JPH0390112U

JPH0390112U -

Info

Publication number: JPH0390112U
Application number: JP15100389U
Authority: JP
Priority date: 1989-12-29
Filing date: 1989-12-29
Publication date: 1991-09-13

Description

[Brief explanation of drawings]

第１図はこの考案の誘電体共振器を用いた局部
発振器の構造を採用した局部発振器の全体斜視図
、第２図はこの考案の誘電体共振器を用いた局部
発振器の構造を採用した局部発振器の共振回路部
、第３図は従来の誘電体共振器を用いた局部発振
器の全体斜視図である。第４図は従来の誘電体共
振器を用いた局部発振器の共振回路部を示す。１……誘電体共振器、２……金属板、３……周
波数調整用金属板、４……局部発振器プリント基
板、５……発振回路、６……増幅回路、７……金
属プレート板、８……結合用アキシヤルコンデン
サ、９，１０……周波数調整用被覆導線、１１…
…結合用チツプコンデンサ、１２……本体プリン
ト基板、１３……誘電体共振器の端子ピン、１４
ａ，１４ｂ，１４ｃ，１４ｄ……本体プリント基
板に設けられたスルーホール。 Figure 1 is an overall perspective view of a local oscillator that employs the structure of a local oscillator using a dielectric resonator of this invention, and Figure 2 is an overall perspective view of a local oscillator that adopts the structure of a local oscillator that uses a dielectric resonator of this invention. FIG. 3 is an overall perspective view of a local oscillator using a conventional dielectric resonator. FIG. 4 shows a resonant circuit section of a local oscillator using a conventional dielectric resonator. DESCRIPTION OF SYMBOLS 1... Dielectric resonator, 2... Metal plate, 3... Metal plate for frequency adjustment, 4... Local oscillator printed circuit board, 5... Oscillation circuit, 6... Amplification circuit, 7... Metal plate, 8... Axial capacitor for coupling, 9, 10... Covered conductor for frequency adjustment, 11...
...Coupling chip capacitor, 12... Main body printed circuit board, 13... Terminal pin of dielectric resonator, 14
a, 14b, 14c, 14d...Through holes provided on the main body printed circuit board.

Claims

[Claims for Utility Model Registration] 1. In the structure of a local oscillator including a resonant circuit using an oscillation circuit, an amplification circuit and a dielectric resonator, a printed circuit board on which the oscillation circuit and amplification circuit are mounted, and a resonant circuit mounted on a single metal sheet. A structure of a local oscillator using a dielectric resonator, which is built into a plate and has an oscillation circuit and a resonant circuit coupled in the air using a jumper wire or an electronic component with leads. 2. In the structure of a resonant circuit of a local oscillator using a dielectric resonator, a metal plate is attached to the terminal pin of the dielectric resonator, and another metal plate with one end grounded is provided at a position facing the metal plate. Structure of a local oscillator using a characteristic dielectric resonator.