EP0418630A2 - Coude dans le plan E pour un guide d'ondes rectangulaire - Google Patents

Coude dans le plan E pour un guide d'ondes rectangulaire Download PDF

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Publication number
EP0418630A2
EP0418630A2 EP90116912A EP90116912A EP0418630A2 EP 0418630 A2 EP0418630 A2 EP 0418630A2 EP 90116912 A EP90116912 A EP 90116912A EP 90116912 A EP90116912 A EP 90116912A EP 0418630 A2 EP0418630 A2 EP 0418630A2
Authority
EP
European Patent Office
Prior art keywords
waveguide
angle
corner
rectangular waveguide
angle piece
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
EP90116912A
Other languages
German (de)
English (en)
Other versions
EP0418630B1 (fr
EP0418630A3 (en
Inventor
Eberhard Dr. Ing. Schuegraf
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0418630A2 publication Critical patent/EP0418630A2/fr
Publication of EP0418630A3 publication Critical patent/EP0418630A3/de
Application granted granted Critical
Publication of EP0418630B1 publication Critical patent/EP0418630B1/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
    • H01P1/02—Bends; Corners; Twists
    • H01P1/022—Bends; Corners; Twists in waveguides of polygonal cross-section
    • H01P1/025—Bends; Corners; Twists in waveguides of polygonal cross-section in the E-plane

Definitions

  • the invention relates to a broadband rectangular waveguide E-angle piece, which is bent over the broad waveguide sides of the rectangular waveguide and has a corner projection on the outer corner directed into the interior of the waveguide and extending over the entire outer broad side.
  • the simply bent waveguide can cause a strong adjustment error because the resulting sack on the outer corner represents a considerable cross impedance.
  • 90 o -E contra-angles are therefore compensated with a 45 ° bevel on their outer corner.
  • Such a rectangular waveguide E-angle piece, symmetrically bevelled on the outer corner is known, for example, from Meinke / Gundlach: "Taschenbuch der Hochfrequenztechnik", 1956, Springer-Verlag, pages 298-300.
  • beveled E angles cannot be milled in one piece with numerical control. For a millable form, they have to be divided costly, milled in several parts and then screwed together.
  • E-angle piece Another embodiment of an E-angle piece is known from European patent application 0 284 911.
  • This angle piece has a 90 ° corner protrusion on the outside corner over the entire broad side of the rectangular waveguide.
  • this known rectangular compensation stage in the outer corner of the E-contra-angle has reflections that are too high for many applications.
  • the object of the invention is to provide a rectangular waveguide E-elbow, which is very low reflection over an entire waveguide band and can be milled from one piece with numerical control (NC).
  • NC numerical control
  • this object is achieved in that the corner projection has the profile of an angle inserted in the outer corner, the angle of which corresponds to the angle of the E-angle and the two legs have the same lengths and strengths.
  • the leg length of the angle causing compensation determines the overall frequency response of the reflection over an entire waveguide band (reflection increasing or decreasing with frequency), while the leg thickness predominantly allows the reflection level in the entire waveguide band to be influenced.
  • Fig. 1 shows an oblique view of an embodiment of a broadband rectangular waveguide E-elbow according to the invention.
  • This angle piece is bent at right angles over the broad waveguide sides, which have a dimension a.
  • a corner projection 4 which extends into the interior of the waveguide and extends over the entire broad side.
  • the corner projection 4 has the profile of a 90 ° angle inserted into the outer corner 1, the two legs 2 and 3 of which have the same lengths l K and the same Have strengths h K.
  • the E-contra-angle shown in Fig. 1 can be milled in one piece (with a milling cutter).
  • the leg length l K determines the total frequency response of the reflection over an entire waveguide band, while the leg thickness h K primarily affects the reflection level in the entire waveguide band.
  • a further reduction in the reflection is possible in sub-bands with slightly modified compensation sizes of the leg dimensions l K and h K.
  • the dimensions b and a are the narrow side and broad side dimensions of the exactly rectangular original waveguide, as is given, for example, as a connecting waveguide for the E-angle piece according to the invention.
  • This relatively large corner radius r noticeably increases the cut-off frequency f KH10 and thus also the wave resistance of the rectangular waveguide.
  • the E-contra-angle handpiece according to the invention takes place as an integrated component of polarization switches, in which a certain relative position of the rectangular waveguide access is required, e.g. for the polarizing switch according to European patent application 0 284 911, a wide field of application.
  • a millable, broad-band, low-reflection E-contra-angle is required for the specified double-shell polarization switch.
  • the compensation method according to the invention by inserting an angle profile in the outer corner of the e-angle piece is not limited to bending angle of 90 o, 90 o but also to not draw forming kink angles applicable.

