other languages
German (de)
English (en)
Inventor
Jürgen Ing. grad. Göhler
Jörg Dipl.-Ing. Hehlgans
Martin Dipl.-Ing. Koch
Bernd Dipl.-Ing. Anger
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.)
Hans Kolbe and Co
Original Assignee
Hans Kolbe and Co
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 Hans Kolbe and Co filed Critical Hans Kolbe and Co
Publication of EP0252269A1 publication Critical patent/EP0252269A1/fr
Withdrawn legal-status Critical Current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
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
    • H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
    • H01P5/107—Hollow-waveguide/strip-line transitions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/165—Auxiliary devices for rotating the plane of polarisation
    • H01P1/17—Auxiliary devices for rotating the plane of polarisation for producing a continuously rotating polarisation, e.g. circular polarisation
    • H01P1/173—Auxiliary devices for rotating the plane of polarisation for producing a continuously rotating polarisation, e.g. circular polarisation using a conductive element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/247—Supports; Mounting means by structural association with other equipment or articles with receiving set with frequency mixer, e.g. for direct satellite reception or Doppler radar

Definitions

  • the invention relates to a converter system of the type described in the preamble of claim 1 and known, for example, from EP-PS 059 927.
  • a converter system is used to convert the high-frequency microwave signals incident on the exciter, for example emitted by a satellite, in the GHz range in signals with a lower frequency (intermediate frequency). This should be done without any loss of quality if possible, and the signals should also be amplified.
  • the known design is a receiving device for left and right rotating circularly polarized microwave signals.
  • a dielectric, conical insert is used as the exciter, which is inserted in a funnel-shaped exciter horn of the waveguide. This dielectric insert projects in part into the antenna-side end of the waveguide and acts there with its flattened ends as a polarization converter.
  • the part of the waveguide which receives the dielectric polarization converter is designed as a high-pass filter.
  • Another, adjoining part of the waveguide with a larger diameter is designed as a bandpass filter.
  • the electronics are seated on a microstrip conductor substrate, which is soldered with its ground surface at a right angle to the end of the waveguide remote from the exciter.
  • Four coupling pins protrude through the microstrip substrate into the waveguide for coupling the signals of both linear polarization directions.
  • the known design has a polarization switch.
  • the invention has for its object the manufacturing and assembly costs and the space required for a converter tersystem of the type mentioned to reduce while increasing reliability.
  • This object is achieved in a converter system of the type mentioned at the outset by the characterizing features of claim 1.
  • the one-piece, compact design of the housing enables simple manufacture, for example in an injection molding process.
  • Such a housing is mechanically very stable. This is advantageous in view of the fact that the converter system as part of an external antenna unit can be exposed to large fluctuations in the ambient temperature. Furthermore, great stability is required because of the wind, vibration and snow and ice deposits that occur with such antennas.
  • the molded receptacle for the electronics on the longitudinal outer wall of the housing enables a slim design that takes up little space.
  • This receptacle is used to install the electronics, which are preferably built on ceramic boards, which in turn are manufactured using thick-film technology.
  • This technology enables inexpensive production with very good high-frequency properties.
  • the rigid, rigid housing there is no danger that the electronics once inserted will be disturbed by mechanical influences.
  • the very sensitive decoupling antenna which is attached to the electronics board on the one hand and on the other hand penetrates a hole formed in the housing wall and projects into the waveguide.
  • a polarization converter e.g. B.
  • the polarization converter converts the circularly polarized signals into orthogonally-linearly polarized signals. If, for example, the exciter receives a left-handed polarized wave, the polarization converter converts it into a horizontally linearly polarized, for example Wave converted. If the pathogen receives z. B. a clockwise polarized wave, this is z. B. converted into a perpendicular linearly polarized wave. So one or two circular polarization directions can be received.
  • the two linear waves are separated in a polarization switch and each supplied to its own electronics.
  • Each electronics sits in its own holder; on the one hand, the receptacles are arranged on the outer wall of the housing rotated by 90 degrees to one another, and on the other hand they are offset to a certain extent in the longitudinal direction.
  • the housing opening is securely closed by the cover. It is possible to design the converter system to receive one or two linearly polarized waves. Such a converter system also requires two electronics units with a polarization switch and enables the separation of cross-polarized waves.
  • the housing and the cover are preferably made of cast parts, for. B. made of precision castings. This eliminates the hitherto customary production by milling. If necessary, these parts can be coated with a noble surface in a further embodiment of the invention, for. B. galvanized to meet the electrical or weather needs.
  • the integrated means for direct antenna coupling between the waveguide and the electronics consist, for example, in that the electronics are connected to a pin-shaped coupling-out antenna which penetrates a wall of the waveguide in the region of the receptacle in a molded bore and projects into the interior of the waveguide, and that the waveguide is provided at the output with an associated short-circuit element matched to the coupling antenna.
  • a short-circuit element can conduct, for example de rods can be provided in molded holes in the housing.
  • the holes for receiving the coupling antenna and the holes for receiving the conductive rods can be easily molded in when manufacturing the housing. This results in a simple connection technology for the electronics.
  • the converter is preferably designed in such a way that the waveguide has a square cross-section and that there are two receptacles for the electronics that are arranged at right angles to one another and offset in the longitudinal direction, each with an outcoupling antenna and a short-circuit element at the waveguide output assigned.
  • This design is a simple way to receive both polarization directions (left and right circularly polarized). Due to the staggered receptacles, both electronics units are arranged at a specific, unchangeable distance from each other. The electronics are easily accessible and can be easily replaced in the event of a fault.
