Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Patent
1983-02-10
1985-05-28
Chatmon, Saxfield
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
315 5, 315 527, 315 528, H01J 2522
Patent
active
045202931
ABSTRACT:
A high frequency amplifier for a frequency range from 300 MHz to 3 GHz and having output power in the megawatt range. A beam generating device for generating a rotating electron beam includes an input resonator ring rotationally symmetric with respect to the amplifier axial axis and which presents a concentric input gap. A cathode ring disposed in front of the input gap generates the electron beam in response to an HF electrical field. The azimuthal angle width of that electron beam can be adjusted by means of a direct voltage between cathode ring and grid ring. An output resonator ring converts the kinetic energy of the beam electrons into HF power in dependence on the azimuthal angle width of the entering beam. The output resonator is rotationally symmetric with respect to the amplifier axis, axially spaced from and biassed with respect to the input resonator by a direct voltage. The axial space between the input and output resonators constitutes a direct voltage acceleration path which the electron beam traverses within an annular cylindrical region coaxial with the amplifier axis. A grid ring disposed opposite the cathode ring allows passage of the beam but prevents passage of an electrical field from the input resonator into the acceleration path. A collector is disposed on the side of the output resonator remote from the input resonator. The beam generating device, acceleration path, output resonator and collector are axially disposed one behind the other.
REFERENCES:
patent: 2408437 (1946-10-01), McRae
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patent: 4210845 (1980-07-01), Lebacqz
"Handbuch der Elektronik", Munchen, Franzis-Verlag, 1979; pp. 426-429.
IEEE Transactions, vol. Ed.-26, No. 10, Oct. 1979, pp. 1559-1556.
Stanford Linear Accelertor Center Publication of 1979 Particle Accelerator Conference, San Francisco, CA, Mar. 12-14, 1979.
Chatmon Saxfield
Kernforschungszentrum Karlsruhe GmbH
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