AU5484886A - Microwave bandpass filter with tunable dielectric resonators - Google Patents

Microwave bandpass filter with tunable dielectric resonators

Info

Publication number
AU5484886A
AU5484886A AU54848/86A AU5484886A AU5484886A AU 5484886 A AU5484886 A AU 5484886A AU 54848/86 A AU54848/86 A AU 54848/86A AU 5484886 A AU5484886 A AU 5484886A AU 5484886 A AU5484886 A AU 5484886A
Authority
AU
Australia
Prior art keywords
resonators
board
waveguide
bandpass filter
beneath
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
AU54848/86A
Other versions
AU575469B2 (en
Inventor
Paul Alan Kennard
Barry Albert Syrett
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of AU5484886A publication Critical patent/AU5484886A/en
Application granted granted Critical
Publication of AU575469B2 publication Critical patent/AU575469B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • H01P1/219—Evanescent mode filters
    • 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
    • H01P1/2084—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure with dielectric resonators

Landscapes

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

Abstract

A dielectric resonator microwave bandpass filter includes a printed circuit board (40) supported within a cut-off waveguide (10, 12), with dielectric resonators (44) and coupling loops on an upper surface of the board and a well (42) beneath the board so that the resonators are well spaced from ground planes. Tuning screws (66) beneath the resonators, and coupling adjustment screws above the board adjacent to the coupling loops and between adjacent resonators, provide for adjustments to provide desired filter characteristics within a wide range. Isolators (30) within the waveguide have ports coupled to the resonators via micro-strip transmission lines comprising conductive tracks on the board and ports coupled to coaxial connectors (28) in end walls of the waveguide. The waveguide is formed from a cast body (10) and a flat lid (12).
AU54848/86A 1985-04-03 1986-03-14 Microwave bandpass filter with tunable dielectric resonators Ceased AU575469B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA478332 1985-04-03
CA000478332A CA1229389A (en) 1985-04-03 1985-04-03 Microwave bandpass filters including dielectric resonators

Publications (2)

Publication Number Publication Date
AU5484886A true AU5484886A (en) 1986-10-09
AU575469B2 AU575469B2 (en) 1988-07-28

Family

ID=4130192

Family Applications (1)

Application Number Title Priority Date Filing Date
AU54848/86A Ceased AU575469B2 (en) 1985-04-03 1986-03-14 Microwave bandpass filter with tunable dielectric resonators

Country Status (6)

Country Link
EP (1) EP0197653B1 (en)
JP (2) JPS61230501A (en)
AT (1) ATE69671T1 (en)
AU (1) AU575469B2 (en)
CA (1) CA1229389A (en)
DE (1) DE3682523D1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4692723A (en) * 1985-07-08 1987-09-08 Ford Aerospace & Communications Corporation Narrow bandpass dielectric resonator filter with mode suppression pins
JPS6221301A (en) * 1985-07-22 1987-01-29 Nec Corp Dielectric resonator filter
JPH03121703U (en) * 1990-03-27 1991-12-12
JPH03128304U (en) * 1990-04-02 1991-12-24
JPH04347909A (en) * 1991-05-24 1992-12-03 Nec Corp Dielectric resonator filter
GB2263363B (en) * 1992-01-07 1996-05-08 Marconi Gec Ltd Electrical filter
JP2800890B2 (en) * 1996-09-27 1998-09-21 日本電気株式会社 Microwave circuit
SE518119C2 (en) * 1996-12-20 2002-08-27 Ericsson Telefon Ab L M Resonance filter with adjustable filter mechanism
JP3480381B2 (en) * 1999-08-24 2003-12-15 株式会社村田製作所 Dielectric resonator device, dielectric filter, composite dielectric filter device, dielectric duplexer, and communication device
DE10348909A1 (en) * 2003-10-21 2005-06-02 Siemens Ag Filter element for filtering electromagnetic waves, especially bandpass filter or band blocking filter, has resonator held at distance from contacting structure in recess in circuit board by suitable attachment arrangement
JP2007509553A (en) 2003-10-21 2007-04-12 シーメンス　アクチエンゲゼルシヤフト Coupling structure for cylindrical resonators.
US7271679B2 (en) * 2005-06-30 2007-09-18 Intermec Ip Corp. Apparatus and method to facilitate wireless communications of automatic data collection devices in potentially hazardous environments
EP2229707A4 (en) * 2007-12-13 2011-01-19 Triasx Pty Ltd A microwave filter
CN103050760A (en) * 2012-12-10 2013-04-17 中兴通讯股份有限公司 Dielectric resonator and assembly method thereof and dielectric filter
WO2023138088A1 (en) * 2022-01-21 2023-07-27 Telefonaktiebolaget Lm Ericsson (Publ) Isolation-filtering unit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5038500B1 (en) * 1970-11-26 1975-12-10
JPS5176948A (en) * 1974-12-27 1976-07-03 Kokusai Denshin Denwa Co Ltd JUDENTAI KYOSHINKIOMOCHIITATAIIKITSUKAROHAKI
JPS51139745A (en) * 1975-05-28 1976-12-02 Oki Electric Ind Co Ltd Filter
JPS5945241B2 (en) * 1976-12-09 1984-11-05 株式会社東芝 Microwave circuit device using dielectric resonator
JPS5585101A (en) * 1978-12-22 1980-06-26 Nec Corp Dielectric substance drop-in filter
US4477785A (en) * 1981-12-02 1984-10-16 Communications Satellite Corporation Generalized dielectric resonator filter
JPS58215101A (en) * 1982-06-08 1983-12-14 Tdk Corp Dielectric filter
JPS6179301A (en) * 1984-09-27 1986-04-22 Nec Corp Band-pass filter of dielectric resonator
US4686496A (en) * 1985-04-08 1987-08-11 Northern Telecom Limited Microwave bandpass filters including dielectric resonators mounted on a suspended substrate board

Also Published As

Publication number Publication date
ATE69671T1 (en) 1991-12-15
CA1229389A (en) 1987-11-17
EP0197653B1 (en) 1991-11-21
EP0197653A3 (en) 1988-06-22
DE3682523D1 (en) 1992-01-02
AU575469B2 (en) 1988-07-28
JPS61230501A (en) 1986-10-14
EP0197653A2 (en) 1986-10-15
JPH0733001U (en) 1995-06-16

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