  • the square cross section of the waveguide enables the opening for receiving the polarization converter to be easily made.
  • the housing and the cover have e.g. B. each have a molded, outwardly facing support rib with mutually adapted support surfaces.
  • the support ribs are shaped and arranged with their support surfaces in such a way that a polarization plate received and held between them protrudes into the interior of the waveguide at a certain angle, preferably 45 degrees.
  • a particularly simple possibility for fixing and aligning results from the fact that the support rib of the housing is provided with holding and guide pins and the support rib of the cover is provided with corresponding openings.
  • the required filters of the converter system can either be made in one piece with the housing or can be designed as a special component that can be retrofitted into the waveguide.
  • Each satellite broadcast receiving system shown in Fig. 5 requires a so-called outdoor unit.
  • This consists essentially of a parabolic antenna 10 and a converter system 11 arranged in the focal point of the antenna and housed in an outer housing 12.
  • the task of this external unit is that the signals of a radio satellite, e.g. B. in the range 11.7 to 12.5 GHz to receive, low noise amplification and to an intermediate frequency, for. B. 0.95 to 1.75 GHz to implement. These signals then reach the distribution network via coaxial cables.
  • Such a converter system can be designed to receive one or two polarization directions. Thus, either clockwise polarized signals or counterclockwise polarized signals or signals of both polarization directions can be received and implemented simultaneously.
  • the outer housing 12 is constructed to be radio frequency and waterproof.
  • the converter system 11 has a one-piece housing 13 made of die-cast zinc with a molded flange 14 on the exciter side and with two box-shaped receptacles 15 and 16 formed on two housing outsides. 17 denotes an integrated opening, which is provided by a removable cover 18 can be closed.
  • Housing 13 and cover 18 have molded support ribs 20, 21 with corresponding support surfaces 22, 23.
  • the support rib 20 is provided with retaining and guide pins 24.
  • the support rib 20 with the holding and guide pins 24 serves to receive a polarization converter 25, which is designed as a thin plate and is provided with corresponding openings 26.
  • the housing 13 is designed in the interior as a waveguide 27 which has an opening 28 on the exciter side and an opening 29 on the opposite side.
  • the waveguide also has two molded-in filters 30 with openings 31.
  • 32, 33 designate two molded-in bores which start from the waveguide and each open into one of the box-shaped receptacles 15, 16. With 34, three adjacent holes are designated.
  • the box-shaped receptacles 15, 16 each serve to hold electronics 35, 36, which can be seen in FIG. 1 in the non-installed state and in FIGS. 2 and 3 in the installed state.
  • the components required for each electronics are attached to ceramic plates 35a, b, 36a, b manufactured using thick-film technology.
  • Each electronics contains all the electronic components and assemblies required for processing the microwave signals, e.g. B. a low-noise preamplifier, an image frequency filter and a mixer with local oscillator.
  • Each electronics 35, 36 is electrically conductively connected to a pin-shaped coupling antenna 37, 38. In the installed state, the coupling antennas 37, 38 penetrate the holes 32, 33 and protrude into the waveguide 27.
  • the polarization converter 25 is clamped by the support ribs 20, 21 and protrudes in the direction of the diagonal into the waveguide 27 with a square cross section (see FIG. 3).
  • the box-shaped receptacles which is not shown in FIG. 1, can each be closed with a cover 15 a, 16 a, which is also produced using die casting technology (FIG 3).
  • a short-circuit plate and with 40 a three-bar 40 a short-circuit grid is designated.
  • an exciter is provided as a special component and can be mechanically attached via the flange 14.
  • Fig. 4 shows a type in which an exciter 41 with the housing 13 is made in one piece.
  • the two receptacles 15 and 16 are arranged at right angles to one another and, on the other hand, are offset from one another by the dimension 42 in the longitudinal extension of the waveguide 27.
  • the electronics 35 serve to process the microwave signals of the one circularly polarized direction (e.g. counterclockwise), while the electronics 36 serve to process the microwave signals of the other circularly polarized direction (e.g. clockwise).
  • the polarization converter 25 converts the still circularly polarized signals into orthogonally-linearly polarized signals.
  • a mounting openings on the lid 18 are designated. 43, 44 designate additional bores, each of which extends outward from the bottom of a receptacle 15, 16.
  • the coupling antennas 37, 38 are also offset from one another by the dimension 42.
  • Each of the existing coupling antennas 37, 38 can only receive the linear wave assigned to it, but not the one orthogonal to it (polarization switch). If the two coupling antennas 37, 38 lie in a common plane or in two planes arranged close to one another and running at right angles to the waveguide longitudinal extension, the orthogonality of the cross-polarized linear waves to be coupled out is disturbed (coupling). There must therefore be a sufficient dimension 42 between the coupling antennas 37, 38 in order to prevent the two waves from being coupled together by the coupling antennas 37, 38. 1, the offset dimension 42 is equal to a fraction of the length of the housing 13, so that a compact, compact design can be made possible.
  • the required displacement 42 between the antennas 37, 38 is achieved by displacing the associated receptacles 15, 16, since the boards 35a, b, 36a, b have the same structure.
  • a mutual offset of the receptacles 15, 16 could, however, also be omitted if it is only ensured that the coupling antennas 37, 38 have the required distance 42.
  • the associated boards would then have to be constructed accordingly.
  • the waves separated in this way are each guided to electronics 35, 36 and processed further. So that both the left-handed and the right-handed circularly polarized waves can be received simultaneously, the waveguide 27 requires a short circuit for each direction at a certain distance from the respective antenna 37, 38.
  • the short-circuit plate 39 is used for the signals received by the electronics 35.
  • the short-circuit grating 40 consisting of rods is used for the signals to be processed by the electronics (36). This is grid-shaped so that the associated signals can be passed through for the downstream antenna 37.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Waveguide Aerials (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
EP87107718A 1986-06-07 1987-05-27 Dispositif de conversion Withdrawn EP0252269A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3619220 1986-06-07
DE19863619220 DE3619220A1 (de) 1986-06-07 1986-06-07 Konvertersystem

