发明名称 |
Cathode for magnetron |
摘要 |
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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申请公布号 |
US6420821(B1) |
申请公布日期 |
2002.07.16 |
申请号 |
US20000489339 |
申请日期 |
2000.01.21 |
申请人 |
NEW JAPAN RADIO CO., LTD |
发明人 |
KISHIKI KIYOSHI;TORIKAI YUKIO;YAMASHITA TOSHIHIKO;OBATA HIDEYUKI |
分类号 |
H01J23/04;H01J23/05;(IPC1-7):H01J23/05 |
主分类号 |
H01J23/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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