JPS63111002U

JPS63111002U -

Info

Publication number: JPS63111002U
Application number: JP227587U
Authority: JP
Priority date: 1987-01-09
Filing date: 1987-01-09
Publication date: 1988-07-16

Description

[Brief explanation of the drawing]

第１図は、この考案の一実施例を示す断面図、
第２図は従来の誘電体フイルタ装置の一例を示す
断面図、第３図はこの考案のなす契機となつた未
だ公知でない誘電体フイルタ装置を示す斜視図、
第４図は第１図実施例の誘電体フイルタ装置の斜
視図であり、第５図は第１図実施例に用いる誘電
体フイルタを説明するための断面図、第６図およ
び第７図は基板および引出端子を説明するための
各斜視図、第８図は第１図実施例の減衰特性を示
す図である。図において、２０は誘電体フイルタ、２１はケ
ース、２２は誘電体ブロツク、２３，２４は貫通
孔、２５，２６は内導体、２７は外導体、３１，
３２は入出力ピン、３５はケースの誘電体ブロツ
クの電圧開放端面に対向する側面部、４０は基板
、４１，４２は孔、４３，４４は引出端子、４７
，４８はアース電極を示す。 FIG. 1 is a sectional view showing an embodiment of this invention;
FIG. 2 is a cross-sectional view showing an example of a conventional dielectric filter device, and FIG. 3 is a perspective view showing an as-yet-unknown dielectric filter device that led to this invention.
4 is a perspective view of the dielectric filter device of the embodiment shown in FIG. 1, FIG. 5 is a sectional view for explaining the dielectric filter used in the embodiment shown in FIG. 1, and FIGS. 6 and 7 are Each perspective view for explaining the board and the lead-out terminal, and FIG. 8 are diagrams showing the attenuation characteristics of the embodiment of FIG. 1. In the figure, 20 is a dielectric filter, 21 is a case, 22 is a dielectric block, 23 and 24 are through holes, 25 and 26 are inner conductors, 27 is an outer conductor, 31,
32 is an input/output pin, 35 is a side surface facing the voltage open end of the dielectric block of the case, 40 is a board, 41 and 42 are holes, 43 and 44 are lead-out terminals, and 47
, 48 indicates a ground electrode.

Claims

[Claims for Utility Model Registration] (1) A dielectric block in which a plurality of through holes are formed in parallel to each other, an inner conductor formed on the inner peripheral surface of the through holes, and an inner conductor formed on the outer peripheral surface of the dielectric block. and an outer conductor that cooperates with each of the inner conductors to constitute a plurality of coaxial resonant units, one or more filter sections are constituted by the unit number of coaxial resonant units, and the dielectric block a dielectric filter having an input/output pin that is attached to the dielectric block and drawn out from the voltage open end surface side; and a case made of a conductive material that is attached to cover at least the voltage open end surface of the dielectric block. , a substrate disposed between the case and the voltage open end surface of the dielectric block and having a hole through which the input/output pin is inserted; A dielectric filter device, further comprising a lead-out terminal that is drawn out substantially parallel to the voltage-open end face of the block and electrically connected to the input/output pin. (2) The dielectric filter according to claim 1, wherein a ground electrode is formed on at least one surface of the substrate so as not to be electrically connected to the input/output pins and the extraction terminals. Device. (3) The dielectric filter device according to claim 2, wherein ground electrodes are formed on both sides of the substrate. (4) The dielectric filter according to claim 3, wherein a through hole is formed in the substrate, and ground electrodes on both sides are electrically connected to each other via the through hole. Device.