Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Patent
1993-12-08
1996-10-22
Lee, Benny T.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
315 538, 330 43, H01J 2534
Patent
active
055680143
ABSTRACT:
According to this invention, a traveling-wave tube amplifier includes a traveling-wave tube having a multistage depressed collector and a power supply for applying operation voltages to the traveling-wave tube. A body voltage (Vb) for a cathode of the traveling-wave tube is set to be lower than a small-signal synchronous voltage (Vbs) at which a small-signal gain of the traveling-wave tube is maximized. As a result, a tube efficiency (.eta.t) of the traveling-wave tube can be increased and an efficiency of the traveling-wave tube amplifier can be increased as compared with a conventional device.
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Momota et al: "Development of 22-GHz Band High-Power TWT for Direct Broadcasting Satellites" Proceedings of the Eighteenth International Symposium on Space Technology and Science -Kagoshima 1992.
Aoki Yasuhiro
Ide Hideki
Momota Kiyoshi
Onihashi Hiroshi
Yamamoto Tetsuo
Kabushiki Kaisha Toshiba
Lee Benny T.
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