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FR2531815B1 - BANDPASS FILTER WITH DIELECTRIC RESONATORS, HAVING NEGATIVE COUPLING BETWEEN RESONATORS - Google Patents

BANDPASS FILTER WITH DIELECTRIC RESONATORS, HAVING NEGATIVE COUPLING BETWEEN RESONATORS

Info

Publication number
FR2531815B1
FR2531815B1 FR8213927A FR8213927A FR2531815B1 FR 2531815 B1 FR2531815 B1 FR 2531815B1 FR 8213927 A FR8213927 A FR 8213927A FR 8213927 A FR8213927 A FR 8213927A FR 2531815 B1 FR2531815 B1 FR 2531815B1
Authority
FR
France
Prior art keywords
resonators
waveguide
negative coupling
bandpass filter
filter
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
FR8213927A
Other languages
French (fr)
Other versions
FR2531815A1 (en
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.)
Thales SA
Original Assignee
Thomson CSF SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9276770&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FR2531815(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR8213927A priority Critical patent/FR2531815B1/en
Priority to DE8383401602T priority patent/DE3376717D1/en
Priority to AT83401602T priority patent/ATE34488T1/en
Priority to EP83401602A priority patent/EP0101369B1/en
Publication of FR2531815A1 publication Critical patent/FR2531815A1/en
Application granted granted Critical
Publication of FR2531815B1 publication Critical patent/FR2531815B1/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
    • H01P1/219—Evanescent mode filters

Landscapes

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

Abstract

1. A resonator filter comprising a rectangular waveguide (1-3) and n dielectric resonators (R1-R6) disposed inside the waveguide (with n being not less than 4), in which negative coupling is provided between two of the n resonators (R2, R5), the waveguide operating below its cutoff frequency, the filter being characterized in that the waveguide is folded back on itself with a wall (2) that is common between its two folded portions, the two negatively coupled resonators being situated on either side of the common wall, the dimensions of the cross-section of the waveguide being about 2 to 2.5 times the transverse dimensions of the resonators, and in that the filter includes a coupling rod (20) for providing the negative coupling, said rod passing through the common wall via a hole and being electrically separate from the common wall, at least apart from its ends.
FR8213927A 1982-08-10 1982-08-10 BANDPASS FILTER WITH DIELECTRIC RESONATORS, HAVING NEGATIVE COUPLING BETWEEN RESONATORS Expired FR2531815B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR8213927A FR2531815B1 (en) 1982-08-10 1982-08-10 BANDPASS FILTER WITH DIELECTRIC RESONATORS, HAVING NEGATIVE COUPLING BETWEEN RESONATORS
DE8383401602T DE3376717D1 (en) 1982-08-10 1983-08-02 Band-pass filter with dielectric resonators presenting negative coupling between resonators
AT83401602T ATE34488T1 (en) 1982-08-10 1983-08-02 STRIP PASS FILTER WITH DIELECTRIC RESONATORS, WITH NEGATIVE COUPLING BETWEEN RESONATORS.
EP83401602A EP0101369B1 (en) 1982-08-10 1983-08-02 Band-pass filter with dielectric resonators presenting negative coupling between resonators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8213927A FR2531815B1 (en) 1982-08-10 1982-08-10 BANDPASS FILTER WITH DIELECTRIC RESONATORS, HAVING NEGATIVE COUPLING BETWEEN RESONATORS

Publications (2)

Publication Number Publication Date
FR2531815A1 FR2531815A1 (en) 1984-02-17
FR2531815B1 true FR2531815B1 (en) 1985-08-02

Family

ID=9276770

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8213927A Expired FR2531815B1 (en) 1982-08-10 1982-08-10 BANDPASS FILTER WITH DIELECTRIC RESONATORS, HAVING NEGATIVE COUPLING BETWEEN RESONATORS

Country Status (4)

Country Link
EP (1) EP0101369B1 (en)
AT (1) ATE34488T1 (en)
DE (1) DE3376717D1 (en)
FR (1) FR2531815B1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3530676A1 (en) * 1985-08-28 1987-03-12 Licentia Gmbh Multi-circuit filter for frequency selection especially for the millimetric waveband, and a method for filter production
US5153541A (en) * 1991-05-20 1992-10-06 At&T Bell Laboratories Folded interdigital notch filter
US5410284A (en) * 1992-12-09 1995-04-25 Allen Telecom Group, Inc. Folded multiple bandpass filter with various couplings
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
GB9506866D0 (en) * 1995-04-03 1995-05-24 Cameron Richard J Dispersion compensation technique and apparatus for microwave filters
US5781085A (en) * 1996-11-27 1998-07-14 L-3 Communications Narda Microwave West Polarity reversal network
US5777534A (en) * 1996-11-27 1998-07-07 L-3 Communications Narda Microwave West Inductor ring for providing tuning and coupling in a microwave dielectric resonator filter
DE19916605C1 (en) * 1999-04-13 2001-01-18 Spinner Gmbh Elektrotech Multi-circuit band filter made of pot circles
US6836198B2 (en) 2001-12-21 2004-12-28 Radio Frequency Systems, Inc. Adjustable capacitive coupling structure
GB2555407B (en) * 2016-10-25 2021-12-15 Isotek Microwave Ltd A tuneable microwave filter and tuneable microwave multiplexer
CN111370818A (en) * 2020-03-06 2020-07-03 广东国华新材料科技股份有限公司 Capacitive coupling structure and dielectric filter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE474970A (en) * 1945-06-14
US2749523A (en) * 1951-12-01 1956-06-05 Itt Band pass filters
US4121181A (en) * 1976-06-14 1978-10-17 Murata Manufacturing Co., Ltd. Electrical branching filter
FR2509537A1 (en) * 1981-02-27 1983-01-14 Thomson Csf DIELECTRIC RESONATOR PASSER FILTER

Also Published As

Publication number Publication date
EP0101369A1 (en) 1984-02-22
FR2531815A1 (en) 1984-02-17
ATE34488T1 (en) 1988-06-15
DE3376717D1 (en) 1988-06-23
EP0101369B1 (en) 1988-05-18

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Legal Events

Date Code Title Description
ST Notification of lapse
CD Change of name or company name