SG74699A1 - Surface acoustic wave filter - Google Patents

Surface acoustic wave filter

Info

Publication number
SG74699A1
SG74699A1 SG1999000329A SG1999000329A SG74699A1 SG 74699 A1 SG74699 A1 SG 74699A1 SG 1999000329 A SG1999000329 A SG 1999000329A SG 1999000329 A SG1999000329 A SG 1999000329A SG 74699 A1 SG74699 A1 SG 74699A1
Authority
SG
Singapore
Prior art keywords
acoustic wave
surface acoustic
wave filter
filter
wave
Prior art date
Application number
SG1999000329A
Other languages
English (en)
Inventor
Tadamasa Ushiroku
Norio Taniguchi
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 SG74699A1 publication Critical patent/SG74699A1/en

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
    • H03H9/25—Constructional features of resonators 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
    • H03H9/02—Details
    • H03H9/05—Holders; Supports
    • H03H9/10—Mounting in enclosures
    • H03H9/1064—Mounting in enclosures for surface acoustic wave [SAW] devices
    • H03H9/1071—Mounting in enclosures for surface acoustic wave [SAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the SAW device
    • 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
    • H03H9/02952—Means for compensation or elimination of undesirable effects of parasitic capacitance
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
SG1999000329A 1998-02-17 1999-02-02 Surface acoustic wave filter SG74699A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP03517598A JP3728912B2 (ja) 1998-02-17 1998-02-17 弾性表面波フィルタ

Publications (1)

Publication Number Publication Date
SG74699A1 true SG74699A1 (en) 2000-08-22

Family

ID=12434525

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1999000329A SG74699A1 (en) 1998-02-17 1999-02-02 Surface acoustic wave filter

Country Status (5)

Country Link
EP (1) EP0936735B1 (ko)
JP (1) JP3728912B2 (ko)
KR (1) KR100297856B1 (ko)
DE (1) DE69920992T2 (ko)
SG (1) SG74699A1 (ko)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19932649A1 (de) 1999-07-13 2001-02-08 Epcos Ag SAW-Filter des Reaktanzfiltertyps mit verbesserter Sperrbereichsunterdrückung und Verfahren zur Optimierung der Sperrbereichsunterdrückung
JP2001267881A (ja) * 2000-03-17 2001-09-28 Fujitsu Media Device Kk 弾性表面波デバイス及びこれを用いた通信装置、並びにアンテナデュプレクサ
JP3780496B2 (ja) * 2000-06-30 2006-05-31 京セラ株式会社 弾性表面波フィルタ
JP3509771B2 (ja) * 2001-04-18 2004-03-22 株式会社村田製作所 弾性表面波フィルタ装置、通信装置
JP3873802B2 (ja) 2001-06-12 2007-01-31 株式会社村田製作所 弾性表面波フィルタ
JP2008035007A (ja) 2006-07-27 2008-02-14 Fujitsu Media Device Kk フィルタ
EP3176948B1 (en) * 2014-07-30 2021-03-17 Kyocera Corporation Elastic wave element, filter element, and communication device
JP6429707B2 (ja) * 2015-03-31 2018-11-28 京セラ株式会社 弾性波素子，分波器および通信装置
JP6634973B2 (ja) * 2016-06-24 2020-01-22 株式会社村田製作所 弾性表面波フィルタ、デュプレクサおよびマルチプレクサ
JP7351604B2 (ja) * 2018-03-05 2023-09-27 太陽誘電株式会社 弾性波共振器、フィルタおよびマルチプレクサ
DE102018124157B4 (de) * 2018-10-01 2023-11-09 Rf360 Singapore Pte. Ltd. Für hohe Frequenzen ausgelegte SAW-Vorrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5958907A (ja) * 1982-09-29 1984-04-04 Hitachi Ltd 弾性表面波装置
EP0738039B1 (en) * 1995-04-12 2000-06-28 Matsushita Electric Industrial Co., Ltd. Resonator ladder surface acoustic wave filter
JP3243976B2 (ja) * 1995-08-14 2002-01-07 株式会社村田製作所 弾性表面波フィルタ

Also Published As

Publication number Publication date
KR19990072655A (ko) 1999-09-27
EP0936735B1 (en) 2004-10-13
DE69920992D1 (de) 2004-11-18
EP0936735A2 (en) 1999-08-18
KR100297856B1 (ko) 2001-09-26
JP3728912B2 (ja) 2005-12-21
EP0936735A3 (en) 2001-01-03
DE69920992T2 (de) 2005-10-20
JPH11234085A (ja) 1999-08-27

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