TW200605500A - Balance-unbalance converting-type elastic wave filter and elastic wave filter device - Google Patents

Balance-unbalance converting-type elastic wave filter and elastic wave filter device

Info

Publication number
TW200605500A
TW200605500A TW094120773A TW94120773A TW200605500A TW 200605500 A TW200605500 A TW 200605500A TW 094120773 A TW094120773 A TW 094120773A TW 94120773 A TW94120773 A TW 94120773A TW 200605500 A TW200605500 A TW 200605500A
Authority
TW
Taiwan
Prior art keywords
elastic wave
wave filter
idt
filter
grounding portion
Prior art date
Application number
TW094120773A
Other languages
English (en)
Other versions
TWI287355B (en
Inventor
Kazumasa Haruta
Katsuhito Kuroda
Original Assignee
Murata Manufacturing Co
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 Murata Manufacturing Co filed Critical Murata Manufacturing Co
Publication of TW200605500A publication Critical patent/TW200605500A/zh
Application granted granted Critical
Publication of TWI287355B publication Critical patent/TWI287355B/zh

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02Details
    • H03H9/125Driving means, e.g. electrodes, coils
    • H03H9/145Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544Transducers of particular shape or position
    • H03H9/14588Horizontally-split transducers
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/64Filters using surface acoustic waves
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/0023Balance-unbalance or balance-balance networks
    • H03H9/0028Balance-unbalance or balance-balance networks using surface acoustic wave devices
    • H03H9/0047Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks
    • H03H9/0066Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks being electrically parallel
    • H03H9/0071Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks being electrically parallel the balanced terminals being on the same side of the tracks
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/0023Balance-unbalance or balance-balance networks
    • H03H9/0028Balance-unbalance or balance-balance networks using surface acoustic wave devices
    • H03H9/0085Balance-unbalance or balance-balance networks using surface acoustic wave devices having four acoustic tracks
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/70Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H03H9/72Networks using surface acoustic waves
    • H03H9/725Duplexers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
TW094120773A 2004-06-30 2005-06-22 Balance-unbalance converting-type elastic wave filter and elastic wave filter device TWI287355B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004193812 2004-06-30
PCT/JP2005/010911 WO2006003787A1 (ja) 2004-06-30 2005-06-15 バランス型弾性波フィルタ及び弾性波フィルタ装置

Publications (2)

Publication Number Publication Date
TW200605500A true TW200605500A (en) 2006-02-01
TWI287355B TWI287355B (en) 2007-09-21

Family

ID=35782599

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094120773A TWI287355B (en) 2004-06-30 2005-06-22 Balance-unbalance converting-type elastic wave filter and elastic wave filter device

Country Status (7)

Country Link
US (1) US7283016B2 (zh)
EP (1) EP1763133A4 (zh)
JP (1) JP3918102B2 (zh)
KR (1) KR100859097B1 (zh)
CN (1) CN1965477B (zh)
TW (1) TWI287355B (zh)
WO (1) WO2006003787A1 (zh)

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JP5052172B2 (ja) * 2006-04-03 2012-10-17 京セラ株式会社 弾性表面波装置および通信装置
WO2007116760A1 (ja) * 2006-04-06 2007-10-18 Murata Manufacturing Co., Ltd. デュプレクサ
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WO2007138844A1 (ja) * 2006-05-30 2007-12-06 Murata Manufacturing Co., Ltd. 弾性波装置
JP5121178B2 (ja) * 2006-07-24 2013-01-16 京セラ株式会社 弾性表面波装置及び通信装置
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JP4702454B2 (ja) * 2007-02-02 2011-06-15 株式会社村田製作所 弾性波フィルタ装置
JPWO2008108113A1 (ja) * 2007-03-01 2010-06-10 株式会社村田製作所 弾性波フィルタ装置及びデュプレクサ
JP4655161B2 (ja) 2007-05-22 2011-03-23 株式会社村田製作所 バランス型弾性波フィルタ装置及び複合フィルタ
WO2008146525A1 (ja) * 2007-05-28 2008-12-04 Murata Manufacturing Co., Ltd. デュプレクサ及び弾性波装置
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US8138858B1 (en) * 2007-10-29 2012-03-20 Rf Micro Devices, Inc. Architectures using multiple dual-mode surface acoustic wave devices
JP2009206688A (ja) 2008-02-27 2009-09-10 Fujitsu Media Device Kk バランスフィルタ
CN101874348B (zh) * 2008-03-27 2013-11-06 株式会社村田制作所 弹性波滤波装置
JP2009260463A (ja) * 2008-04-14 2009-11-05 Murata Mfg Co Ltd 弾性波フィルタ装置
KR101232242B1 (ko) * 2008-11-04 2013-02-12 가부시키가이샤 무라타 세이사쿠쇼 탄성파 필터장치 및 그것을 포함하는 모듈
JP4809448B2 (ja) * 2009-02-02 2011-11-09 日本電波工業株式会社 デュプレクサ
KR101684867B1 (ko) 2010-04-07 2016-12-09 삼성전자주식회사 공간 다중화 이득을 이용한 제어 정보 송수신 방법
DE102010021164B4 (de) 2010-05-21 2019-02-21 Snaptrack, Inc. Balanced/Unbalanced arbeitendes SAW Filter
JP5142302B2 (ja) * 2010-07-13 2013-02-13 太陽誘電株式会社 バランスフィルタ
KR101719325B1 (ko) 2010-07-19 2017-03-23 삼성전자주식회사 Bawr을 이용한 밸런스 구조의 rf 듀플렉서 및 rf 필터
CN103053112B (zh) * 2011-03-09 2015-12-09 天工松下滤波方案日本有限公司 弹性波装置
KR101595847B1 (ko) * 2011-09-01 2016-02-19 가부시키가이샤 무라타 세이사쿠쇼 탄성파 장치
KR101354983B1 (ko) * 2012-05-09 2014-01-29 (주)와이솔 표면 탄성파 소자
WO2014021042A1 (ja) 2012-08-02 2014-02-06 株式会社村田製作所 弾性波装置及び分波装置
JP5880529B2 (ja) * 2013-11-29 2016-03-09 株式会社村田製作所 弾性表面波フィルタ
US9680447B2 (en) * 2014-09-26 2017-06-13 Wisol Co., Ltd. Saw filter having ground terminals separated
US10541673B2 (en) 2016-10-28 2020-01-21 Skyworks Solutions, Inc. Acoustic wave filter including two types of acoustic wave resonators
WO2019131530A1 (ja) * 2017-12-27 2019-07-04 株式会社村田製作所 弾性波フィルタ

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Also Published As

Publication number Publication date
JP3918102B2 (ja) 2007-05-23
US7283016B2 (en) 2007-10-16
TWI287355B (en) 2007-09-21
EP1763133A4 (en) 2011-07-20
WO2006003787A1 (ja) 2006-01-12
JPWO2006003787A1 (ja) 2007-08-02
CN1965477A (zh) 2007-05-16
KR100859097B1 (ko) 2008-09-17
US20070103254A1 (en) 2007-05-10
EP1763133A1 (en) 2007-03-14
CN1965477B (zh) 2011-08-31
KR20070014183A (ko) 2007-01-31

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