JPS63181002U

JPS63181002U -

Info

Publication number: JPS63181002U
Application number: JP7270587U
Authority: JP
Priority date: 1987-05-14
Filing date: 1987-05-14
Publication date: 1988-11-22

Description

[Brief explanation of drawings]

第１図は本考案の一実施例による一体成形型誘
電体フイルタを説明するための斜視図、第２図は
その縦断面図、第３図ａは上記実施例の変形例を
示す斜視図、第３図ｂはその実装時の斜視図、第
４図は他の変形例を示す斜視図、第５図ないし第
８図は従来の一体成形型誘電体フイルタを説明す
るための図で、第５図ａはその縦断面図、第５図
ｂはその平面図、第６図はその樹脂ピンによる外
部との結合状態を示す一部断面図、第７図はその
結合用電極膜を形成した場合を示す斜視図、第８
図はその周波数と減衰量との関係を示す特性図で
ある。図において、１は一体成形型誘電体フイルタ、
２は誘電体ブロツク、２ａは開放端、２ｃ，２ｄ
は誘電体ブロツクの両側面、３は貫通孔、４，５
は内、外導電膜、７は共振器、１５ａ，１５ｂは
入、出力電極膜である。 FIG. 1 is a perspective view for explaining an integrally molded dielectric filter according to an embodiment of the present invention, FIG. 2 is a vertical sectional view thereof, and FIG. 3a is a perspective view showing a modification of the above embodiment. FIG. 3b is a perspective view when it is mounted, FIG. 4 is a perspective view showing another modification, and FIGS. 5 to 8 are diagrams for explaining a conventional integrally molded dielectric filter. Figure 5a is a longitudinal cross-sectional view, Figure 5b is a plan view, Figure 6 is a partial cross-sectional view showing how the resin pin is connected to the outside, and Figure 7 shows the formation of the connecting electrode film. Perspective view showing the case, No. 8
The figure is a characteristic diagram showing the relationship between the frequency and the amount of attenuation. In the figure, 1 is an integrally molded dielectric filter;
2 is a dielectric block, 2a is an open end, 2c, 2d
are both sides of the dielectric block, 3 is a through hole, 4, 5
1 is an inner and an outer conductive film, 7 is a resonator, and 15a and 15b are input and output electrode films.

Claims

[Scope of utility model registration request]

At least two through holes are formed in parallel in the dielectric block, an inner conductive film is formed on the inner surface of the through hole, and an outer conductive film is formed on the outer surface of the dielectric block excluding at least the side surface on the open end side. In an integrally molded dielectric filter in which at least a pair of resonators are configured and the resonators are coupled to each other, a portion near the open end of both side surfaces perpendicular to a line connecting the through holes of the dielectric block is provided. An integrally molded dielectric filter characterized in that input and output electrode films are formed separately from the outer conductive film on the side surface.