发明授权
US5045749A Electron beam generator and electronic devices using such a generator
失效
电子束发生器和使用这种发生器的电子装置
- 专利标题： Electron beam generator and electronic devices using such a generator
- 专利标题（中）： 电子束发生器和使用这种发生器的电子装置
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申请号： US486749申请日： 1990-03-01
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公开(公告)号： US5045749A公开(公告)日： 1991-09-03
- 发明人: Henri Desmur
- 申请人： Henri Desmur
- 申请人地址： FRX Boulogne Billancourt
- 专利权人： Thomson Tubes Electroniques
- 当前专利权人： Thomson Tubes Electroniques
- 当前专利权人地址： FRX Boulogne Billancourt
- 优先权： FRX8902966 19890307
- 主分类号： H01J3/02
- IPC分类号： H01J3/02 ; H01J23/06 ; H01J25/66
摘要：
An electron beam generator which can operate in pulse or continuous mode, has an electron beam which is emitted in a main electron gun including a thermionic cathode and an anode. Used in association with this main electron gun is an auxiliary electron gun including a cathode, a grid intended to modulate an auxiliary electron beam in pulses when it is operating in pulse mode or to adjust the current of the auxiliary electron beam when it is operating in continuous mode, and an anode. The anode is in thermal and electric contact with the cathode of the main electron gun. The auxiliary electron beam controls the emission from the cathode. The electron beam emitted by the main electron gun is not disturbed by crossing the grid. Application of the electron beam generator is notably to microwave longitudinal interaction tubes operating at high average and/or peak power.
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