DE602007000569D1 - Abstimmbares Filter - Google Patents

Abstimmbares Filter

Info

Publication number
DE602007000569D1
DE602007000569D1 DE602007000569T DE602007000569T DE602007000569D1 DE 602007000569 D1 DE602007000569 D1 DE 602007000569D1 DE 602007000569 T DE602007000569 T DE 602007000569T DE 602007000569 T DE602007000569 T DE 602007000569T DE 602007000569 D1 DE602007000569 D1 DE 602007000569D1
Authority
DE
Germany
Prior art keywords
tunable filter
tunable
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.)
Active
Application number
DE602007000569T
Other languages
English (en)
Inventor
Kunihiro Kawai
Hiroshi Okazaki
Shoichi Narahashi
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.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
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 NTT Docomo Inc filed Critical NTT Docomo Inc
Publication of DE602007000569D1 publication Critical patent/DE602007000569D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • H01P1/203—Strip line filters
    • H01P1/20327—Electromagnetic interstage coupling
    • H01P1/20336—Comb or interdigital filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/04—Coupling devices of the waveguide type with variable factor of coupling

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
DE602007000569T 2006-02-28 2007-02-22 Abstimmbares Filter Active DE602007000569D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006053853A JP4621155B2 (ja) 2006-02-28 2006-02-28 可変フィルタ

Publications (1)

Publication Number Publication Date
DE602007000569D1 true DE602007000569D1 (de) 2009-04-09

Family

ID=38137746

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007000569T Active DE602007000569D1 (de) 2006-02-28 2007-02-22 Abstimmbares Filter

Country Status (6)

Country Link
US (1) US7573356B2 (de)
EP (1) EP1826865B1 (de)
JP (1) JP4621155B2 (de)
KR (1) KR100823219B1 (de)
CN (1) CN101030666B (de)
DE (1) DE602007000569D1 (de)

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US8018312B2 (en) * 2008-02-12 2011-09-13 International Business Machines Corporation Inductor and method of operating an inductor by combining primary and secondary coils with coupling structures
US7944330B2 (en) * 2008-03-06 2011-05-17 Funai Electric Co., Ltd. Resonant element and high frequency filter, and wireless communication apparatus equipped with the resonant element or the high frequency filter
US8044751B2 (en) * 2008-07-18 2011-10-25 National Taiwan University Switchable bandpass filter having stepped-impedance resonators loaded with diodes
GB2465553A (en) * 2008-11-18 2010-05-26 Univ Bristol Resonator tuning using switches to control the degree of coupling between resonant modes
KR20100072690A (ko) * 2008-12-22 2010-07-01 한국전자통신연구원 광대역 가변 대역통과 필터
JP5294013B2 (ja) * 2008-12-25 2013-09-18 富士通株式会社 フィルタ、通信モジュール、および通信装置
EP2251927A1 (de) * 2009-05-14 2010-11-17 Thomson Licensing Sperrbandfilter mit Doppelreaktion
KR101295869B1 (ko) * 2009-12-21 2013-08-12 한국전자통신연구원 복수의 절연층들에 형성된 선로 필터
JP5565091B2 (ja) * 2010-05-19 2014-08-06 富士通株式会社 可変バンドパスフィルタ及び通信装置
JP2012191521A (ja) * 2011-03-11 2012-10-04 Fujitsu Ltd 可変フィルタ装置および通信装置
JP5786483B2 (ja) * 2011-06-20 2015-09-30 ソニー株式会社 通信装置
CN102496764B (zh) * 2011-12-30 2014-07-16 清华大学 一种可变频超导微带线谐振器
KR101351855B1 (ko) 2012-12-03 2014-01-22 주식회사 피에스텍 고전력용 가변 인덕터와 이를 사용한 필터
US9464994B2 (en) 2013-07-30 2016-10-11 Clemson University High sensitivity tunable radio frequency sensors
US9602077B2 (en) 2014-11-12 2017-03-21 Elwha Llc Surface acoustic wave device having selectable electrode elements
US9800226B2 (en) 2014-11-12 2017-10-24 Elwha Llc Surface acoustic wave device having combinable selectable electrode sub-elements
US9692389B2 (en) 2014-11-12 2017-06-27 Elwha Llc Surface acoustic wave device having matrices of combinable selectable electrode sub-elements
US9571065B2 (en) 2014-11-12 2017-02-14 Elwha Llc Surface acoustic wave device having end-to-end combinable selectable electrode sub-elements
CN104538714B (zh) * 2014-12-25 2017-04-26 深圳顺络电子股份有限公司 一种中心频率可调的带通滤波器
US10263330B2 (en) * 2016-05-26 2019-04-16 Nokia Solutions And Networks Oy Antenna elements and apparatus suitable for AAS calibration by selective couplerline and TRX RF subgroups
US11101531B2 (en) 2016-12-22 2021-08-24 Smiths Interconnect, Inc. Transmission line with tunable frequency response
CN110176659B (zh) * 2019-04-04 2021-05-11 南京航空航天大学 二进制式的带宽可重构的带通滤波器
EP4016567A4 (de) * 2019-08-30 2022-09-07 Huawei Technologies Co., Ltd. Variabler kondensator, reflektierender phasenschieber und halbleiterbauelement

