EP0351514A2 - Guide d'ondes à torsade - Google Patents

Guide d'ondes à torsade Download PDF

Info

Publication number
EP0351514A2
EP0351514A2 EP89108556A EP89108556A EP0351514A2 EP 0351514 A2 EP0351514 A2 EP 0351514A2 EP 89108556 A EP89108556 A EP 89108556A EP 89108556 A EP89108556 A EP 89108556A EP 0351514 A2 EP0351514 A2 EP 0351514A2
Authority
EP
European Patent Office
Prior art keywords
waveguide
coupling
polarization
window
coupling window
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
EP89108556A
Other languages
German (de)
English (en)
Other versions
EP0351514A3 (en
EP0351514B1 (fr
Inventor
Anton Ilsanker
Norbert Dr. Ephan
Albert Haslböck
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.)
Kathrein SE
Original Assignee
Kathrein Werke KG
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 Kathrein Werke KG filed Critical Kathrein Werke KG
Publication of EP0351514A2 publication Critical patent/EP0351514A2/fr
Publication of EP0351514A3 publication Critical patent/EP0351514A3/de
Application granted granted Critical
Publication of EP0351514B1 publication Critical patent/EP0351514B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01P1/02—Bends; Corners; Twists

Definitions

  • the invention relates to a waveguide twist according to the preamble of claim 1.
  • the straight waveguide is the basic element in waveguide technology.
  • the corner is chamfered to reduce the adjustment error.
  • manifolds are used with a continuous curvature and a constant cross-section.
  • the curvature usually 90 °, can be carried out in the direction of the electrical field lines (E-bend), i.e. in the case of the rectangular hollow line over the broad side, or in the direction of the magnetic field lines (H-bend), i.e. in the case of rectangular hollow line in the direction of the narrow side.
  • the waveguide provided with a rectangular cross section can also be twisted helically as a whole about its longitudinal axis in order to change the polarization plane by 90 °, as is described, for example, in DE-PS 976 910.
  • polarizing switches are known for example from DE 33 45 689 Al, DE 30 10 360 C2 and GB-PS 1 591 719.
  • These broadband polarization switches are used to separate orthogonally linearly polarized electromagnetic waves.
  • a waveguide section on the input side has a rectangular or square cross-section with two coupling windows lying laterally opposite one another, from which rectangular waveguide arms branch off and open into a common broadband branch with the inclusion of elbows.
  • polarization switches are used that are completely implemented in waveguide technology, they are always based on the same principle. They consist of a round or square waveguide to which two or more waveguides are connected. Two main wave types with mutually perpendicular polarization planes can be propagated in the square or round waveguide and are coupled separately from one another into one or more rectangular waveguides assigned only to one polarization.
  • This functional principle can be implemented in a simple version with a polarization switch in such a way that square waveguides are provided for the transmission of two waves with polarization planes oriented perpendicular to one another.
  • a transverse short circuit is arranged in it and, on the opposite side of the waveguide section with a square cross section, a longitudinal coupling window, that is to say in the propagation direction, in which the electromagnetic wave is coupled out with the polarization plane lying in the plane of the coupling window.
  • this electromagnetic wave can only be deflected by 90 ° in such a way that the direction of propagation of the two waves, which are now each separated on a waveguide branch, takes place parallel to one another.
  • a corresponding waveguide polarization switch therefore comprises on one connection side the two polarization gates one above the other for the two waveguide branches, in which the two separate electromagnetic waves are transmitted. Even if, by arranging an H-bend after the coupling window, the direction of propagation of the two coupled waves is brought into line and the connections of the two switch outputs can lie in one plane, it remains to be determined that the orientation of the two connecting waveguides is perpendicular to each other. Because of the way of coupling, the two polarizations spread separately in different waveguides in the same direction, but their orientation in space is still perpendicular to each other.
  • microwave converters are to be connected downstream, as is required in satellite technology, then these must also be aligned with the polarization lying perpendicular to one another, which is not always desirable from a constructional point of view is when the microwave converters are rectangular in cross-section and thus take up more space.
  • a so-called "twist” d h it would also be conceivable for a so-called "twist” d h. So a so-called "waveguide twist" is ordered. However, this would lead to an axial extension of the required installation space, since then, for example, a microwave converter could only be installed offset by the installation length of the so-called "twist".
  • the present invention indeed enables the possibility of a rotation of the polarization plane by, for example, 90 ° in an astonishing manner with the smallest installation space. This is made possible by the way in which one waveguide branch is coupled to the other, so that the electromagnetic waves in one polarization plane are coupled into the other waveguide branch by rotating their polarization plane by 90 °.
  • the principle according to the invention can be used not only with the shaft types H10 and H01, that is to say with square or rectangular waveguides in cross section, but also with waveguides with round waves in cross section with the shaft types H11 and H11.