Publications (1)

Publication Number Publication Date
EP0252269A1 true EP0252269A1 (fr) 1988-01-13

Family

ID=6302526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87107718A Withdrawn EP0252269A1 (fr) 1986-06-07 1987-05-27 Dispositif de conversion

Country Status (2)

Country Link
EP (1) EP0252269A1 (fr)
DE (1) DE3619220A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664748A1 (fr) * 1990-07-16 1992-01-17 Tonna Electronique Ensemble cornet-tete hyperfrequence.
EP0523770A1 (fr) * 1991-07-15 1993-01-20 Matsushita Electric Works, Ltd. Bloc convertisseur à faible bruit utilisé dans une antenne plane recevant des ondes électromagnétiques à double polarisation
US5260713A (en) * 1988-11-14 1993-11-09 Motson & Company Limited Microwave signal receiving apparatus
EP0729198A1 (fr) * 1995-02-21 1996-08-28 Philips Patentverwaltung GmbH Convertisseur
FR2766625A1 (fr) * 1997-07-28 1999-01-29 Alsthom Cge Alcatel Antenne a polarisation circulaire un sens
EP1191624A2 (fr) * 2000-09-22 2002-03-27 InvaCom Ltd., Business & Technology Center Améloriations apportées à un dispositif de réception de données
DE102007025226A1 (de) * 2007-05-31 2008-12-04 Kathrein-Werke Kg Speisesystem insbesondere zum Empfang von über Satellit ausgestrahlten Fernseh- und/oder Rundfunkprogrammen
WO2020123382A1 (fr) 2018-12-11 2020-06-18 Waymo Llc Filtrage d'une polarisation indésirable de signaux transmis d'une puce à une unité de guide d'ondes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0174613U (fr) * 1987-07-06 1989-05-19

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB663889A (en) * 1949-05-09 1951-12-27 Marconi Wireless Telegraph Co Improvements in or relating to wave guides
US2862728A (en) * 1955-01-25 1958-12-02 Aircraft Armaments Inc Detachable coupling device with alignment means
US2979679A (en) * 1955-09-02 1961-04-11 Gen Electric Co Ltd Apparatus of the kind including a waveguide
EP0059927A1 (fr) * 1981-03-07 1982-09-15 ANT Nachrichtentechnik GmbH Dispositif de réception à micro-ondes
EP0110324A1 (fr) * 1982-11-30 1984-06-13 Kabushiki Kaisha Toshiba Récepteur à hyperfréquences comportant un filtre à guide d'ondes
EP0117676A2 (fr) * 1983-02-26 1984-09-05 LUCAS INDUSTRIES public limited company Filtre d'hyperfréquences
EP0122391A1 (fr) * 1983-02-17 1984-10-24 Siemens Aktiengesellschaft Antenne à large bande à micro-ondes
EP0131633A1 (fr) * 1983-01-20 1985-01-23 Matsushita Electric Industrial Co., Ltd. Convertisseur de frequence
EP0178259A2 (fr) * 1984-10-10 1986-04-16 HUBER & SUHNER AG KABEL-, KAUTSCHUK-, KUNSTSTOFF-WERKE Guide d'ondes avec une source primaire
EP0228947A1 (fr) * 1985-12-10 1987-07-15 Société S E R E L Dispositif de réception, à guide d'onde et circuits superhétérodynes, de deux signaux hyperfréquences à polarisation de sens inverses
EP0231422A2 (fr) * 1986-01-31 1987-08-12 Nec Corporation Dispositif d'émission/réception micro-ondes

