DE3268944D1 - Combline filter - Google Patents

Combline filter

Info

Publication number
DE3268944D1
DE3268944D1 DE8282105822T DE3268944T DE3268944D1 DE 3268944 D1 DE3268944 D1 DE 3268944D1 DE 8282105822 T DE8282105822 T DE 8282105822T DE 3268944 T DE3268944 T DE 3268944T DE 3268944 D1 DE3268944 D1 DE 3268944D1
Authority
DE
Germany
Prior art keywords
combline filter
combline
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
DE8282105822T
Other languages
English (en)
Inventor
Takeshi Meguro
Yukio Ito
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE3268944D1 publication Critical patent/DE3268944D1/de
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
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
    • H01P1/2056—Comb filters or interdigital filters with metallised resonator holes in a dielectric block

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
DE8282105822T 1981-06-30 1982-06-30 Combline filter Expired DE3268944D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56100520A JPS583301A (ja) 1981-06-30 1981-06-30 誘電体フィルタ

Publications (1)

Publication Number Publication Date
DE3268944D1 true DE3268944D1 (de) 1986-03-20

Family

ID=14276226

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282105822T Expired DE3268944D1 (de) 1981-06-30 1982-06-30 Combline filter

Country Status (5)

Country Link
US (1) US4450421A (de)
EP (1) EP0068504B1 (de)
JP (1) JPS583301A (de)
DE (1) DE3268944D1 (de)
GB (1) GB2105918B (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431977A (en) * 1982-02-16 1984-02-14 Motorola, Inc. Ceramic bandpass filter
USRE32768E (en) * 1982-02-16 1988-10-18 Motorola, Inc. Ceramic bandstop filter
JPS59134902U (ja) * 1983-02-26 1984-09-08 富士電気化学株式会社 誘電体フイルタ
IT1206330B (it) * 1983-10-19 1989-04-14 Telettra Lab Telefon Filtri per microonde a piu'cavita'.
JPS6152003A (ja) * 1984-08-21 1986-03-14 Murata Mfg Co Ltd 誘電体フイルタ
GB2165098B (en) * 1984-09-27 1988-05-25 Motorola Inc Radio frequency filters
US4742562A (en) * 1984-09-27 1988-05-03 Motorola, Inc. Single-block dual-passband ceramic filter useable with a transceiver
US4768003A (en) * 1984-09-28 1988-08-30 Oki Electric Industry Co., Inc. Microwave filter
JPS61140604U (de) * 1985-02-22 1986-08-30
US4596969A (en) * 1985-05-08 1986-06-24 Orion Industries, Inc. Interdigital duplexer with notch resonators
JPS6261504U (de) * 1985-10-07 1987-04-16
JPS62114506U (de) * 1986-01-13 1987-07-21
KR920001453B1 (ko) * 1986-05-12 1992-02-14 오끼뎅끼 고오교오 가부시끼가이샤 유전체 필터
JPH01112801A (ja) * 1987-10-26 1989-05-01 Kokusai Electric Co Ltd 誘電体帯域フィルタ
US5010309A (en) * 1989-12-22 1991-04-23 Motorola, Inc. Ceramic block filter with co-fired coupling pins
US5151670A (en) * 1991-04-10 1992-09-29 Radio Frequency Systems, Inc. Duplexing filter
FI88830C (fi) * 1991-05-24 1993-07-12 Telenokia Oy Comb-line-hoegfrekvensfilter
US5446729A (en) * 1993-11-01 1995-08-29 Allen Telecom Group, Inc. Compact, low-intermodulation multiplexer employing interdigital filters
US5428325A (en) * 1993-12-10 1995-06-27 Allen Telecom Group, Inc. RF filters and multiplexers with resonator decouplers
FI98870C (fi) * 1994-05-26 1997-08-25 Lk Products Oy Dielektrinen suodatin
US5751199A (en) * 1996-01-16 1998-05-12 Trw Inc. Combline multiplexer with planar common junction input
US6313721B1 (en) * 1999-08-06 2001-11-06 Ube Electronics, Ltd. High performance dielectric ceramic filter using a non-linear array of holes
US6806791B1 (en) 2000-02-29 2004-10-19 Radio Frequency Systems, Inc. Tunable microwave multiplexer
US7405637B1 (en) * 2004-06-29 2008-07-29 Hrl Laboratories, Llc Miniature tunable filter having an electrostatically adjustable membrane
US7861398B1 (en) * 2005-06-23 2011-01-04 Hrl Laboratories, Llc Method for fabricating a miniature tunable filter
CN100550510C (zh) * 2005-06-23 2009-10-14 宇部兴产株式会社 用于基站通信装备的电介质滤波器
US7486161B2 (en) * 2005-12-19 2009-02-03 Universal Microwave Technology, Inc. Reverse-phase cross coupling structure
WO2014132914A1 (ja) * 2013-02-26 2014-09-04 京セラ株式会社 誘電体フィルタ，デュプレクサおよび通信装置
JP5801362B2 (ja) * 2013-09-13 2015-10-28 東光株式会社 誘電体導波管入出力構造、および、それを用いた誘電体導波管デュプレクサ
GB201403180D0 (en) * 2014-02-24 2014-04-09 Radio Design Ceramic waveguide filter apparatus
CN107994304B (zh) * 2017-12-26 2021-12-17 京信通信技术(广州)有限公司 多模介质滤波器及其调试方法
FR3117276A1 (fr) * 2020-12-03 2022-06-10 Swissto12 Sa Filtre à guide d’onde en peigne

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1131114A (en) * 1966-06-08 1968-10-23 Marconi Co Ltd Improvements in or relating to microwave filters
US4179673A (en) * 1977-02-14 1979-12-18 Murata Manufacturing Co., Ltd. Interdigital filter
CA1128152A (en) * 1978-05-13 1982-07-20 Takuro Sato High frequency filter
DE3164402D1 (en) * 1980-04-28 1984-08-02 Oki Electric Ind Co Ltd A high frequency filter
JPS5717201A (en) * 1980-07-07 1982-01-28 Fujitsu Ltd Dielectric substance filter

Also Published As

Publication number Publication date
GB2105918B (en) 1985-04-03
US4450421A (en) 1984-05-22
JPS583301A (ja) 1983-01-10
GB2105918A (en) 1983-03-30
EP0068504A1 (de) 1983-01-05
JPS6211801B2 (de) 1987-03-14
EP0068504B1 (de) 1986-02-05

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Legal Events

Date Code Title Description
8328 Change in the person/name/address of the agent

Free format text: REINLAENDER, C., DIPL.-ING. DR.-ING., PAT.-ANW., 8000 MUENCHEN

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee