JPH01126705U

JPH01126705U -

Info

Publication number: JPH01126705U
Application number: JP2290488U
Authority: JP
Priority date: 1988-02-22
Filing date: 1988-02-22
Publication date: 1989-08-30

Description

[Brief explanation of the drawing]

第１図は本考案に係る誘電体フイルタの一実施
例を示す斜視図、第２図は誘電体フイルタの形状
とそれにより発生するスプリアスモードを示す説
明図、第３図Ａ，Ｂ，Ｃはそれぞれ本考案に係る
誘電体フイルタの一例を示す正面図である。１０……誘電体ブロツク、１２……共振子穴、
１４……結合子穴、１６……メタライズ層、２０
……段部、２２……溝部。 FIG. 1 is a perspective view showing an embodiment of the dielectric filter according to the present invention, FIG. 2 is an explanatory diagram showing the shape of the dielectric filter and spurious modes generated thereby, and FIGS. 3A, B, and C are FIG. 3 is a front view showing an example of a dielectric filter according to the present invention. 10...Dielectric block, 12...Resonator hole,
14... Connector hole, 16... Metallized layer, 20
...Step part, 22...Groove part.

Claims

[Claims for Utility Model Registration] 1. A dielectric block having a substantially rectangular parallelepiped shape has a plurality of resonator holes arranged in the longitudinal direction, and one of the surfaces of the dielectric block where the resonator holes are open is an open surface. , in an integrated dielectric filter in which a metallized layer is formed on the outer surface other than the open surface and the inner surface of the resonator hole, with the other being a short-circuit surface, step portions are formed in the longitudinal direction on both sides of the open surface of the dielectric block. A dielectric filter characterized in that grooves extending in the longitudinal direction are formed at positions approximately ⅓ of the height of the dielectric block from the open surfaces on both sides of the dielectric block. 2. The dielectric filter according to claim 1, wherein instead of the stepped portion, inclined surfaces are formed in the longitudinal direction on both sides of the open surface of the dielectric block.