  • the waveguides can also be provided with discontinuities.
  • Fig. 1 is a rectangular first waveguide 1 for example for the transmission of a linearly polarized electromagnetic table wave shown type H10.
  • a coupling window 5 is provided, the height of which generally corresponds to the broad side of the waveguide 1. In practice, however, the height of the coupling window 5 will generally be up to approximately 10% less than the broad side of the waveguide 1.
  • the narrow side of the coupling window 5 is only half the length of its length.
  • an example of the magnetic field line 7 is shown in FIG. 1 in front of the waveguide 1.
  • the direction of propagation is changed by 90 ° to the vertical without changing the polarization plane.
  • a second waveguide 13 is arranged above the first waveguide 1.
  • the second waveguide 13 is parallel to the waveguide 1, in such a way that the two coupling windows 5 lie one on top of the other.
  • the coupling window 5 in the second waveguide 13 z3 was also arranged in its longitudinal direction, but off-center to the longitudinal axis.
  • the longitudinal or broad sides of the waveguide 13 to the first waveguide 1 are reversed by 90 °, so that in the waveguide 13, for example, an electromagnetic wave of the type H 1 can be excited.
  • the electromagnetic field lines 7 shown in FIG. 1 are coupled onto the second waveguide 13 via the coupling window 5 in such a way that magnetic field lines 15 are excited there. This is only achieved by the eccentric arrangement of the coupling window 5 with respect to the second waveguide 13. Because in the coupling window the magnetic field lines are rectified, so that an electromagnetic wave is excited in the second waveguide 13 due to the specific geometry, the polarization plane of which is 90 ° to the incoming electromagnetic wave Wave in the first waveguide 1 is twisted.
  • This basic principle can also be implemented in the case of a waveguide polarization oak as illustrated schematically in FIG. 2.
  • Fig. 2 differs from Fig. 1 in that instead of the first waveguide 1, a waveguide with a square cross section for transmitting two main electromagnetic waves with mutually perpendicular polarization planes, i.e. for example, transmission of a H10 and H01 wave is used. Below the also in this embodiment running in the longitudinal direction centrally arranged coupling window 5, a short circuit 9 'is arranged instead of an H-angle or H-bend.
  • this short circuit 9 is the same, however, because the electromagnetic wave with the polarization plane extending in the vertical longitudinal direction to the plane of the coupling window 5, in the exemplary embodiment shown thus the H01 wave via the coupling window 5 in the upper waveguide section 13 while rotating the Polarization plane can be coupled through 90 ° as explained in FIG. 1.
  • the short circuit 91 which is arranged approximately centrally but opposite the coupling window in the first waveguide 1, only the electromagnetic wave with parallel alignment to the short circuit, that is to say in the exemplary embodiment shown, the H10 wave is transmitted into the subsequent waveguide branch 17.
  • the linearly polarized, mutually perpendicular electromagnetic waves transmitted in the first waveguide 1 have now been split onto the two waveguide branches 13 and 17 in such a way that the two polarization planes are parallel to one another.
  • the coupling window is on the same upper side of the waveguide branch 17 usually an upper short-circuit bridge 911 to achieve better decoupling.
  • the invention has been explained, inter alia, for a waveguide polarization switch using a square waveguide with two rectangular waveguide connections.
  • the principle of operation also applies in general to a round waveguide to which two or more rectangular waveguides are connected.
  • Two main wave types with mutually perpendicular polarization planes can be propagated in a square or round waveguide, which can be coupled separately from one another into one or more rectangular waveguides assigned only one polarization.
  • the shaft types H11 and H11 can be carried over.
  • the waveguides can be provided with discontinuities for the purpose of adaptation, which can also be formed in the side walls transverse to the coupling window.
  • the first waveguide 1 is also square.
  • the one linearly polarized waveguide wave type does not propagate in the extended axial direction to the waveguide 1, but is coupled out via a separate coupling-out window 5 ', which runs centrally in the longitudinal direction on the one in FIG. 4 shown left side wall of the waveguide 1 is introduced. This is followed by an angle 27 for reversing the direction.
  • the decoupling of the second linearly polarized and perpendicular to the first wave type wave type according to the invention takes place via the coupling window 5 in FIG. 4 on the opposite right side of the waveguide 1, which is attached there eccentrically in the waveguide 1, as can be seen particularly in FIG. 5 is.
  • the second type of waveguide wave is decoupled while rotating the plane of polarization and also reversed in the direction by a subsequent angle 25.
  • a short circuit 9' is attached.
  • a waveguide termination 31 is provided at the end of the direction of propagation to the waveguide 1.
  • the rectangular waveguide emanating from the waveguide 1 to the coupling or decoupling window 5 or 5 ' are aligned with one another with their narrow sides
  • those after the coupling window 5 continuous waveguide branches 13 and 17 are aligned with one another with their broad side.
  • the two polarization gates 19 and 21 belonging to the two waveguide branches 13 and 17 can lie in a common plane.

