JPH0453301U

JPH0453301U -

Info

Publication number: JPH0453301U
Application number: JP9564890U
Authority: JP
Priority date: 1990-09-11
Filing date: 1990-09-11
Publication date: 1992-05-07
Anticipated expiration: 2005-09-11
Also published as: JP2534049Y2

Description

[Brief explanation of the drawing]

第１図及び第２図は本考案の一実施例による誘
電体フイルタを説明するための図であり、第１図
はその一部断面正面図、第２図はそのスペーサを
示す斜視図、第３図は入、出力端子の変形例を示
す正面図、第４図ａは他の変形例を示す正面図、
第４図ｂはその側面図、第５図ないし第７図は一
般的な誘電体フイルタを示す図であり、第５図は
その分解斜視図、第６図はその一部断面正面図、
第７図はその等価回路図、第８図は従来の誘電体
フイルタの問題点を説明するための正面図、第９
図ａ及び第９図ｂはそれぞれ誘電体基板の平面図
、底面図、第１０図ａ及び第１０図ｂはそれぞれ
従来の入、出力端子の接続部を示す正面図、底面
図である。図において、１は誘電体フイルタ、２は誘電体
同軸共振器、３ａはケース板（アース用ケース）
、７は誘電体基板（結合用基板）、８ａ〜８ｄは
コンデンサ電極（結合電極）、９ａ，９ｂは接続
用電極、１０は入、出力端子、２０はスペーサで
ある。 1 and 2 are diagrams for explaining a dielectric filter according to an embodiment of the present invention, in which FIG. 1 is a partially sectional front view thereof, FIG. 2 is a perspective view showing a spacer thereof, and FIG. 3 is a front view showing a modified example of input and output terminals, FIG. 4 a is a front view showing another modified example,
Fig. 4b is a side view thereof, Figs. 5 to 7 are diagrams showing a general dielectric filter, Fig. 5 is an exploded perspective view thereof, Fig. 6 is a partially sectional front view thereof,
Fig. 7 is its equivalent circuit diagram, Fig. 8 is a front view for explaining the problems of the conventional dielectric filter, and Fig. 9 is the equivalent circuit diagram.
Figures a and 9b are a plan view and a bottom view of a dielectric substrate, respectively, and Figures 10a and 10b are a front view and a bottom view, respectively, showing a conventional input and output terminal connection section. In the figure, 1 is a dielectric filter, 2 is a dielectric coaxial resonator, and 3a is a case plate (earth case).
, 7 is a dielectric substrate (coupling substrate), 8a to 8d are capacitor electrodes (coupling electrodes), 9a and 9b are connection electrodes, 10 is an input and output terminal, and 20 is a spacer.

Claims

[Scope of utility model registration request]

A plurality of resonators are arranged on a grounding case, and a coupling board is arranged with a gap between the resonators and the grounding case, and each capacitive coupling board formed on one main surface of the coupling board is arranged. In a dielectric filter in which each of the resonators is connected to an electrode, a connecting electrode formed on the other main surface of the coupling substrate is connected, and one end of an output terminal is connected, the earthing case and the coupling substrate are connected to each other. By interposing an insulating spacer with approximately the same length as the substrate, the bonding substrate is fixed to the grounding case via the spacer, and the spacer and the bonding substrate are connected to the grounding case. A dielectric filter characterized by having input and output terminals sandwiched between them.