JPS53110349A - Elastic surface wave filter device - Google Patents

Elastic surface wave filter device

Info

Publication number
JPS53110349A
JPS53110349A JP2448877A JP2448877A JPS53110349A JP S53110349 A JPS53110349 A JP S53110349A JP 2448877 A JP2448877 A JP 2448877A JP 2448877 A JP2448877 A JP 2448877A JP S53110349 A JPS53110349 A JP S53110349A
Authority
JP
Japan
Prior art keywords
filter device
wave filter
surface wave
elastic surface
decrease
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.)
Pending
Application number
JP2448877A
Other languages
Japanese (ja)
Inventor
Hiroshi Kiyono
Noriaki Ooya
Sadao Takahashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2448877A priority Critical patent/JPS53110349A/en
Publication of JPS53110349A publication Critical patent/JPS53110349A/en
Pending 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
    • H03H9/6426—Combinations of the characteristics of different transducers

Abstract

PURPOSE:To obtain the necessary filter properties only by the arrangement of the input inter-digital electrodes, and thus to decrease the power loss.
JP2448877A 1977-03-08 1977-03-08 Elastic surface wave filter device Pending JPS53110349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2448877A JPS53110349A (en) 1977-03-08 1977-03-08 Elastic surface wave filter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2448877A JPS53110349A (en) 1977-03-08 1977-03-08 Elastic surface wave filter device

Publications (1)

Publication Number Publication Date
JPS53110349A true JPS53110349A (en) 1978-09-27

Family

ID=12139560

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2448877A Pending JPS53110349A (en) 1977-03-08 1977-03-08 Elastic surface wave filter device

Country Status (1)

Country Link
JP (1) JPS53110349A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412542A (en) * 1977-06-29 1979-01-30 Hitachi Ltd Elastic surface wave unit
JPS57125022U (en) * 1981-01-30 1982-08-04
JPS57125021U (en) * 1981-01-30 1982-08-04
EP1237275A2 (en) * 2001-03-01 2002-09-04 Murata Manufacturing Co., Ltd. Surface acoustic wave device and communications device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138852A (en) * 1974-08-02 1976-03-31 Philips Nv

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138852A (en) * 1974-08-02 1976-03-31 Philips Nv

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412542A (en) * 1977-06-29 1979-01-30 Hitachi Ltd Elastic surface wave unit
JPS6142447B2 (en) * 1977-06-29 1986-09-20 Hitachi Ltd
JPS57125022U (en) * 1981-01-30 1982-08-04
JPS57125021U (en) * 1981-01-30 1982-08-04
JPH0141226Y2 (en) * 1981-01-30 1989-12-06
JPH0141225Y2 (en) * 1981-01-30 1989-12-06
EP1237275A2 (en) * 2001-03-01 2002-09-04 Murata Manufacturing Co., Ltd. Surface acoustic wave device and communications device
EP1237275A3 (en) * 2001-03-01 2007-08-29 Murata Manufacturing Co., Ltd. Surface acoustic wave device and communications device

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