JPS6137623U - Piezoelectric resonator with built-in capacitance - Google Patents

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案一実施例の正面図、第２図は同じく裏面
図、第３図は同じく等価回路図。 １は圧電セラミック基板、１ａは一辺、２と３は振動電
極、２ａと２ｂは分割電極、４と５はホット側端子電極
、６はアース端子電極。FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a back view, and FIG. 3 is an equivalent circuit diagram. 1 is a piezoelectric ceramic substrate, 1a is one side, 2 and 3 are vibrating electrodes, 2a and 2b are split electrodes, 4 and 5 are hot side terminal electrodes, and 6 is a ground terminal electrode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 圧電基板の対向主面に一対の振動電極を設けるとともに
一方の振動電極を分割電極としたエネルギーとじこめ型
圧電共振素子部分と、圧電基板の任意の一辺の両端に設
けられた分割電極の各々に導通する二つのホット側端子
電極と、この端子電極が設けられた圧電基板面の反対面
側において前記一辺の中間に設けられたアース端子電極
とを有し、分割電極同士は結合状態にあるとともにこれ
と対となる振動電極は独立していて斜対称モード振動を
励振し、アース端子電極ふ二つのホット側端子電極間に
それぞれ静電容量を生じさせた、静電容量内蔵型圧電共
振子。A pair of vibrating electrodes are provided on the opposing main surfaces of the piezoelectric substrate, and one vibrating electrode is used as a divided electrode to conduct the energy-containing piezoelectric resonant element portion and the divided electrodes provided at both ends of any one side of the piezoelectric substrate. and a ground terminal electrode provided in the middle of one side on the opposite side of the piezoelectric substrate surface on which these terminal electrodes are provided, and the divided electrodes are in a coupled state and this This is a piezoelectric resonator with a built-in capacitance, in which the vibrating electrodes paired with the two are independent and excite obliquely symmetrical mode vibrations, creating capacitance between the ground terminal electrode and the two hot-side terminal electrodes.