JPS6025203U

JPS6025203U - dielectric filter

Info

Publication number: JPS6025203U
Application number: JP11679283U
Authority: JP
Inventors: 光平和田; 孝岩田
Original assignee: ティーディーケイ株式会社
Priority date: 1983-07-27
Filing date: 1983-07-27
Publication date: 1985-02-20

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

[Brief explanation of the drawing]

第１図は従来の誘電体フィルタの正面部分断面図、第２
図は同じく部分欠損平面図、第３図は同じくその電気的
等価回路図、第４図は本考案に係る誘電体フィルタの正
面部分断面図、第５図は同じくその電気的等価回路図、
第６図は一つの誘電体共振器とこれに結合さ杆た可変コ
ンデンサとの電気的等価回路図、第７図は本考案に係る
誘電体フィルタの周波数選択調整作用を示す周波数特性
図である。１・・・・・・金属容器、１０１・・曲直面板、１０２
・・・・・・上面板、２・・・・・・誘電体共振器、２
０１・曲・基体、２０２・・・・・・中心電極、２０３
・・・・・・外周電極、４・・・・・・固定コンデンサ
、６・・・・・・可動電極。Figure 1 is a front partial sectional view of a conventional dielectric filter;
3 is a partially cutaway plan view, FIG. 3 is an electrical equivalent circuit diagram, FIG. 4 is a front partial sectional view of the dielectric filter according to the present invention, and FIG. 5 is an electrical equivalent circuit diagram,
FIG. 6 is an electrical equivalent circuit diagram of one dielectric resonator and a variable capacitor coupled thereto, and FIG. 7 is a frequency characteristic diagram showing the frequency selection adjustment effect of the dielectric filter according to the present invention. . 1...Metal container, 101...Curved surface plate, 102
...Top plate, 2...Dielectric resonator, 2
01・Curve・Base, 202... Center electrode, 203
......Outer electrode, 4...Fixed capacitor, 6...Movable electrode.

Claims

[Scope of utility model registration request]

(1) A plurality of dielectric resonators each having electrodes adhered to the outer and inner surfaces (excluding the top surface) are erected in the axial direction on the bottom plate of a metal container and arranged at predetermined intervals. In the electric filter configured, a movable member is provided on a top plate of the metal container opposite to the bottom plate, and faces a center electrode integrally formed with the inner peripheral electrode of the dielectric resonator through a gap. electrode'
A dielectric filter comprising: a variable capacitor formed by the air gap between the movable electrode and the center electrode.

(2) The dielectric filter according to claim 1, wherein the dielectric resonator has the center electrodes coupled to each other by a capacitor.