JPH0165504U

JPH0165504U -

Info

Publication number: JPH0165504U
Application number: JP1987161173U
Authority: JP
Priority date: 1987-10-20
Filing date: 1987-10-20
Publication date: 1989-04-26

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に係わる誘電体フイル
タを示す断面図、第２図は第１図の誘電体ブロツ
クに導体膜を設けた状態を示す斜視図、第３図は
第１図の誘電体フイルタのリード端子を装着する
前の状態を示す一部切欠断面図、第４図はリード
端子を示す正面図、第５図は第１図の誘電体フイ
ルタの等価回路図、第６図はリード端子の変形例
を示す一部切欠正面図、第７図は従来の誘電体フ
イルタの断面図である。１……誘電体ブロツク、２，３……貫通孔、４
，５……内導体膜、６……外導体膜、８……端面
導体膜、１６……解放端面、１７，１８……一方
のコンデンサ電極、１９，２０……誘電体膜、２
１，２２……他方のコンデンサ電極、２３，２４
……結合コンデンサ、２５，２６……リード端子
、２７，２８……半田。 FIG. 1 is a sectional view showing a dielectric filter according to an embodiment of the present invention, FIG. 2 is a perspective view showing a state in which a conductive film is provided on the dielectric block of FIG. 1, and FIG. FIG. 4 is a partially cutaway sectional view showing the dielectric filter in a state before the lead terminals are attached, FIG. 4 is a front view showing the lead terminals, FIG. 5 is an equivalent circuit diagram of the dielectric filter in FIG. 1, and FIG. 6 7 is a partially cutaway front view showing a modified example of the lead terminal, and FIG. 7 is a sectional view of a conventional dielectric filter. 1... Dielectric block, 2, 3... Through hole, 4
, 5... Inner conductor film, 6... Outer conductor film, 8... End surface conductor film, 16... Open end surface, 17, 18... One capacitor electrode, 19, 20... Dielectric film, 2
1, 22...Other capacitor electrode, 23, 24
...Coupling capacitor, 25, 26... Lead terminal, 27, 28... Solder.

Claims

[Claims for Utility Model Registration] A dielectric block 1 having one or more resonance through holes 2 and 3, inner conductor films 4 and 5 provided on the walls of the through holes 2 and 3, and the dielectric block 1 having one or more resonance through holes 2 and 3; an outer conductor film 6 provided on the outer peripheral side surface of the body block 1; and an inner conductor film provided in the vicinity of the through holes 2 and 3 on the other end surface 16 of the dielectric block 1 opposite to the one end surface 7; one of the film capacitor electrodes 17 and 18 connected to the films 4 and 5; dielectric films 19 and 20 provided on the one of the film capacitor electrodes 17 and 18; and the dielectric film 19. , 20, and lead terminals 25, 26 connected to the other film capacitor electrodes 21, 22. .