Cathode for magnetron
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 16, 2002
Grant Date -
N/A
app pub date -
Jan 21, 2000
filing date -
Feb 10, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cathode for a magnetron having concave/convex portions on a surface of a cylindrical base metal with thermionic emitting materials being fixedly attached to concave portions from among the concave/convex portions. The convex portions of the concave/convex portions are arranged to be inclining. It is enabled to effectively protect thermionic emitting materials from inverse impulse of electrons or ions and from oscillation to thereby restrain consumption and omission of these thermionic emitting materials and to decrease higher harmonics of radiation.
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