Landscapes

  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
  • Optical Integrated Circuits (AREA)
  • Waveguide Connection Structure (AREA)
  • Semiconductor Lasers (AREA)
EP89108556A 1988-07-16 1989-05-12 Guide d'ondes à torsade Expired - Lifetime EP0351514B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3824150 1988-07-16
DE3824150A DE3824150A1 (de) 1988-07-16 1988-07-16 Hohlleiter-twist

Publications (3)

Publication Number Publication Date
EP0351514A2 true EP0351514A2 (fr) 1990-01-24
EP0351514A3 EP0351514A3 (en) 1990-09-05
EP0351514B1 EP0351514B1 (fr) 1994-11-09

Family

ID=6358813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89108556A Expired - Lifetime EP0351514B1 (fr) 1988-07-16 1989-05-12 Guide d'ondes à torsade

Country Status (3)

Country Link
EP (1) EP0351514B1 (fr)
AT (1) ATE114077T1 (fr)
DE (2) DE3824150A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4009288A1 (de) * 1990-03-22 1991-09-26 Siemens Ag Rechteckhohlleiter mit e-h-doppelversatz
WO2005099026A1 (fr) * 2004-03-30 2005-10-20 Murata Manufacturing Co., Ltd. Coin de guide d'onde et dispositif radio
WO2010056609A2 (fr) * 2008-11-11 2010-05-20 Viasat, Inc. Transducteur orthomode intégré
JP2013207391A (ja) * 2012-03-27 2013-10-07 Mitsubishi Electric Corp 方形導波管の接続構造
CN105140610A (zh) * 2015-09-08 2015-12-09 安徽四创电子股份有限公司 一种用于脊波导缝隙天线阵的等效180°脊波导弯

