DE69728215D1 - Hochfrequenzfilter - Google Patents

Hochfrequenzfilter

Info

Publication number
DE69728215D1
DE69728215D1 DE69728215T DE69728215T DE69728215D1 DE 69728215 D1 DE69728215 D1 DE 69728215D1 DE 69728215 T DE69728215 T DE 69728215T DE 69728215 T DE69728215 T DE 69728215T DE 69728215 D1 DE69728215 D1 DE 69728215D1
Authority
DE
Germany
Prior art keywords
high frequency
frequency filter
filter
frequency
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 - Lifetime
Application number
DE69728215T
Other languages
English (en)
Other versions
DE69728215T2 (de
Inventor
Yutaka Taguchi
Kazuo Eda
Shun-Ichi Seki
Keiji Onischi
Toru Yamada
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69728215D1 publication Critical patent/DE69728215D1/de
Application granted granted Critical
Publication of DE69728215T2 publication Critical patent/DE69728215T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6433—Coupled resonator filters
    • H03H9/6483—Ladder SAW filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02834—Means for compensation or elimination of undesirable effects of temperature influence

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Non-Reversible Transmitting Devices (AREA)
DE69728215T 1996-06-14 1997-06-12 Hochfrequenzfilter Expired - Lifetime DE69728215T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP15434696 1996-06-14
JP15434696A JP3739858B2 (ja) 1996-06-14 1996-06-14 高周波フィルタ

Publications (2)

Publication Number Publication Date
DE69728215D1 true DE69728215D1 (de) 2004-04-29
DE69728215T2 DE69728215T2 (de) 2004-08-19

Family

ID=15582159

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69728215T Expired - Lifetime DE69728215T2 (de) 1996-06-14 1997-06-12 Hochfrequenzfilter

Country Status (4)

Country Link
US (1) US5894251A (de)
EP (1) EP0813298B1 (de)
JP (1) JP3739858B2 (de)
DE (1) DE69728215T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6441539B1 (en) * 1999-11-11 2002-08-27 Murata Manufacturing Co., Ltd. Piezoelectric resonator
EP1239588A2 (de) * 2001-03-04 2002-09-11 Kazuhiko Yamanouchi Akustisches Oberflächenwellensubstrat und akustischer Oberflächenwellenfunktionsbaustein
US6809611B2 (en) * 2001-10-01 2004-10-26 Matsushita Electric Industrial Co., Ltd. Composite filter, antenna duplexer, and communication apparatus
US7888842B2 (en) * 2004-02-13 2011-02-15 University Of Maine System Board Of Trustees Ultra-thin film electrodes and protective layer for high temperature device applications
US7285894B1 (en) 2004-02-13 2007-10-23 University Of Maine System Board Of Trustees Surface acoustic wave devices for high temperature applications
DE102007061413A1 (de) * 2007-12-11 2009-06-25 Telegärtner Karl Gärtner GmbH Hochpassfilter
US8018304B2 (en) * 2009-04-15 2011-09-13 Nortel Networks Limited Device and method for cascading filters of different materials
US8264298B2 (en) * 2009-10-01 2012-09-11 Unidyne, Inc. Filtering device and a method for filtering a signal
US8339216B2 (en) * 2009-10-01 2012-12-25 Ubidyne, Inc. Duplexer and method for separating a transmit signal and a receive signal
US8421554B2 (en) * 2009-10-01 2013-04-16 Ubidyne, Inc. Filtering device for filtering RF signals and method for filtering RF signals
CN102386885A (zh) * 2011-06-20 2012-03-21 清华大学 一种具有大机电耦合系数和低插入损耗的声表面波滤波器及其专用压电薄膜
KR102556605B1 (ko) * 2015-12-07 2023-07-17 가부시키가이샤 와이솔재팬 듀플렉서 디바이스

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5219044A (en) * 1975-08-04 1977-01-14 Nippon Telegr & Teleph Corp <Ntt> Surface acoustic wave filter
JPS548446A (en) * 1977-06-22 1979-01-22 Seiko Instr & Electronics Ltd Frequency temperature compensating circuit for electronic watch
US4349794A (en) * 1977-12-16 1982-09-14 Trw Inc. Shallow bulk acoustic wave devices
JPS5710104U (de) * 1980-06-19 1982-01-19
JPS5896351U (ja) * 1981-12-22 1983-06-30 日本電気株式会社 アンテナ共用器
JPS58154917A (ja) * 1982-03-10 1983-09-14 Hitachi Ltd 弾性表面波バンドパスフイルタ
JPS60126907A (ja) * 1983-12-12 1985-07-06 Nippon Telegr & Teleph Corp <Ntt> 単一応答複合圧電振動素子
EP0166880B1 (de) * 1984-06-05 1990-01-03 Kabushiki Kaisha Toshiba Akustische Oberflächen-Wellen-Anordnung
JPS61230419A (ja) * 1985-04-03 1986-10-14 Toyo Commun Equip Co Ltd ２ポ−トｉｄｔ励振型共振器及び共振器フイルタ
JPS62169526U (de) * 1986-04-16 1987-10-27
JPH071859B2 (ja) * 1988-03-11 1995-01-11 国際電気株式会社 弾性表面波フィルタ
US5202652A (en) * 1989-10-13 1993-04-13 Hitachi, Ltd. Surface acoustic wave filter device formed on a plurality of piezoelectric substrates
JPH03222512A (ja) * 1990-01-29 1991-10-01 Oki Electric Ind Co Ltd 有極形ｓａｗ共振器フィルタ
JPH04196829A (ja) * 1990-11-28 1992-07-16 Hitachi Ltd 分波装置およびそれを用いた移動無線機
US5254962A (en) * 1992-06-19 1993-10-19 Motorola, Inc. Combined acoustic wave device and ceramic block filter structure
FI93503C (fi) * 1993-03-03 1995-04-10 Lk Products Oy Radiotaajuussuodatin
JP3230623B2 (ja) * 1993-06-23 2001-11-19 日本無線株式会社 複合フィルタ
JPH0722808A (ja) * 1993-06-30 1995-01-24 Japan Radio Co Ltd 複合フィルタ
JPH07115303A (ja) * 1993-10-14 1995-05-02 Murata Mfg Co Ltd 高周波フィルタ
JPH07176912A (ja) * 1993-12-17 1995-07-14 Sanyo Electric Co Ltd 高周波フィルタ

Also Published As

Publication number Publication date
EP0813298A3 (de) 1998-09-02
US5894251A (en) 1999-04-13
DE69728215T2 (de) 2004-08-19
EP0813298A2 (de) 1997-12-17
EP0813298B1 (de) 2004-03-24
JPH104332A (ja) 1998-01-06
JP3739858B2 (ja) 2006-01-25

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Legal Events

Date Code Title Description
8381 Inventor (new situation)

Inventor name: TAGUCHI, YUTAKA, TAKATSUKI-SHI, OSAKA 569, JP

Inventor name: EDA, KAZUO, NARA-SHI, NARA 631, JP

Inventor name: SEKI, SHUN-ICHI, AMAGASAKI-SHI, HYOGO 661, JP

Inventor name: ONISHI, KEIJI, SETTSU-SHI, OSAKA 566, JP

Inventor name: YAMADA, TORU, KATANO-SHI, OSAKA 576, JP

8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP