GB1304970A - - Google Patents

Info

Publication number
GB1304970A
GB1304970A GB3725571A GB3725571A GB1304970A GB 1304970 A GB1304970 A GB 1304970A GB 3725571 A GB3725571 A GB 3725571A GB 3725571 A GB3725571 A GB 3725571A GB 1304970 A GB1304970 A GB 1304970A
Authority
GB
United Kingdom
Prior art keywords
coupling
inductive
common
resonators
waveguide
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.)
Expired
Application number
GB3725571A
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 filed Critical
Publication of GB1304970A publication Critical patent/GB1304970A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/207—Hollow waveguide filters
    • H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

1304970 Waveguide multicavity filters LICENTIA PATENT-VERWALTUNGS GmbH 9 Aug 1971 [14 Aug 1970] 37255/71 Heading H1W A waveguide filter comprises an even number n of resonators coupled sequentially and arranged so that resonators 1 and n, 2 and (n - 1) ... n/2 and (n/2+1) have a common wall, there being extra coupling through the common walls acting in phase with the normal sequential coupling. As shown, the narrow side of the waveguide provides the common walls and the sequential coupling is inductive. The by-pass coupling is also inductive, that between resonators 2 and 5 involving inversion to establish the correct phase. This is provided by means of a S-shaped coupling loop. A filter having a common broad wall using mixed inductive and capacitative couplings is also shown.
GB3725571A 1970-08-14 1971-08-09 Expired GB1304970A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702040495 DE2040495A1 (en) 1970-08-14 1970-08-14 Filter arrangement consisting of a multi-circuit waveguide filter

Publications (1)

Publication Number Publication Date
GB1304970A true GB1304970A (en) 1973-01-31

Family

ID=5779792

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3725571A Expired GB1304970A (en) 1970-08-14 1971-08-09

Country Status (2)

Country Link
DE (1) DE2040495A1 (en)
GB (1) GB1304970A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178673A (en) * 1974-12-28 1976-07-08 Nippon Electric Co JUKYOKU GATATAIIKITSUKAROHAKI
GB2257308A (en) * 1991-05-20 1993-01-06 American Telephone & Telegraph Folded interdigital notch filter.
EP1157439A1 (en) * 1998-12-04 2001-11-28 Alcatel Waveguide directional filter
EP1564835A1 (en) * 2004-02-16 2005-08-17 Siemens Mobile Communications S.p.A. Inline waveguide filter with up to two out-of-band transmission zeros
EP3123557A4 (en) * 2014-03-26 2017-03-08 Alcatel- Lucent Shanghai Bell Co., Ltd Adjustable phase-inverting coupling loop

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0754354A1 (en) * 1994-04-01 1997-01-22 Com Dev Ltd. Dielectric resonator filter
FR2727244B1 (en) * 1994-11-18 1996-12-13 Thomson Tubes Electroniques EASY COUPLING RESONANT CAVITY
US5841330A (en) 1995-03-23 1998-11-24 Bartley Machines & Manufacturing Series coupled filters where the first filter is a dielectric resonator filter with cross-coupling

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178673A (en) * 1974-12-28 1976-07-08 Nippon Electric Co JUKYOKU GATATAIIKITSUKAROHAKI
JPS5821845B2 (en) * 1974-12-28 1983-05-04 日本電気株式会社 Yuukiyokugatataiikitsuukalohaki
GB2257308A (en) * 1991-05-20 1993-01-06 American Telephone & Telegraph Folded interdigital notch filter.
GB2257308B (en) * 1991-05-20 1995-04-26 American Telephone & Telegraph Folded interdigital notch filter
EP1157439A1 (en) * 1998-12-04 2001-11-28 Alcatel Waveguide directional filter
EP1157439A4 (en) * 1998-12-04 2003-02-12 Cit Alcatel Waveguide directional filter
EP1564835A1 (en) * 2004-02-16 2005-08-17 Siemens Mobile Communications S.p.A. Inline waveguide filter with up to two out-of-band transmission zeros
EP3123557A4 (en) * 2014-03-26 2017-03-08 Alcatel- Lucent Shanghai Bell Co., Ltd Adjustable phase-inverting coupling loop

Also Published As

Publication number Publication date
DE2040495A1 (en) 1972-02-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee