Title:
MAGNETRON
Document Type and Number:
Japanese Patent JPH03179641
Kind Code:
A
Abstract:
PURPOSE: To symmetries a part in close vicinity to an interactive space of an anode structure, and obtain excellent performance by making the outside ends of respective anode vanes exist at almost same outside radial distance from the center of a circle, making its insides exist at almost same inside radial distance, and arranging them at equal intervals along the circle with this inside radial distance as a radius. CONSTITUTION: An anode structure 2 forms two sets of resonant cavities arranged around a cathode 1, and one sets 5 of resonant cavities have the large volume, and are alternately arranged with the other sets 6 of cavities. The outside ends 7 of vanes 4 are inserted into a slot of a cylindrical wall 3, and are arranged on the circumference having a radius (a) from the center of the cathode 1, and the inside ends 8 of the respective vanes 4 are also respectively arranged at the same distance (b) from the center of the cathode 1, and are arranged at almost equal distance along the circumference of a radius (b). In this way, since the inside ends of the respective vanes are symmetrically arranged to an interactive space, excellent performance of a magnetron is obtained. Since dimensionally different both cavities become almost the same in a radial directional depth, an anode structure as a whole is reduced in the size.
Inventors:
PIITAA RUISU
Application Number:
JP27888190A
Publication Date:
August 05, 1991
Filing Date:
October 17, 1990
Export Citation:
Assignee:
EEV LTD
International Classes:
H01J23/213; H01J23/16; H01J25/593; (IPC1-7): H01J23/213
Attorney, Agent or Firm:
Minoru Nakamura (7 outside)