JPS6412710A - Surface acoustic wave element - Google Patents

Surface acoustic wave element

Info

Publication number
JPS6412710A
JPS6412710A JP16933887A JP16933887A JPS6412710A JP S6412710 A JPS6412710 A JP S6412710A JP 16933887 A JP16933887 A JP 16933887A JP 16933887 A JP16933887 A JP 16933887A JP S6412710 A JPS6412710 A JP S6412710A
Authority
JP
Japan
Prior art keywords
electrode group
acoustic wave
surface acoustic
electrodes
wave element
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
JP16933887A
Other languages
Japanese (ja)
Inventor
Nakahiro Harada
Eiki Cho
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP16933887A priority Critical patent/JPS6412710A/en
Publication of JPS6412710A publication Critical patent/JPS6412710A/en
Pending legal-status Critical Current

Links

Landscapes

  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

PURPOSE:To obtain a surface acoustic wave element with high excitation efficiency, by setting the thickness of a transparent piezoelectric film arranged at least on either side in an upper or a lower electrode group for exciting a surface acoustic wave inversely proportinal to a central frequency, and making it thin gradually advancing in a side direction. CONSTITUTION:The electrode group 3 is arranged obliquely so that plural electrodes 31, 32, and 33 whose exciting central frequencies are set differently from each other gradually can satisfy a Bragg condition, thereby, the electrode group 3 can be made into a wide band area. The piezoelectric film 1 arranged on the electrode group 3 is set so that the maximum SAW excitation efficiency in each central frequency of its lower electrodes 31, 32, and 33 can be maximized, and the piezoelectric films 11, 12, and 13 arranged on the electrodes 31, 32, and 33 sequentially are formed so as to be thinned in order.
JP16933887A 1987-07-07 1987-07-07 Surface acoustic wave element Pending JPS6412710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16933887A JPS6412710A (en) 1987-07-07 1987-07-07 Surface acoustic wave element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16933887A JPS6412710A (en) 1987-07-07 1987-07-07 Surface acoustic wave element

Publications (1)

Publication Number Publication Date
JPS6412710A true JPS6412710A (en) 1989-01-17

Family

ID=15884706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16933887A Pending JPS6412710A (en) 1987-07-07 1987-07-07 Surface acoustic wave element

Country Status (1)

Country Link
JP (1) JPS6412710A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005003847A1 (en) * 2003-07-07 2005-01-13 Murata Manufacturing Co., Ltd. Acoustooptic filter
JP2005267621A (en) * 2004-02-16 2005-09-29 Fuji Xerox Co Ltd Radio response device and radio response communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005003847A1 (en) * 2003-07-07 2005-01-13 Murata Manufacturing Co., Ltd. Acoustooptic filter
JP2005267621A (en) * 2004-02-16 2005-09-29 Fuji Xerox Co Ltd Radio response device and radio response communication system

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