DE3850646D1 - Keramisches Filter. - Google Patents

Keramisches Filter.

Info

Publication number
DE3850646D1
DE3850646D1 DE3850646T DE3850646T DE3850646D1 DE 3850646 D1 DE3850646 D1 DE 3850646D1 DE 3850646 T DE3850646 T DE 3850646T DE 3850646 T DE3850646 T DE 3850646T DE 3850646 D1 DE3850646 D1 DE 3850646D1
Authority
DE
Germany
Prior art keywords
ceramic filter
ceramic
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 - Fee Related
Application number
DE3850646T
Other languages
English (en)
Other versions
DE3850646T2 (de
Inventor
Fumihito Nakano
Kiyoshi Hagawa
Kenji Endo
Kohei Wada
Katsuya Jindou
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Publication of DE3850646D1 publication Critical patent/DE3850646D1/de
Application granted granted Critical
Publication of DE3850646T2 publication Critical patent/DE3850646T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
DE3850646T 1987-12-28 1988-05-09 Keramisches Filter. Expired - Fee Related DE3850646T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62336653A JPH01175301A (ja) 1987-12-28 1987-12-28 誘電体フィルタ

Publications (2)

Publication Number Publication Date
DE3850646D1 true DE3850646D1 (de) 1994-08-18
DE3850646T2 DE3850646T2 (de) 1994-10-27

Family

ID=18301394

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3850646T Expired - Fee Related DE3850646T2 (de) 1987-12-28 1988-05-09 Keramisches Filter.

Country Status (4)

Country Link
US (1) US4806889A (de)
EP (1) EP0322993B1 (de)
JP (1) JPH01175301A (de)
DE (1) DE3850646T2 (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07101803B2 (ja) * 1989-12-19 1995-11-01 松下電器産業株式会社 誘電体共振器
US5004992A (en) * 1990-05-25 1991-04-02 Motorola, Inc. Multi-resonator ceramic filter and method for tuning and adjusting the resonators thereof
US5337002A (en) * 1991-03-01 1994-08-09 Mercer John E Locator device for continuously locating a dipole magnetic field transmitter and its method of operation
US5327108A (en) * 1991-03-12 1994-07-05 Motorola, Inc. Surface mountable interdigital block filter having zero(s) in transfer function
JP2561775B2 (ja) * 1991-03-29 1996-12-11 日本碍子株式会社 誘電体フィルター及びその周波数特性の調整方法
US5254962A (en) * 1992-06-19 1993-10-19 Motorola, Inc. Combined acoustic wave device and ceramic block filter structure
US5422610A (en) * 1993-09-29 1995-06-06 Motorola, Inc. Multi-filter device and method of making same
US5602518A (en) * 1995-03-24 1997-02-11 Motorola, Inc. Ceramic filter with channeled features to control magnetic coupling
JPH09107206A (ja) * 1995-08-04 1997-04-22 Ngk Spark Plug Co Ltd 誘電体フィルタ及びその結合容量調整方法
JP3023949B2 (ja) * 1995-12-12 2000-03-21 株式会社村田製作所 誘電体フィルタ
JP3014638B2 (ja) * 1996-03-15 2000-02-28 ティーディーケイ株式会社 誘電体フィルタ
JP2000165104A (ja) * 1998-11-25 2000-06-16 Murata Mfg Co Ltd 誘電体フィルタ、デュプレクサ及び通信機装置
CN100462706C (zh) * 2005-01-06 2009-02-18 清华大学 标准漏孔
US8823470B2 (en) 2010-05-17 2014-09-02 Cts Corporation Dielectric waveguide filter with structure and method for adjusting bandwidth
US9030278B2 (en) 2011-05-09 2015-05-12 Cts Corporation Tuned dielectric waveguide filter and method of tuning the same
US9130256B2 (en) 2011-05-09 2015-09-08 Cts Corporation Dielectric waveguide filter with direct coupling and alternative cross-coupling
US9130255B2 (en) * 2011-05-09 2015-09-08 Cts Corporation Dielectric waveguide filter with direct coupling and alternative cross-coupling
US9030279B2 (en) 2011-05-09 2015-05-12 Cts Corporation Dielectric waveguide filter with direct coupling and alternative cross-coupling
US9130258B2 (en) * 2013-09-23 2015-09-08 Cts Corporation Dielectric waveguide filter with direct coupling and alternative cross-coupling
US9583805B2 (en) 2011-12-03 2017-02-28 Cts Corporation RF filter assembly with mounting pins
US10116028B2 (en) 2011-12-03 2018-10-30 Cts Corporation RF dielectric waveguide duplexer filter module
US9666921B2 (en) 2011-12-03 2017-05-30 Cts Corporation Dielectric waveguide filter with cross-coupling RF signal transmission structure
US10050321B2 (en) 2011-12-03 2018-08-14 Cts Corporation Dielectric waveguide filter with direct coupling and alternative cross-coupling
WO2015157510A1 (en) 2014-04-10 2015-10-15 Cts Corporation Rf duplexer filter module with waveguide filter assembly
US11081769B2 (en) 2015-04-09 2021-08-03 Cts Corporation RF dielectric waveguide duplexer filter module
US10483608B2 (en) 2015-04-09 2019-11-19 Cts Corporation RF dielectric waveguide duplexer filter module
US11437691B2 (en) 2019-06-26 2022-09-06 Cts Corporation Dielectric waveguide filter with trap resonator

Family Cites Families (14)

* 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
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
US4464640A (en) * 1981-10-02 1984-08-07 Murata Manufacturing Co., Ltd. Distribution constant type filter
GB2109641B (en) * 1981-10-02 1985-08-14 Murata Manufacturing Co Distributed constant type filter
US4431977A (en) * 1982-02-16 1984-02-14 Motorola, Inc. Ceramic bandpass filter
US4607242A (en) * 1983-05-02 1986-08-19 Rockwell International Corporation Microwave filter
US4549857A (en) * 1984-08-03 1985-10-29 Carrier Corporation Hermetic motor compressor having a suction inlet and seal
JPS6143287A (ja) * 1984-08-03 1986-03-01 Toyota Motor Corp コンプレツサの運転制御方法
JPS6152003A (ja) * 1984-08-21 1986-03-14 Murata Mfg Co Ltd 誘電体フイルタ
JPH0617993B2 (ja) * 1986-06-28 1994-03-09 コニカ株式会社 帯電防止能および耐接着性に優れたハロゲン化銀写真感光材料
US4692726A (en) * 1986-07-25 1987-09-08 Motorola, Inc. Multiple resonator dielectric filter
US4745379A (en) * 1987-02-25 1988-05-17 Rockwell International Corp. Launcher-less and lumped capacitor-less ceramic comb-line filters
JPH06180901A (ja) * 1992-12-14 1994-06-28 Sony Corp テープテンション検出器及びこれを備えた磁気記録再生装置

Also Published As

Publication number Publication date
JPH01175301A (ja) 1989-07-11
EP0322993A2 (de) 1989-07-05
EP0322993A3 (en) 1990-04-04
DE3850646T2 (de) 1994-10-27
EP0322993B1 (de) 1994-07-13
US4806889A (en) 1989-02-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee