EP0439799A1 - Dispositif pour tourner la polarisation d'une onde polarisée dans un guide d'ondes - Google Patents

Dispositif pour tourner la polarisation d'une onde polarisée dans un guide d'ondes Download PDF

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Publication number
EP0439799A1
EP0439799A1 EP90125025A EP90125025A EP0439799A1 EP 0439799 A1 EP0439799 A1 EP 0439799A1 EP 90125025 A EP90125025 A EP 90125025A EP 90125025 A EP90125025 A EP 90125025A EP 0439799 A1 EP0439799 A1 EP 0439799A1
Authority
EP
European Patent Office
Prior art keywords
waveguide
rotor
section
stator
cross
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Withdrawn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
EP90125025A
Other languages
German (de)
English (en)
Inventor
Klaus Dipl.-Ing. Rademacher
Gerhard Dipl.-Ing. Hirsch (Fh)
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.)
Bosch Telecom GmbH
Original Assignee
ANT Nachrichtentechnik GmbH
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 ANT Nachrichtentechnik GmbH filed Critical ANT Nachrichtentechnik GmbH
Publication of EP0439799A1 publication Critical patent/EP0439799A1/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Withdrawn legal-status Critical Current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
    • H01P1/00—Auxiliary devices
    • H01P1/165—Auxiliary devices for rotating the plane of polarisation

Definitions

  • the present invention relates to a device for rotating the polarization of a linearly polarized waveguide shaft.
  • the invention is based on the object of specifying a device of the type mentioned at the outset which allows the polarization of a linearly polarized waveguide shaft to be rotated with as little effort as possible.
  • the rotor used according to the invention for the polarization rotation can be rotated in the desired direction of polarization without complex assembly work, where it then securely engages.
  • a polarization rotating device between a field waveguide 1 there is, for example, a parabolic antenna 2 and a waveguide 3 that connects the antenna to transmitting and / or receiving devices, a polarization rotating device.
  • This device consists of a stator 4 rigidly flanged to the two adjacent waveguides 1 and 3 and a rotor 5 mounted therein rotatably about the common longitudinal axis of the two waveguides 1 and 2.
  • a waveguide 6 extends through the rotor 5 in the direction of the axis of rotation connects the excitation waveguide 1 to the waveguide 3.
  • the waveguide 3 has a rectangular cross section in which waves of a single polarization direction can propagate.
  • the feed waveguide 1 has a square or circular cross section, so that the waves of two different linear polarizations (horizontal and vertical polarization) can propagate in it.
  • the waveguide 6 in the rotor 5 is now designed in such a way that a linearly polarized wave entering it from the waveguide is rotated by rotating the rotor 5 in a different polarization direction and then coupled into the feed waveguide 1.
  • the At its end facing the rectangular waveguide 3, the waveguide 6 in the rotor 5 has a section 61 which is twisted with respect to the continuing rectangular region of the waveguide 6.
  • the twist of the waveguide section 61 with respect to the rectangular waveguide 6 is preferably 45 ° if the device is to achieve a polarization rotation of 90 °.
  • this waveguide section 61 is provided with inductive and / or capacitive means in order to to compensate such reflected wave components as much as possible.
  • FIG. 2 illustrates that for this purpose, webs 7 are arranged on the broad sides of the waveguide section 61, so that a double-T-shaped cross section is formed, and its broad side a 'is reduced compared to the broad side a of the rectangular waveguide 6.
  • the waveguide 6 in the rotor 5 has a section 62 which forms a transition from the rectangular cross section of the waveguide 6 to the square or circular waveguide cross section.
  • a lever 8 is fastened to it, which is actuated by a lever in the stator 4 recessed slot 9 is guided to the outside.
  • the boundaries of the slot 9 represent stops 10 and 11 for the lever 8.
  • the length of the slot 9 is chosen so that the polarization is rotated in the desired direction in each stop position of the lever 8.
  • a detent mechanism is provided so that the rotor 5 does not inadvertently turn out of the respectively set rotational angle position.
  • At least one ball 14 is mounted in an end face 12 of the rotor 5, which faces a flange surface 13 in the interior of the stator 4 without contact.
  • two depressions 16 and 17 are embedded in the flange surface 13 of the stator 4, in which the ball 14 engages when the rotor is brought into the predetermined rotational angle positions. If, in deviation from this, an adjustment in several polarization directions is required, a corresponding number of depressions must be provided in the flange plane 13 of the stator 4.
  • the spring 15 pressing the ball 14 against the flange surface 13 in the stator 4 simultaneously causes the rotor 5 with its opposite end face to be pressed against the flange 18 of the exciter waveguide 1. As a result, the rotor 5 is additionally fixed in the respectively set rotational angle position.
  • the sinks 16 and 17 in the flange surface 13 are arranged such that when the rotor 5 has been rotated into a stop position of its lever 9, the ball 16 has not yet fully penetrated the respective depression, but rather at the oblique edge of the conical depression 16, 17 is present.
  • the effort of the ball 16 to slide completely into the depression 16, 17 produces a torque which causes the rotor 5 to rotate against a stop 10, 11 of the lever 8. The rotor 5 is thus held in its defined position.
  • the end face 12 of the rotor 5 faces the flange surface 13 of the stator 4 without contact.
  • the gap between the two is designed in a known manner so that it develops a choke for the waveguide shafts.
  • the device described above can be used in any waveguide arrangement in which a change in polarization of the wave propagating therein is to be made possible.