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)
  • Magnetic Heads (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Optical Integrated Circuits (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
EP90116912A 1989-09-22 1990-09-03 Coude dans le plan E pour un guide d'ondes rectangulaire Expired - Lifetime EP0418630B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3971706 1989-09-22
DE3971706 1989-09-22

Publications (3)

Publication Number Publication Date
EP0418630A2 true EP0418630A2 (fr) 1991-03-27
EP0418630A3 EP0418630A3 (en) 1992-03-04
EP0418630B1 EP0418630B1 (fr) 1995-01-11

Family

ID=6397164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90116912A Expired - Lifetime EP0418630B1 (fr) 1989-09-22 1990-09-03 Coude dans le plan E pour un guide d'ondes rectangulaire

Country Status (3)

Country Link
EP (1) EP0418630B1 (fr)
AT (1) ATE117130T1 (fr)
DE (1) DE59008236D1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0428118A2 (fr) * 1989-11-14 1991-05-22 CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A. Jonction à angle droit pour guides d'ondes rectangulaires
DE4326824A1 (de) * 1993-08-10 1995-02-16 Siemens Ag Hohlleiterschaltung mit zwei Polarisationsweichen
DE4425048A1 (de) * 1994-07-15 1996-01-18 Siemens Ag Richtfunkantennen-Speisesystem
EP0959516A1 (fr) * 1998-05-20 1999-11-24 TRT Lucent Technologies (SA) Procédé de fabrication de coudes pour guides d' ondes hyperfréquence, et coudes obtenus selon le procédé
EP0959515A1 (fr) * 1998-05-20 1999-11-24 TRT Lucent Technologies (SA) Procédé de fabrication de coudes pour guides d'ondes hyperfréquence, et coudes obtenus selon le procédé
RU2668622C1 (ru) * 2017-10-18 2018-10-02 Акционерное общество Центральное конструкторское бюро аппаратостроения Уголковый изгиб волноводного тракта
CN114583426A (zh) * 2022-03-15 2022-06-03 电子科技大学 一种h面剖分的太赫兹弯折波导结构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE637186A (fr) *
US2904759A (en) * 1956-04-26 1959-09-15 Bell Telephone Labor Inc Mode conversion in wave guides
EP0284911A1 (fr) * 1987-03-24 1988-10-05 Siemens Aktiengesellschaft Filtre de polarisation à large bande
EP0319629A1 (fr) * 1986-10-10 1989-06-14 Thomson-Csf Procédé de réalisation d'une transition hyperfréquence entre deux structures guidées orthogonales, et circuit hyperfréquence comportant une telle transition
EP0428118A2 (fr) * 1989-11-14 1991-05-22 CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A. Jonction à angle droit pour guides d'ondes rectangulaires

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE637186A (fr) *
US2904759A (en) * 1956-04-26 1959-09-15 Bell Telephone Labor Inc Mode conversion in wave guides
EP0319629A1 (fr) * 1986-10-10 1989-06-14 Thomson-Csf Procédé de réalisation d'une transition hyperfréquence entre deux structures guidées orthogonales, et circuit hyperfréquence comportant une telle transition
EP0284911A1 (fr) * 1987-03-24 1988-10-05 Siemens Aktiengesellschaft Filtre de polarisation à large bande
EP0428118A2 (fr) * 1989-11-14 1991-05-22 CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A. Jonction à angle droit pour guides d'ondes rectangulaires

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES. Bd. 26, Nr. 5, Mai 1978, NEW YORK US Seiten 326 - 332; K.R.GOUDEY ET AL.: 'High power X-band monopulse tracking feed for the Lincoln Laboratory long-range imaging radar' *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0428118A2 (fr) * 1989-11-14 1991-05-22 CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A. Jonction à angle droit pour guides d'ondes rectangulaires
EP0428118A3 (en) * 1989-11-14 1992-03-11 Cselt Centro Studi E Laboratori Telecomunicazioni S.P.A. Right-angle junction for rectangular waveguides
DE4326824A1 (de) * 1993-08-10 1995-02-16 Siemens Ag Hohlleiterschaltung mit zwei Polarisationsweichen
DE4425048A1 (de) * 1994-07-15 1996-01-18 Siemens Ag Richtfunkantennen-Speisesystem
EP0959516A1 (fr) * 1998-05-20 1999-11-24 TRT Lucent Technologies (SA) Procédé de fabrication de coudes pour guides d' ondes hyperfréquence, et coudes obtenus selon le procédé
EP0959515A1 (fr) * 1998-05-20 1999-11-24 TRT Lucent Technologies (SA) Procédé de fabrication de coudes pour guides d'ondes hyperfréquence, et coudes obtenus selon le procédé
RU2668622C1 (ru) * 2017-10-18 2018-10-02 Акционерное общество Центральное конструкторское бюро аппаратостроения Уголковый изгиб волноводного тракта
CN114583426A (zh) * 2022-03-15 2022-06-03 电子科技大学 一种h面剖分的太赫兹弯折波导结构

Also Published As

Publication number Publication date
DE59008236D1 (de) 1995-02-23
EP0418630B1 (fr) 1995-01-11
ATE117130T1 (de) 1995-01-15
EP0418630A3 (en) 1992-03-04

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