JPS648711A - Integrally sintered type ladder filter - Google Patents

Integrally sintered type ladder filter

Info

Publication number
JPS648711A
JPS648711A JP16421687A JP16421687A JPS648711A JP S648711 A JPS648711 A JP S648711A JP 16421687 A JP16421687 A JP 16421687A JP 16421687 A JP16421687 A JP 16421687A JP S648711 A JPS648711 A JP S648711A
Authority
JP
Japan
Prior art keywords
electrode
resonator
ladder filter
parallel
lead
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
JP16421687A
Other languages
Japanese (ja)
Inventor
Toshihiko Kikko
Akira Ando
Yukio Sakabe
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing 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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP16421687A priority Critical patent/JPS648711A/en
Publication of JPS648711A publication Critical patent/JPS648711A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE:To make the size of a ladder filter small without deteriorating the performance by arranging each electrode of series and parallel resonators in a piezoelectric ceramic substance sintered integrally. CONSTITUTION:A series resonator electrode 2 and parallel resonator electrode 3 are arranged concentrically to the middle of the piezoelectric ceramic substance 1 of the integrally sintered type ladder filter at an interval in a broadwise direction. Moreover, the ceramic 1 is formed nearly to be a rectangular prism shaped and external electrodes 4, 5 with silver paste applied to a couple of parallel side walls are arranged. The resonator electrode 2 is connected to the electrode 4 by a lead 6 and the other resonator electrode 2 is connected to the electrode 5 by a lead 7. Furthermore, the electrode 5 is connected to the resonator electrode 3 by a lead 8 and the earth side external electrode 9 is connected to the other of the resonator electrodes 3. Then the series resonator 10 and the parallel resonator 11 are formed corresponding to the cavities 1, 2.
JP16421687A 1987-07-01 1987-07-01 Integrally sintered type ladder filter Pending JPS648711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16421687A JPS648711A (en) 1987-07-01 1987-07-01 Integrally sintered type ladder filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16421687A JPS648711A (en) 1987-07-01 1987-07-01 Integrally sintered type ladder filter

Publications (1)

Publication Number Publication Date
JPS648711A true JPS648711A (en) 1989-01-12

Family

ID=15788873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16421687A Pending JPS648711A (en) 1987-07-01 1987-07-01 Integrally sintered type ladder filter

Country Status (1)

Country Link
JP (1) JPS648711A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0389708A (en) * 1989-09-01 1991-04-15 Murata Mfg Co Ltd Piezoelectric resonator
JPH03265210A (en) * 1990-03-14 1991-11-26 Murata Mfg Co Ltd Piezoelectric resonator component and its manufacture
JPH0477013A (en) * 1990-07-16 1992-03-11 Murata Mfg Co Ltd Chip type piezoelectric resonator component
WO1992016997A1 (en) * 1991-03-13 1992-10-01 Murata Manufacturing Co., Ltd. Ladder type filter
US5394123A (en) * 1991-03-13 1995-02-28 Murata Manufacturing Co., Ltd. Ladder type filter comprised of stacked tuning fork type resonators

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0389708A (en) * 1989-09-01 1991-04-15 Murata Mfg Co Ltd Piezoelectric resonator
JPH03265210A (en) * 1990-03-14 1991-11-26 Murata Mfg Co Ltd Piezoelectric resonator component and its manufacture
JPH0477013A (en) * 1990-07-16 1992-03-11 Murata Mfg Co Ltd Chip type piezoelectric resonator component
WO1992016997A1 (en) * 1991-03-13 1992-10-01 Murata Manufacturing Co., Ltd. Ladder type filter
US5394123A (en) * 1991-03-13 1995-02-28 Murata Manufacturing Co., Ltd. Ladder type filter comprised of stacked tuning fork type resonators

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