Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Patent
1988-03-28
1990-05-15
LaRoche, Eugene R.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
315 5, 315 526, H01J 2500
Patent
active
049260936
ABSTRACT:
A gyrotron device according to the present invention, having an electron gun for emitting an electron beam having an annular cross seciton, coils for applying a magnetic field to the electron beam emitted from the electron gun, a resonator for resonating the electron beam with microwaves and converting energy of the electron beam into microwaves, a collector for collecting the electron beam, a directional coupler for causing microwaves of a predetermined mode to pass, and a waveguide unit for guiding the microwaves from the directional coupler to an external portion.
REFERENCES:
patent: 2952820 (1960-09-01), Lewin
patent: 3815136 (1974-06-01), Rootsey
patent: 4604551 (1986-08-01), Moeller
Edgcombe, "Gyrotrons for Megawatt Power Generation", Vacuum, vol. 30, No. 11/12, Nov.-Dec. 1980, pp. 473-477.
Gaponov et al, "Powerful Millimetre-Wave Gyrotrons", Int. J. Electronics, vol. 51, No. 4, 1981, pp. 277-302.
IEEE Transactions on Microwave Theory and Techniques, vol. MTT-28, No. 12, Dec. 1980, pp. 1477-1481, IEEE, New York, U.S.; L. R. Barnett et al: "Circular-Electric Mode Waveguide Couplers and Junctions for Use in Gyrotron Traveling-Wave Amplifiers".
IEEE Transations on Antennas and Propagation, vol. AP-21, No. 2 Mar. 1973, pp. 164-169, IEEE, New York, U.S.; G. F. Koch: "Coaxial Feeds for High Aperture Efficiency and Low Spillover of Paraboloidal Reflector Antennas".
Ham Seung
Kabushiki Kaisha Toshiba
LaRoche Eugene R.
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