JPH0356205U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing the first embodiment of the present invention, FIG. 2 is a top view and bottom view of the board in FIG. 1, and FIG. 3 is an equivalent circuit diagram of the embodiment in FIG. 1.
4 is a characteristic diagram showing the frequency characteristics of the embodiment shown in FIG. 1, FIG. 5 is an exploded perspective view showing the second embodiment of the present invention, and FIG. 6 is a front view of the substrate in FIG. 7 is an equivalent circuit diagram of the embodiment of FIG. 5, FIG. 8 is a characteristic diagram showing the frequency characteristics of the embodiment of FIG. 5, and FIG. 9 is a diagram of the third embodiment of the present invention. A top view and a bottom view of the board, Fig. 10 is an equivalent circuit diagram of a dielectric filter using the board shown in Fig. 9, and Fig. 11 is a characteristic line showing the frequency characteristics of the dielectric filter using the board shown in Fig. 9. 12 is a plan view and a bottom view of a substrate according to the fourth embodiment of the present invention, FIG. 13 is an equivalent circuit diagram of a dielectric filter using the substrate of FIG. 12, and FIG. 15 is a top view and a bottom view of the substrate in the fifth embodiment of the present invention, and FIG. 16 is a characteristic diagram showing the frequency characteristics of a dielectric filter using the substrate of FIG. 15. Equivalent circuit diagram of dielectric filter, 1st
7 is a characteristic diagram showing the frequency characteristics of a dielectric filter using the substrate of FIG. 15, FIG. 18 is a plan view and bottom view of the substrate in the sixth embodiment of the present invention, and FIG. FIG. 20 is an equivalent circuit diagram of a dielectric filter using the substrate shown in the figure, and FIG. 20 is a characteristic diagram showing the frequency characteristics of the dielectric filter using the substrate shown in FIG. 2-4...Dielectric resonator, 5-7...Resonator hole, 8
...open surface, 9...short circuit surface, 10, 50, 60, 80
...Substrate, 11-13, 61-64, 81-85...
Through hole, 21-23, 41-43...conductor pin, 3
1-37, 40, 51-58, 65-75, 86
~97...Conductive layer.

Claims (1)

[Claims for Utility Model Registration] A resonator hole is formed in a dielectric block, penetrating from one end surface to the other end surface, the one end surface is formed with a conductive layer and serves as a short-circuit surface, and the other end surface is formed with no conductive layer. A dielectric filter in which a plurality of dielectric resonators are arranged in parallel, each having an open surface and a conductive layer formed on each side surface and the inner surface of the resonator hole to be electrically connected to each other via the short-circuit surface. a first conductive pattern disposed on the open surface so as to straddle the dielectric resonators and for capacitively coupling adjacent dielectric resonators; a dielectric resonator located at both input and output ends; a substrate on which a second conductive pattern for input/output coupling for guiding the signal to an external circuit, and a third conductive pattern for forming a parallel circuit for polarization between arbitrary dielectric resonators; , a conductive pattern provided for each dielectric resonator, one end of which is inserted into the resonator hole of the dielectric resonator and conductively connected to the conductive layer on the inner surface of the resonator hole, and the other end of which is formed on the substrate. A polarized dielectric filter comprising: a conductor pin that selectively contacts the polar dielectric filter.