JPH039502U

JPH039502U -

Info

Publication number: JPH039502U
Application number: JP6853189U
Authority: JP
Priority date: 1989-06-12
Filing date: 1989-06-12
Publication date: 1991-01-29

Description

[Brief explanation of drawings]

第１図ないし第３図は本願第１項の考案の一実
施例によるトリプレート型ストリツプラインフイ
ルタを説明するための図であり、第１図はその分
解斜視図、第２図はその底面図、第３図は第２図
の−線断面図、第４図は本願第２項の考案の
一実施例を説明するための分解斜視図、第５図ａ
及び第５図ｂはそれぞれ従来のトリプレート型ス
トリツプラインフイルタを示す平面図、分解斜視
図である。図において、１はトリプレート型ストリツプラ
インフイルタ、２は誘電体基板、３はアース電極
、４は共振電極、４ａ，４ｂは初段及び最終段の
共振電極、６は入、出力電極、７はスルーホール
電極、１０はストリツプラインフイルタ、１１は
セラミツクス基板である。 1 to 3 are diagrams for explaining a triplate type stripline filter according to an embodiment of the invention of item 1 of the present application, FIG. 1 is an exploded perspective view thereof, and FIG. 2 is a bottom view thereof. Figure 3 is a cross-sectional view taken along the - line in Figure 2, Figure 4 is an exploded perspective view for explaining an embodiment of the invention of Section 2 of the present application, and Figure 5a.
and FIG. 5b are a plan view and an exploded perspective view, respectively, showing a conventional triplate type stripline filter. In the figure, 1 is a triplate type stripline filter, 2 is a dielectric substrate, 3 is a ground electrode, 4 is a resonant electrode, 4a and 4b are first and final stage resonant electrodes, 6 is an input and output electrode, and 7 is a Through-hole electrodes, 10 are stripline filters, and 11 are ceramic substrates.

Claims

[Claims for Utility Model Registration] (1) A ground electrode is formed on one main surface of a dielectric substrate, a plurality of resonant electrodes are formed at predetermined intervals on the other main surface, and In a stripline filter in which an electrode enters and an output part is formed, through-hole electrodes are formed in the first-stage and final-stage resonant electrode portions of the dielectric substrate, and the through-hole electrodes are formed in the first-stage and final-stage resonant electrode portions of the dielectric substrate, and A gap is provided between the hole electrode and the ground electrode to form input and output electrodes, and the input and output electrodes are connected to the first and final stage resonance electrodes by the through-hole electrode, and the dielectric A stripline filter characterized in that input and output electrodes of a body board are connected to circuit wiring on a printed circuit board. (2) A ground electrode is formed on one main surface of the dielectric substrate, and a plurality of resonant electrodes are formed at predetermined intervals on the other main surface, and the resonant electrodes enter the first and final stages to form an output section. In the stripline filter, one main surface of a ceramic substrate made of a low dielectric constant is brought into opposing contact with the other main surface side of the dielectric substrate, and the resonant electrodes of the first and final stages of the ceramic substrate are faced. A through-hole electrode is formed in the ceramic substrate, and an output electrode is formed by entering the periphery of the through-hole electrode on the other main surface of the ceramic substrate, and the input and output electrodes and the first-stage and final-stage resonance electrodes are connected through the through-hole electrode. Connected by hole electrode,
A stripline filter characterized in that the input and output electrodes of the ceramic substrate are connected to circuit wiring on a printed circuit board.