JPS6067646U

JPS6067646U - magnetron

Info

Publication number: JPS6067646U
Application number: JP16021483U
Authority: JP
Inventors: 干川　萬三郎
Original assignee: 日本電気株式会社
Priority date: 1983-10-17
Filing date: 1983-10-17
Publication date: 1985-05-14

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図はこの考案を説明するために用いる従来型マグネ
トロンを示す断面図、第２図はマグネトロンに使用され
る陽極例（橘型）の平面図、第３図は従来型周波数調整
方法によるマグネトロンを示す断面図、第４図は本考案
によるマグネトロンの実施例を示す断面図、第５図は本
考案の磁極の移動距離に対する周波数の変化量ΔＦを示
す特性曲線である。図において、１は陰極端子、２は陰極導入部、３は陰極
、４は陽極、５は電子作用空間、６は磁極、６−ａは固
定用磁極、６−ｂは移動用磁極、７は永久磁石、８は磁
極先端部、９はねじ部。Figure 1 is a cross-sectional view of a conventional magnetron used to explain this invention, Figure 2 is a plan view of an anode example (tachibana type) used in the magnetron, and Figure 3 is a magnetron using the conventional frequency adjustment method. FIG. 4 is a cross-sectional view showing an embodiment of the magnetron according to the present invention, and FIG. 5 is a characteristic curve showing the amount of change in frequency ΔF with respect to the moving distance of the magnetic pole according to the present invention. In the figure, 1 is a cathode terminal, 2 is a cathode introduction part, 3 is a cathode, 4 is an anode, 5 is an electron action space, 6 is a magnetic pole, 6-a is a fixed magnetic pole, 6-b is a moving magnetic pole, and 7 is a Permanent magnet, 8 is the magnetic pole tip, 9 is the screw part.

Claims

[Scope of utility model registration request]

In a magnetron in which first and second magnetic poles are disposed facing each other with an electron action space of an anode in between, at least one of the magnetic poles is split, and the tip of the magnetic pole extends in the axial direction of the magnetron. A magnetron characterized in that the divided portion is provided with a threaded portion so as to be movable.