JPS6454916A - Interdigital filter - Google Patents

Interdigital filter

Info

Publication number
JPS6454916A
JPS6454916A JP21203187A JP21203187A JPS6454916A JP S6454916 A JPS6454916 A JP S6454916A JP 21203187 A JP21203187 A JP 21203187A JP 21203187 A JP21203187 A JP 21203187A JP S6454916 A JPS6454916 A JP S6454916A
Authority
JP
Japan
Prior art keywords
electrode
piezoelectric vibrator
signal voltage
face
interdigital
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
JP21203187A
Other languages
Japanese (ja)
Inventor
Yoshitoyo Sakakibara
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP21203187A priority Critical patent/JPS6454916A/en
Publication of JPS6454916A publication Critical patent/JPS6454916A/en
Pending legal-status Critical Current

Links

Landscapes

  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:To simplify the structure by employing a piezoelectric vibrator with a two-split electrode formed on its upper face and with an entire face electrode formed to its lower face and utilizing a thickness shear vibration as an input/ output transducer thereby eliminating the need for interdigital forming impedance. CONSTITUTION:The piezoelectric vibrator whose upper face is formed with the two-split electrodes 17a, 17b and whose lower face is formed by the entire face electrode 17c utilizing the thickness-shear vibration mode is fitted to one slope of an ultrasonic wave delay medium 1 with the electrode 2 formed thereupon as the input/output transducer. Moreover, a signal voltage application lead wire 9 and a delay signal extraction lead wire 10 are fitted onto the split electrodes 17a, 17b of the transducer. Thus, a signal being the result of mixture of a delay signal voltage and an applied signal voltage is outputted by the piezoelectric vibrator between the electrodes 17b and 17c. Thus, the interdigital characteristic can be formed.
JP21203187A 1987-08-26 1987-08-26 Interdigital filter Pending JPS6454916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21203187A JPS6454916A (en) 1987-08-26 1987-08-26 Interdigital filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21203187A JPS6454916A (en) 1987-08-26 1987-08-26 Interdigital filter

Publications (1)

Publication Number Publication Date
JPS6454916A true JPS6454916A (en) 1989-03-02

Family

ID=16615722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21203187A Pending JPS6454916A (en) 1987-08-26 1987-08-26 Interdigital filter

Country Status (1)

Country Link
JP (1) JPS6454916A (en)

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