WO2007092748A3 - Circular waveguide e-bend - Google Patents

Circular waveguide e-bend Download PDF

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Publication number
WO2007092748A3
WO2007092748A3 PCT/US2007/061511 US2007061511W WO2007092748A3 WO 2007092748 A3 WO2007092748 A3 WO 2007092748A3 US 2007061511 W US2007061511 W US 2007061511W WO 2007092748 A3 WO2007092748 A3 WO 2007092748A3
Authority
WO
WIPO (PCT)
Prior art keywords
circular
bend
compact
mode
quarter wave
Prior art date
Application number
PCT/US2007/061511
Other languages
French (fr)
Other versions
WO2007092748A2 (en
Inventor
John C Hoover
Original Assignee
Ems Technologies Inc
John C Hoover
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 Ems Technologies Inc, John C Hoover filed Critical Ems Technologies Inc
Priority to US11/737,830 priority Critical patent/US7420434B2/en
Publication of WO2007092748A2 publication Critical patent/WO2007092748A2/en
Publication of WO2007092748A3 publication Critical patent/WO2007092748A3/en

Links

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
    • 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
    • H01P5/082—Transitions between hollow waveguides of different shape, e.g. between a rectangular and a circular waveguide

Abstract

A compact circular waveguide system can connect circular waveguides through a bend while avoiding excessive interaction between the orthogonal modes of the circular waveguides. A compact bend system with circular waveguide input and output can be achieved by providing short quarter wave transformers. The quarter wave transformers can be positioned at the transitions between the circular waveguides and a single-mode quasi-rectangular waveguide segment. Within the single-mode quasi-rectangular waveguide segment, a bend can be formed without concern for mixing of the orthogonal modes of the circular guided wave. The undesired mode of propagation can be substantially reduced or eliminated within the quarter wave transformers with a resistive mode suppressor. The compact system can be machined out of a single block of material from the outside flange faces.
PCT/US2007/061511 2006-02-06 2007-02-02 Circular waveguide e-bend WO2007092748A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/737,830 US7420434B2 (en) 2007-02-02 2007-04-20 Circular to rectangular waveguide converter including a bend section and mode suppressor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US76565506P 2006-02-06 2006-02-06
US60/765,655 2006-02-06

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/737,830 Continuation US7420434B2 (en) 2007-02-02 2007-04-20 Circular to rectangular waveguide converter including a bend section and mode suppressor

Publications (2)

Publication Number Publication Date
WO2007092748A2 WO2007092748A2 (en) 2007-08-16
WO2007092748A3 true WO2007092748A3 (en) 2008-04-03

Family

ID=38345881

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/061511 WO2007092748A2 (en) 2006-02-06 2007-02-02 Circular waveguide e-bend

Country Status (1)

Country Link
WO (1) WO2007092748A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110137650B (en) * 2019-05-05 2021-08-10 苏州大学 Waveguide device and signal transmission device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110299583B (en) * 2018-03-22 2020-10-09 华为技术有限公司 Mode conversion device and signal transmission system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4564826A (en) * 1984-04-06 1986-01-14 Andrew Corporation Multiple mitered circular waveguide bend
US4679008A (en) * 1984-12-27 1987-07-07 The Johns Hopkins University Sharp mode-transducer bend for overmoded waveguide
US4885839A (en) * 1985-05-30 1989-12-12 General Signal Corporation Process of fabricating a waveguide
US5151673A (en) * 1991-07-29 1992-09-29 The Johns Hopkins University Compact bend for TE01 mode circular overmoded waveguide
US5202650A (en) * 1991-06-26 1993-04-13 The Johns Hopkins University Matched spurious mode attenuator and transition for circular overmoded waveguide
US5374938A (en) * 1992-01-21 1994-12-20 Sharp Kabushiki Kaisha Waveguide to microstrip conversion means in a satellite broadcasting adaptor
US5719976A (en) * 1995-10-24 1998-02-17 Lucent Technologies, Inc. Optimized waveguide structure
US6023209A (en) * 1996-07-05 2000-02-08 Endgate Corporation Coplanar microwave circuit having suppression of undesired modes

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4564826A (en) * 1984-04-06 1986-01-14 Andrew Corporation Multiple mitered circular waveguide bend
US4679008A (en) * 1984-12-27 1987-07-07 The Johns Hopkins University Sharp mode-transducer bend for overmoded waveguide
US4885839A (en) * 1985-05-30 1989-12-12 General Signal Corporation Process of fabricating a waveguide
US5202650A (en) * 1991-06-26 1993-04-13 The Johns Hopkins University Matched spurious mode attenuator and transition for circular overmoded waveguide
US5151673A (en) * 1991-07-29 1992-09-29 The Johns Hopkins University Compact bend for TE01 mode circular overmoded waveguide
US5374938A (en) * 1992-01-21 1994-12-20 Sharp Kabushiki Kaisha Waveguide to microstrip conversion means in a satellite broadcasting adaptor
US5719976A (en) * 1995-10-24 1998-02-17 Lucent Technologies, Inc. Optimized waveguide structure
US6023209A (en) * 1996-07-05 2000-02-08 Endgate Corporation Coplanar microwave circuit having suppression of undesired modes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110137650B (en) * 2019-05-05 2021-08-10 苏州大学 Waveguide device and signal transmission device

Also Published As

Publication number Publication date
WO2007092748A2 (en) 2007-08-16

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