Landscapes

  • Waveguide Connection Structure (AREA)
EP90125025A 1990-01-29 1990-12-20 Dispositif pour tourner la polarisation d'une onde polarisée dans un guide d'ondes Withdrawn EP0439799A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904002496 DE4002496C1 (en) 1990-01-29 1990-01-29 Polarisation rotator for linearly polarised guided wave - has waveguide extending through rotor in stator in direction of axis of rotation
DE4002496 1990-01-29

Publications (1)

Publication Number Publication Date
EP0439799A1 true EP0439799A1 (fr) 1991-08-07

Family

ID=6398963

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90125025A Withdrawn EP0439799A1 (fr) 1990-01-29 1990-12-20 Dispositif pour tourner la polarisation d'une onde polarisée dans un guide d'ondes

Country Status (2)

Country Link
EP (1) EP0439799A1 (fr)
DE (1) DE4002496C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1178560A1 (fr) * 2000-08-02 2002-02-06 Alcatel Dispositif pour connecter deux guides d'ondes électromagnétiques identiques
WO2007110110A1 (fr) * 2006-03-27 2007-10-04 Telefonaktiebolaget Lm Ericsson (Publ) Raccordement de guides d'ondes

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2676598B1 (fr) * 1991-05-14 1993-07-23 Thomson Csf Liaison hyperfrequence mobile a guide d'ondes.
GB2432461A (en) * 2005-11-17 2007-05-23 Marconi Comm Gmbh T-shape waveguide twist-transformer junction
WO2015007926A1 (fr) * 2013-07-19 2015-01-22 Rymsa Espacio, S.A. Dispositif de commutation pour transmission parallèle ou hybride

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024463A (en) * 1958-10-16 1962-03-06 Bendix Corp Feed assembly for circular or linear polarization
US3517341A (en) * 1968-09-16 1970-06-23 Teledyne Inc Microwave polarization switch
US3938157A (en) * 1969-08-14 1976-02-10 The United States Of America As Represented By The Secretary Of The Navy Rotatable radar antenna feed and receiver horn
US4260961A (en) * 1978-01-04 1981-04-07 Licentia Patent-Verwaltungs-G.M.B.H. Compensator for two angularly offset joined wave guides
FR2609842A1 (fr) * 1987-01-15 1988-07-22 Spinner Georg Guide d'ondes torsade

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181304B (en) * 1985-10-03 1989-09-27 Gen Electric Plc Antenna feed polariser
DE8628689U1 (de) * 1986-10-28 1987-07-02 Wirtschaftliche Satellitenempfangssysteme GmbH, 6720 Speyer Polarisationsdreher
DE3830266C1 (en) * 1988-09-06 1989-12-28 Spinner Gmbh Elektrotechnische Fabrik, 8000 Muenchen, De Waveguide twist

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024463A (en) * 1958-10-16 1962-03-06 Bendix Corp Feed assembly for circular or linear polarization
US3517341A (en) * 1968-09-16 1970-06-23 Teledyne Inc Microwave polarization switch
US3938157A (en) * 1969-08-14 1976-02-10 The United States Of America As Represented By The Secretary Of The Navy Rotatable radar antenna feed and receiver horn
US4260961A (en) * 1978-01-04 1981-04-07 Licentia Patent-Verwaltungs-G.M.B.H. Compensator for two angularly offset joined wave guides
FR2609842A1 (fr) * 1987-01-15 1988-07-22 Spinner Georg Guide d'ondes torsade

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1178560A1 (fr) * 2000-08-02 2002-02-06 Alcatel Dispositif pour connecter deux guides d'ondes électromagnétiques identiques
WO2007110110A1 (fr) * 2006-03-27 2007-10-04 Telefonaktiebolaget Lm Ericsson (Publ) Raccordement de guides d'ondes
US7978020B2 (en) 2006-03-27 2011-07-12 Telefonaktiebolaget Lm Ericsson (Publ) Waveguide junction having angular and linear offsets for providing polarization rotation

Also Published As

Publication number Publication date
DE4002496C1 (en) 1991-01-10

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