| 摘要 |
The present invention relates to magnetrons and is aimed to improve effectiveness of using a working surface of field-electron emitters, to improve reliability of devices under conditions of increased mechanical action. These objects are solved in the design of a magnetron, comprising an anode and a cathode disposed co-axially inside the anode, the cathode comprising a secondary-electron emitter; a field-electron emitter and lateral flanges functioning as focusing shields, wherein at least one of the focusing shields is located from the secondary-electron emitter and comprises at least one field-electron emitter with a working end-face thereof facing the surface of the secondary-electron emitter.
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