JPS6421525U - - Google Patents

Info

Publication number
JPS6421525U
JPS6421525U JP1987114721U JP11472187U JPS6421525U JP S6421525 U JPS6421525 U JP S6421525U JP 1987114721 U JP1987114721 U JP 1987114721U JP 11472187 U JP11472187 U JP 11472187U JP S6421525 U JPS6421525 U JP S6421525U
Authority
JP
Japan
Prior art keywords
resonant
series
resonant frequency
parallel
elements
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.)
Granted
Application number
JP1987114721U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0513061Y2 (OSRAM
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 filed Critical
Priority to JP1987114721U priority Critical patent/JPH0513061Y2/ja
Priority to US07/224,499 priority patent/US4841264A/en
Priority to GB8817233A priority patent/GB2208341B/en
Priority to KR2019880012015U priority patent/KR940006976Y1/ko
Publication of JPS6421525U publication Critical patent/JPS6421525U/ja
Application granted granted Critical
Publication of JPH0513061Y2 publication Critical patent/JPH0513061Y2/ja
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 elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/58—Multiple crystal filters
    • H03H9/60—Electric coupling means therefor
    • H03H9/605—Electric coupling means therefor consisting of a ladder configuration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
JP1987114721U 1987-07-27 1987-07-27 Expired - Lifetime JPH0513061Y2 (OSRAM)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1987114721U JPH0513061Y2 (OSRAM) 1987-07-27 1987-07-27
US07/224,499 US4841264A (en) 1987-07-27 1988-07-19 Ladder-type ceramic filter
GB8817233A GB2208341B (en) 1987-07-27 1988-07-20 Ladder-type ceramic filter
KR2019880012015U KR940006976Y1 (ko) 1987-07-27 1988-07-26 사다리형 세라믹 필터

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987114721U JPH0513061Y2 (OSRAM) 1987-07-27 1987-07-27

Publications (2)

Publication Number Publication Date
JPS6421525U true JPS6421525U (OSRAM) 1989-02-02
JPH0513061Y2 JPH0513061Y2 (OSRAM) 1993-04-06

Family

ID=14644956

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987114721U Expired - Lifetime JPH0513061Y2 (OSRAM) 1987-07-27 1987-07-27

Country Status (4)

Country Link
US (1) US4841264A (OSRAM)
JP (1) JPH0513061Y2 (OSRAM)
KR (1) KR940006976Y1 (OSRAM)
GB (1) GB2208341B (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH042123U (OSRAM) * 1990-04-20 1992-01-09

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01314008A (ja) * 1988-06-13 1989-12-19 Ngk Spark Plug Co Ltd 梯子型圧電フィルタ
JPH0522073A (ja) * 1991-07-10 1993-01-29 Ngk Spark Plug Co Ltd 梯子型電気濾波器
US5471178A (en) * 1994-02-03 1995-11-28 Motorola, Inc. Ladder filter and method for producing conjugately matched impedance
EP1365508A2 (en) * 1995-01-19 2003-11-26 Matsushita Electric Industrial Co., Ltd. Piezoelectric filter, its manufacturing method, and intermediate frequency filter
US5939957A (en) * 1996-07-26 1999-08-17 Ngk Spark Plug Co., Ltd. 6-elements ladder type piezoelectric filter
JP3228223B2 (ja) * 1998-05-26 2001-11-12 株式会社村田製作所 弾性表面波フィルタ
US6377136B1 (en) * 2000-02-04 2002-04-23 Agere Systems Guardian Corporation Thin film resonator filter having at least one component with different resonant frequency sets or electrode capacitance
GB0012437D0 (en) 2000-05-24 2000-07-12 Univ Cranfield Improvements to filters
KR20030062031A (ko) * 2002-01-16 2003-07-23 백준기 도시락 용기
JP2005045475A (ja) * 2003-07-28 2005-02-17 Murata Mfg Co Ltd 弾性表面波装置、通信機
JP4797169B2 (ja) * 2006-03-20 2011-10-19 国立大学法人富山大学 整理ケース及び整理方法
JP4181185B2 (ja) * 2006-04-27 2008-11-12 富士通メディアデバイス株式会社 フィルタおよび分波器
CN106664074B (zh) * 2014-07-30 2020-06-23 京瓷株式会社 弹性波元件、滤波器元件及通信装置
JP6972954B2 (ja) * 2017-11-20 2021-11-24 株式会社村田製作所 高周波フィルタおよびマルチプレクサ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1795204A (en) * 1927-01-03 1931-03-03 American Telephone & Telegraph Electrical wave filter
US1921035A (en) * 1931-09-30 1933-08-08 Bell Telephone Labor Inc Wave filter
US4651109A (en) * 1984-06-12 1987-03-17 Murata Manufacturing Co., Ltd. Piezoelectric resonance component having an improved group delay time characteristic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH042123U (OSRAM) * 1990-04-20 1992-01-09

Also Published As

Publication number Publication date
GB8817233D0 (en) 1988-08-24
US4841264A (en) 1989-06-20
GB2208341B (en) 1991-07-03
KR890003741U (ko) 1989-04-13
GB2208341A (en) 1989-03-22
KR940006976Y1 (ko) 1994-10-07
JPH0513061Y2 (OSRAM) 1993-04-06

Similar Documents

Publication Publication Date Title
JPS6421525U (OSRAM)
JP4154949B2 (ja) Ｓａｗフィルタ
JPH01314008A (ja) 梯子型圧電フィルタ
US4423394A (en) Multiple pole bandpass filter having monolithic crystal elements
JPS5994911A (ja) 複合型セラミツク共振子の製造法
JPH0191328U (OSRAM)
JPH0119462Y2 (OSRAM)
JPH0370414U (OSRAM)
JPS6244592Y2 (OSRAM)
JPH0434023U (OSRAM)
JPH0233397Y2 (OSRAM)
JPS5822334Y2 (ja) 矩形圧電共振子を用いた梯子型フイルタ
JPS5832338Y2 (ja) ラダ−形セラミックフィルタ
JPS5844661Y2 (ja) セラミツクフイルタ
JPS6081910A (ja) フイルタバンク
JPS628583Y2 (OSRAM)
JPH04249907A (ja) 弾性表面波フィルタ
KR100190631B1 (ko) 압전세라믹 공진자를 이용한 사다리형 필터
JPS5834812Y2 (ja) 雑音除去回路
JPS5912815Y2 (ja) 圧電フイルタ
JPS59104601U (ja) マイクロ波フイルタ回路
JPH04230108A (ja) 弾性表面波フィルタ
JPS60139330U (ja) バンドパスフイルタ
JPS5861501U (ja) 有極形帯域通過ろ波器
JPS61131126U (OSRAM)