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2904478B1 (fr) * 2006-07-28 2010-04-23 Cit Alcatel Dispositif de transduction orthomode a compacite optimisee dans le plan de maille, pour une antenne
DE102009007317A1 (de) * 2009-02-03 2010-08-12 Continental Automotive Gmbh Ventil
CN105071006B (zh) * 2015-08-31 2017-09-29 北京遥测技术研究所 一种新型正交模耦合器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731602A (en) * 1946-01-10 1956-01-17 Julian S Schwinger Directional coupler
GB795862A (en) * 1954-10-29 1958-06-04 Western Electric Co Improvements in or relating to transmission line coupling devices
US2883628A (en) * 1957-06-25 1959-04-21 Whilden G Heinard Reverse direction waveguide coupler
DE976910C (de) * 1939-01-24 1964-07-23 Siemens Ag Hohlleiteranordnung zur Drehung der Polarisationsrichtung elektromagnetischer Schwingungen
GB1018173A (en) * 1962-11-20 1966-01-26 Microwave Ass A rectangular waveguide section
FR2057237A5 (fr) * 1969-08-07 1971-05-21 Thomson Csf
DE2748956A1 (de) * 1977-11-02 1979-05-03 Licentia Gmbh Hohlleitertwist

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1591719A (en) * 1976-12-21 1981-06-24 Arconi Co Ltd Orthogonal mode transducers
DE3010360C2 (de) * 1980-03-18 1985-08-08 Siemens AG, 1000 Berlin und 8000 München Polarisationsweiche
DE3345689A1 (de) * 1983-12-16 1985-07-11 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Breitband-polarisationsweiche

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976910C (de) * 1939-01-24 1964-07-23 Siemens Ag Hohlleiteranordnung zur Drehung der Polarisationsrichtung elektromagnetischer Schwingungen
US2731602A (en) * 1946-01-10 1956-01-17 Julian S Schwinger Directional coupler
GB795862A (en) * 1954-10-29 1958-06-04 Western Electric Co Improvements in or relating to transmission line coupling devices
US2883628A (en) * 1957-06-25 1959-04-21 Whilden G Heinard Reverse direction waveguide coupler
GB1018173A (en) * 1962-11-20 1966-01-26 Microwave Ass A rectangular waveguide section
FR2057237A5 (fr) * 1969-08-07 1971-05-21 Thomson Csf
DE2748956A1 (de) * 1977-11-02 1979-05-03 Licentia Gmbh Hohlleitertwist

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NTZ NACHRICHTECHNISCHE ZEITSCHRIFT. vol. 38, no. 8, August 1985, BERLIN DE Seiten 554 - 560; E.SCHUEGRAF: "Neuartige Mikrowellenweichen für Zweibandantennen" *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4009288A1 (de) * 1990-03-22 1991-09-26 Siemens Ag Rechteckhohlleiter mit e-h-doppelversatz
WO2005099026A1 (fr) * 2004-03-30 2005-10-20 Murata Manufacturing Co., Ltd. Coin de guide d'onde et dispositif radio
US7750762B2 (en) 2004-03-30 2010-07-06 Murata Manufacturing Co., Ltd. Waveguide corner and radio device
WO2010056609A2 (fr) * 2008-11-11 2010-05-20 Viasat, Inc. Transducteur orthomode intégré
WO2010056609A3 (fr) * 2008-11-11 2010-11-18 Viasat, Inc. Transducteur orthomode intégré
JP2013207391A (ja) * 2012-03-27 2013-10-07 Mitsubishi Electric Corp 方形導波管の接続構造
CN105140610A (zh) * 2015-09-08 2015-12-09 安徽四创电子股份有限公司 一种用于脊波导缝隙天线阵的等效180°脊波导弯
CN105140610B (zh) * 2015-09-08 2018-03-02 安徽四创电子股份有限公司 一种用于脊波导缝隙天线阵的等效180°脊波导弯

Also Published As

Publication number Publication date
ATE114077T1 (de) 1994-11-15
EP0351514A3 (en) 1990-09-05
DE3824150A1 (de) 1989-07-06
DE58908620D1 (de) 1994-12-15
EP0351514B1 (fr) 1994-11-09
DE3824150C2 (fr) 1989-11-23

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