Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Patent
1981-07-07
1983-11-08
Chatmon, Saxfield
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
315 35, 315 535, 333257, H01J 2534
Patent
active
044144865
ABSTRACT:
Two coupled cavity type, slow-wave circuits are separated, with a drift space section between them. An electron beam and an electromagnetic wave, which do not interact with each other, over a certain length, are in the drift space. A waveguide type non-reflective termination structure has a waveguide axis directed in the same direction as the electron beam and is coupled to the cavity, slow-wave circuits with respect to a high frequency wave disposed in the drift space section. With such a construction, a traveling wave tube is formed with a PPM focusing and with a non-reflective termination structure includes a waveguide member having a through-hole for passing an electron beam and two waveguides formed on the opposite sides of the through-hole. A lossy ceramic member is disposed within one of the two waveguides for a forwardly traveling wave and another lossy ceramic member is disposed in the other waveguide for a backwardly traveling wave. Each of the two waveguides has one end sealingly closed with tapered ceramic members of the forwardly traveling wave and for the backwardly traveling wave secured on the respective waveguide walls. During its propagation, an electromagnetic wave is perfectly absorbed by the lossy ceramic members.
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High-Power Traveling-Wave Tube YH 1041, a New Transmitter Tube for Satellite Radiocommunication. Reprint from "Siemens-Review" vol. XXXIV--Feb. 1967--No. 2 pp. 60 to 68 Authors: Karl Heintz and Erich Mayerhofer.
Kageyama Takao
Tsutaki Kunio
Chatmon Saxfield
Nippon Electric Co. Ltd.
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