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JPH03283909A (ja) 1990-03-30 1991-12-13 Kinseki Ltd 帯域フイルタ
US5055808A (en) * 1990-09-21 1991-10-08 Motorola, Inc. Bandwidth agile, dielectrically loaded resonator filter
JPH07147503A (ja) * 1993-11-24 1995-06-06 Murata Mfg Co Ltd 誘電体フィルタ
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JPH09181504A (ja) * 1995-12-22 1997-07-11 Sony Corp 誘電体フィルタ
US5808527A (en) 1996-12-21 1998-09-15 Hughes Electronics Corporation Tunable microwave network using microelectromechanical switches
US6043727A (en) * 1998-05-15 2000-03-28 Hughes Electronics Corporation Reconfigurable millimeterwave filter using stubs and stub extensions selectively coupled using voltage actuated micro-electro-mechanical switches
EP1116338B1 (de) * 1998-09-25 2004-11-24 Siemens Aktiengesellschaft Programmierbares mobilfunk-endgerät
JP2001230602A (ja) 2000-02-16 2001-08-24 Matsushita Electric Ind Co Ltd 可変フィルタ
JP2002009573A (ja) 2000-06-26 2002-01-11 Mitsubishi Electric Corp チューナブルフィルタ
US6452465B1 (en) * 2000-06-27 2002-09-17 M-Squared Filters, Llc High quality-factor tunable resonator
US6686817B2 (en) * 2000-12-12 2004-02-03 Paratek Microwave, Inc. Electronic tunable filters with dielectric varactors
JP2002208801A (ja) 2001-01-11 2002-07-26 Nikko Co 帯域可変型フィルタ回路及びそれを用いた高周波フロントエンド回路
JP2004536287A (ja) * 2001-04-11 2004-12-02 キョウセラ ワイヤレス コーポレイション 低損失チューニング可能強誘電体デバイスおよび特性決定の方法
US6778023B2 (en) 2001-07-31 2004-08-17 Nokia Corporation Tunable filter and method of tuning a filter
JP3854212B2 (ja) 2002-03-29 2006-12-06 株式会社東芝 高周波フィルタ
US6784766B2 (en) * 2002-08-21 2004-08-31 Raytheon Company MEMS tunable filters
JP4053504B2 (ja) 2004-01-30 2008-02-27 株式会社東芝 チューナブルフィルタ
JP2005223392A (ja) 2004-02-03 2005-08-18 Ntt Docomo Inc 結合線路およびフィルタ
JP3841305B2 (ja) 2004-02-03 2006-11-01 株式会社エヌ・ティ・ティ・ドコモ 可変共振器及び可変移相器
US7292124B2 (en) 2004-02-03 2007-11-06 Ntt Docomo, Inc. Variable resonator and variable phase shifter
JP4638711B2 (ja) 2004-10-27 2011-02-23 株式会社エヌ・ティ・ティ・ドコモ 共振器
JP2007009720A (ja) * 2005-06-28 2007-01-18 Toyota Industries Corp 可変容量型圧縮機

Also Published As

Publication number Publication date
EP1826865B1 (de) 2009-02-25
JP2007235457A (ja) 2007-09-13
KR20070089631A (ko) 2007-08-31
EP1826865A2 (de) 2007-08-29
CN101030666A (zh) 2007-09-05
EP1826865A3 (de) 2007-12-05
JP4621155B2 (ja) 2011-01-26
US20070200651A1 (en) 2007-08-30
US7573356B2 (en) 2009-08-11
KR100823219B1 (ko) 2008-04-18
CN101030666B (zh) 2010-12-15

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Legal Events

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