DE60231043D1 - Oberflächenwellenfilter - Google Patents

Oberflächenwellenfilter

Info

Publication number
DE60231043D1
DE60231043D1 DE60231043T DE60231043T DE60231043D1 DE 60231043 D1 DE60231043 D1 DE 60231043D1 DE 60231043 T DE60231043 T DE 60231043T DE 60231043 T DE60231043 T DE 60231043T DE 60231043 D1 DE60231043 D1 DE 60231043D1
Authority
DE
Germany
Prior art keywords
wave filter
surface wave
filter
wave
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
DE60231043T
Other languages
English (en)
Inventor
Akio Tsunekawa
Shunichi Seki
Shinobu Nakaya
Hiroyuki Nakamura
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
Panasonic 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 Panasonic Corp filed Critical Panasonic Corp
Application granted granted Critical
Publication of DE60231043D1 publication Critical patent/DE60231043D1/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
    • 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
    • H03H9/6436—Coupled resonator filters having one acoustic track only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/0023—Balance-unbalance or balance-balance networks
    • H03H9/0028—Balance-unbalance or balance-balance networks using surface acoustic wave devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/0023—Balance-unbalance or balance-balance networks
    • H03H9/0028—Balance-unbalance or balance-balance networks using surface acoustic wave devices
    • H03H9/0033—Balance-unbalance or balance-balance networks using surface acoustic wave devices having one acoustic track only
    • H03H9/0042—Balance-unbalance or balance-balance networks using surface acoustic wave devices having one acoustic track only the balanced terminals being on opposite sides of the track
    • 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
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14576—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger
    • H03H9/14582—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger the last fingers having a different pitch
    • 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
    • H03H9/643—Means for obtaining a particular transfer characteristic the transfer characteristic being determined by reflective or coupling array characteristics
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/25—Constructional features of resonators using surface acoustic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
DE60231043T 2001-06-29 2002-06-26 Oberflächenwellenfilter Expired - Lifetime DE60231043D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001198192 2001-06-29
PCT/JP2002/006434 WO2003003574A1 (fr) 2001-06-29 2002-06-26 Filtre a onde acoustique de surface

Publications (1)

Publication Number Publication Date
DE60231043D1 true DE60231043D1 (de) 2009-03-19

Family

ID=19035679

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60231043T Expired - Lifetime DE60231043D1 (de) 2001-06-29 2002-06-26 Oberflächenwellenfilter

Country Status (8)