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB663889A (en) * 1949-05-09 1951-12-27 Marconi Wireless Telegraph Co Improvements in or relating to wave guides
US2862728A (en) * 1955-01-25 1958-12-02 Aircraft Armaments Inc Detachable coupling device with alignment means
US2979679A (en) * 1955-09-02 1961-04-11 Gen Electric Co Ltd Apparatus of the kind including a waveguide
EP0059927A1 (fr) * 1981-03-07 1982-09-15 ANT Nachrichtentechnik GmbH Dispositif de réception à micro-ondes
EP0110324A1 (fr) * 1982-11-30 1984-06-13 Kabushiki Kaisha Toshiba Récepteur à hyperfréquences comportant un filtre à guide d'ondes
EP0131633A1 (fr) * 1983-01-20 1985-01-23 Matsushita Electric Industrial Co., Ltd. Convertisseur de frequence
EP0122391A1 (fr) * 1983-02-17 1984-10-24 Siemens Aktiengesellschaft Antenne à large bande à micro-ondes
EP0117676A2 (fr) * 1983-02-26 1984-09-05 LUCAS INDUSTRIES public limited company Filtre d'hyperfréquences
EP0178259A2 (fr) * 1984-10-10 1986-04-16 HUBER & SUHNER AG KABEL-, KAUTSCHUK-, KUNSTSTOFF-WERKE Guide d'ondes avec une source primaire
EP0228947A1 (fr) * 1985-12-10 1987-07-15 Société S E R E L Dispositif de réception, à guide d'onde et circuits superhétérodynes, de deux signaux hyperfréquences à polarisation de sens inverses
EP0231422A2 (fr) * 1986-01-31 1987-08-12 Nec Corporation Dispositif d'émission/réception micro-ondes

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5260713A (en) * 1988-11-14 1993-11-09 Motson & Company Limited Microwave signal receiving apparatus
FR2664748A1 (fr) * 1990-07-16 1992-01-17 Tonna Electronique Ensemble cornet-tete hyperfrequence.
EP0523770A1 (fr) * 1991-07-15 1993-01-20 Matsushita Electric Works, Ltd. Bloc convertisseur à faible bruit utilisé dans une antenne plane recevant des ondes électromagnétiques à double polarisation
EP0729198A1 (fr) * 1995-02-21 1996-08-28 Philips Patentverwaltung GmbH Convertisseur
FR2766625A1 (fr) * 1997-07-28 1999-01-29 Alsthom Cge Alcatel Antenne a polarisation circulaire un sens
EP0895298A1 (fr) * 1997-07-28 1999-02-03 Alcatel Antenne à polarisation circulaire un sens
US6100854A (en) * 1997-07-28 2000-08-08 Alcatel Antenna with one-way circular polarization
EP1191624A2 (fr) * 2000-09-22 2002-03-27 InvaCom Ltd., Business & Technology Center Améloriations apportées à un dispositif de réception de données
EP1191624A3 (fr) * 2000-09-22 2003-08-13 InvaCom Ltd., Business & Technology Center Améloriations apportées à un dispositif de réception de données
DE102007025226A1 (de) * 2007-05-31 2008-12-04 Kathrein-Werke Kg Speisesystem insbesondere zum Empfang von über Satellit ausgestrahlten Fernseh- und/oder Rundfunkprogrammen
WO2020123382A1 (fr) 2018-12-11 2020-06-18 Waymo Llc Filtrage d'une polarisation indésirable de signaux transmis d'une puce à une unité de guide d'ondes
EP3881394A4 (fr) * 2018-12-11 2022-11-16 Waymo LLC Filtrage d'une polarisation indésirable de signaux transmis d'une puce à une unité de guide d'ondes

Also Published As

Publication number Publication date
DE3619220A1 (de) 1988-02-18
DE3619220C2 (fr) 1988-07-07

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Inventor name: KOCH, MARTIN, DIPL.-ING.

Inventor name: GOEHLER, JUERGEN, ING. GRAD.

Inventor name: HEHLGANS, JOERG, DIPL.-ING.

Inventor name: ANGER, BERND, DIPL.-ING.