JPH0471023U

JPH0471023U -

Info

Publication number: JPH0471023U
Application number: JP11525590U
Authority: JP
Priority date: 1990-11-01
Filing date: 1990-11-01
Publication date: 1992-06-23

Description

[Brief explanation of the drawing]

第１図は本考案による誘電体多段フイルタの一
実施例を示す分解斜視図、第２図は第１図のフイ
ルタの等価回路図、第３図は第１図における共振
子ユニツトの変形例を示す斜視図、第４図ないし
第１１図はそれぞれ第１図における誘電体板の異
なる変形例を示す平面図、第１２図は誘電体板の
さらに異なる変形例を示す側面図、第１３図は第
１図のものとは異なる入出力端子導出のための構
成例を示す斜視図、第１４図ないし第１７図はそ
れぞれ第１図における接続金具の異なる構成例を
示す斜視図、第１８図は従来の誘電体多段フイル
タの分解斜視図である。１２……共振子ユニツト、１３……オープン面
、１４……シヨート面、１５……共振子穴、２０
……誘電体板、２１……貫通孔、２２……入出力
端子、２３……端子リード、２５，２５１〜２５
４……接続金具、３７……端子ピン。 FIG. 1 is an exploded perspective view showing an embodiment of the dielectric multistage filter according to the present invention, FIG. 2 is an equivalent circuit diagram of the filter in FIG. 1, and FIG. 3 is a modification of the resonator unit in FIG. 1. 4 to 11 are respectively plan views showing different modifications of the dielectric plate in FIG. 1, FIG. 12 is a side view showing still another modification of the dielectric plate, and FIG. FIG. 14 is a perspective view showing an example of a configuration for deriving input/output terminals that is different from that shown in FIG. FIG. 2 is an exploded perspective view of a conventional dielectric multi-stage filter. 12... Resonator unit, 13... Open surface, 14... Short surface, 15... Resonator hole, 20
... Dielectric plate, 21 ... Through hole, 22 ... Input/output terminal, 23 ... Terminal lead, 25,251-25
4... Connection fittings, 37... Terminal pins.

Claims

[Claims for Utility Model Registration] 1. Resonator holes passing through a dielectric block from the open surface to the shot surface are arranged in parallel at a predetermined interval, and the inner surface of the resonator hole and the dielectric block are arranged in parallel at predetermined intervals. a resonator unit that constitutes a plurality of unit resonators with the resonator hole at the center by forming dielectric layers that are electrically conductive to each other on the four side surfaces and the shot surface; and a resonator unit that is placed on the resonator unit. , a dielectric plate having through holes corresponding to the resonator holes of each of the unit resonators, and a conductive layer formed on the inner surface of these through holes; and the through holes of the dielectric plate and the resonators of the resonator unit. A dielectric multi-stage filter, comprising: a connecting fitting inserted into the hole and electrically connecting a dielectric layer on the inner surface of the through hole and a conductive layer on the inner surface of the resonator hole. 2. The dielectric multi-stage filter according to claim 1, further comprising means for adjusting coupling capacitance between the through holes on the dielectric plate.