JPS588219U - Ladder-shaped ceramic filter - 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図は従来の短冊素子を使った梯子形セラミックフィ
ルタの断面図、第２図は同第１図のＡ−Ａ′線の断面図
、第３図は梯子形セラミックフィルタにおける短冊素子
の斜視図、第４図は梯子形セラミックフィルタの配線図
、第５図は本考案の一実施例の梯子形セラミックフィル
タの断面図、第６図は同第５図のＡ−Ａ’線の断面図、
第７図は本考案のその他の実施例の梯子形セラミックフ
ィルタの断面図、第８図は同第７図のＡ−Ａ’線の断面
図である。 １．２・・・短冊形圧電磁器共振子、３・・・電極、４
、・・・絶縁板、９．１０・・・ケース、９’、１０’
・・・突起。Figure 1 is a sectional view of a conventional ladder-shaped ceramic filter using strip elements, Figure 2 is a sectional view taken along line A-A' in Figure 1, and Figure 3 is a perspective view of the strip elements in the ladder-shaped ceramic filter. Figure 4 is a wiring diagram of a ladder-shaped ceramic filter, Figure 5 is a sectional view of a ladder-shaped ceramic filter according to an embodiment of the present invention, and Figure 6 is a sectional view taken along line A-A' in Figure 5. ,
FIG. 7 is a sectional view of a ladder-shaped ceramic filter according to another embodiment of the present invention, and FIG. 8 is a sectional view taken along line AA' in FIG. 7. 1.2... Rectangular piezoelectric ceramic resonator, 3... Electrode, 4
,...Insulating plate, 9.10...Case, 9', 10'
···protrusion.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 長さ方向の振動を利用した短冊形圧電磁器共振子とそれ
を挾持する突起を有する電極板と適宜９箇所に配置させ
た絶縁板をケース内に収納した梯子形セラミックフィル
タにおいて、前記ケースの内側底面に最低１つ以上の凸
部を設けたことを特徴とする梯子形セラミックフィルタ
。In a ladder-shaped ceramic filter in which a rectangular piezoelectric ceramic resonator that utilizes vibration in the longitudinal direction, an electrode plate having protrusions that hold the resonator, and insulating plates appropriately arranged at nine locations are housed in a case, the inner side of the case is A ladder-shaped ceramic filter characterized by having at least one convex portion on the bottom surface.