JPS60136534U

JPS60136534U - piezoelectric filter

Info

Publication number: JPS60136534U
Application number: JP2354584U
Authority: JP
Inventors: 宏幸高橋
Original assignee: 株式会社村田製作所
Priority date: 1984-02-20
Filing date: 1984-02-20
Publication date: 1985-09-10

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は、ＴＳモードの圧電フィルタの一例を示す斜視
図である。第２図は、第１図の線■−Ｈに沿った断面図
である。第３図は、この考案の一実施例の分解斜視図で
ある。第４図は、この考案の一実施例の斜視図である。第５図は、第４図の線■−■に沿った断面図である。図において、１．５０は圧電フィルタ、２，３はフィル
タエレメント、４．１１は絶縁接着剤、７．８は振動領
域、１０は絶縁板、２１は圧電セラミック基板、２２．
３２は入力電極、２３，３３は出力電極、２４．３４は
共通電極を示す。FIG. 1 is a perspective view showing an example of a TS mode piezoelectric filter. FIG. 2 is a sectional view taken along the line --H in FIG. 1. FIG. 3 is an exploded perspective view of one embodiment of this invention. FIG. 4 is a perspective view of an embodiment of this invention. FIG. 5 is a sectional view taken along the line ■-■ in FIG. 4. In the figure, 1.50 is a piezoelectric filter, 2 and 3 are filter elements, 4.11 is an insulating adhesive, 7.8 is a vibration area, 10 is an insulating plate, 21 is a piezoelectric ceramic substrate, 22.
32 is an input electrode, 23 and 33 are output electrodes, and 24 and 34 are common electrodes.

Claims

[Claims for Utility Model Registration] A plurality of filter elements each having an input electrode and an output electrode formed on one main surface of a piezoelectric substrate and a common electrode formed on the other main surface are stacked and combined with respect to the main surface thereof. In the piezoelectric filter configured, an insulating plate is inserted between the combined filter elements,
A piezoelectric filter, characterized in that a non-vibrating region of the filter element and the insulating plate are bonded with an adhesive.