Country Link
US (1) US6972643B2 (de)
EP (1) EP1411634B1 (de)
JP (1) JPWO2003003574A1 (de)
KR (1) KR100496406B1 (de)
CN (1) CN1215643C (de)
DE (1) DE60231043D1 (de)
TW (1) TW550882B (de)
WO (1) WO2003003574A1 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4090250B2 (ja) * 2001-12-10 2008-05-28 富士通メディアデバイス株式会社 弾性表面波フィルタ
CN100452650C (zh) * 2003-07-02 2009-01-14 京瓷株式会社 弹性表面波装置及使用该装置的通信装置
KR101067395B1 (ko) * 2003-11-21 2011-09-27 파나소닉 주식회사 탄성 표면파 필터
KR100817849B1 (ko) * 2004-01-09 2008-03-31 마쯔시다덴기산교 가부시키가이샤 일단자쌍 탄성 표면파 공진자 및 이를 이용한 탄성 표면파 필터
JP4432968B2 (ja) * 2004-07-06 2010-03-17 セイコーエプソン株式会社 共振子型ｓａｗフィルタ
JP4502779B2 (ja) * 2004-10-27 2010-07-14 京セラ株式会社 弾性表面波素子および通信装置
JP4550549B2 (ja) * 2004-10-27 2010-09-22 京セラ株式会社 弾性表面波素子および通信装置
JP4601411B2 (ja) * 2004-12-20 2010-12-22 京セラ株式会社 弾性表面波装置および通信装置
JP4601415B2 (ja) * 2004-12-24 2010-12-22 京セラ株式会社 弾性表面波装置および通信装置
JP4583243B2 (ja) * 2005-05-27 2010-11-17 京セラ株式会社 弾性表面波共振器および弾性表面波装置並びに通信装置
JP4698362B2 (ja) * 2005-09-27 2011-06-08 京セラ株式会社 弾性表面波共振器及び弾性表面波装置並びに通信装置
US7902716B2 (en) * 2005-10-27 2011-03-08 Kyocera Corporation Surface acoustic wave device and communication apparatus
JP5094074B2 (ja) * 2006-07-27 2012-12-12 京セラ株式会社 弾性表面波素子及び弾性表面波装置
JP2008252678A (ja) * 2007-03-30 2008-10-16 Tdk Corp 縦結合共振子型弾性表面波フィルタ
JP5099219B2 (ja) * 2008-05-07 2012-12-19 株式会社村田製作所 弾性波フィルタ装置
JP5163746B2 (ja) * 2008-10-24 2013-03-13 セイコーエプソン株式会社 弾性表面波共振子、弾性表面波発振器および弾性表面波モジュール装置
JP2010251964A (ja) 2009-04-14 2010-11-04 Murata Mfg Co Ltd 弾性波フィルタ及び通信機
JP5158104B2 (ja) * 2010-01-09 2013-03-06 セイコーエプソン株式会社 弾性表面波共振子、弾性表面波発振器および弾性表面波モジュール装置
JP5369197B2 (ja) * 2010-02-09 2013-12-18 京セラ株式会社 弾性波装置
DE102010021164B4 (de) 2010-05-21 2019-02-21 Snaptrack, Inc. Balanced/Unbalanced arbeitendes SAW Filter
JP2012065272A (ja) * 2010-09-17 2012-03-29 Nippon Dempa Kogyo Co Ltd 弾性波デバイス
US9379308B2 (en) * 2010-11-15 2016-06-28 Epcos Ag Piezoelectric component
DE102012110504B4 (de) 2012-11-02 2019-09-12 Snaptrack, Inc. Elektroakustisches Filter mit Tiefpasscharakteristik
WO2015151705A1 (ja) * 2014-03-31 2015-10-08 株式会社村田製作所 弾性表面波フィルタ
DE102015107231B4 (de) * 2015-05-08 2021-09-16 Snaptrack, Inc. Kaskadierter Resonator
JP6445152B2 (ja) * 2016-01-29 2018-12-26 京セラ株式会社 弾性波共振子、弾性波フィルタ、分波器および通信装置
US10461720B2 (en) 2017-09-21 2019-10-29 Snaptrack, Inc. Acoustic filter
CN112840561A (zh) * 2018-07-27 2021-05-25 福瑞斯恩系统 谐振腔表面声波(saw)滤波器
JP7272440B2 (ja) 2019-07-17 2023-05-12 株式会社村田製作所 弾性波フィルタおよびマルチプレクサ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3160023B2 (ja) 1991-08-21 2001-04-23 東洋通信機株式会社 縦結合二重モードｓａｗフィルタ
JP3419949B2 (ja) * 1995-03-14 2003-06-23 東洋通信機株式会社 縦結合二重モードｓａｗフィルタ
US5790000A (en) 1995-06-16 1998-08-04 Northern Telecom Limited Cascaded surface wave device filters providing balanced and unbalanced signal connections
DE19849782B4 (de) * 1998-10-28 2004-09-30 Epcos Ag Oberflächenwellenanordnung mit zumindest zwei Oberflächenwellen-Strukturen
US6255915B1 (en) * 1999-05-10 2001-07-03 Research In Motion Limited Differential surface acoustic wave filter having balanced outputs
JP3391346B2 (ja) 2000-04-18 2003-03-31 株式会社村田製作所 縦結合共振子型弾性表面波フィルタ
JP3358615B2 (ja) 2000-06-26 2002-12-24 株式会社村田製作所 縦結合共振子型弾性表面波フィルタ
JP2002204139A (ja) * 2000-10-31 2002-07-19 Kyocera Corp 弾性表面波フィルタ

Also Published As

Publication number Publication date
CN1215643C (zh) 2005-08-17
KR100496406B1 (ko) 2005-06-17
KR20040014995A (ko) 2004-02-18
EP1411634A1 (de) 2004-04-21
TW550882B (en) 2003-09-01
EP1411634A4 (de) 2008-02-06
US6972643B2 (en) 2005-12-06
EP1411634B1 (de) 2009-01-28
US20040108918A1 (en) 2004-06-10
JPWO2003003574A1 (ja) 2004-10-21
CN1465133A (zh) 2003-12-31
WO2003003574A1 (fr) 2003-01-09

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Legal Events

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8320 Willingness to grant licences declared (paragraph 23)