Mode seeding cathode for a relativistic magnetron

Details Mode seeding cathode for a relativistic magnetron Mode seeding cathode for a relativistic magnetron

2007-07-17

2007-07-17

Lee, Benny T. (Department: 2817)

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Distributed parameter resonator-type magnetron

C315S039750, C331S087000

Reexamination Certificate

active

11146976

ABSTRACT:
A high-power relativistic magnetron wherein the cathode geometry is shaped to form a DC electric field that has a non-negligible azimuthal component causing preferential selection of the pi mode at startup (suppression of mode competition), a significant increase in radiated power output and time integrated efficiency when compared to standard relativistic magnetron cathode designs.

REFERENCES:
patent: 2808568 (1957-10-01), Cuccia
patent: 6005347 (1999-12-01), Lee
patent: 7106004 (2006-09-01), Greenwood
M. C. Jones, V. B. Neculaes, Y. Y. Lau, R. M. Gilgenbach and W. M. White, “Cathode priming of a relativistic magnetron,” Appl. Phys. Lett. 85, pp. 6332-6334, Dec. 2004.
M. C. Jones, V. B. Neculaes, W. M. White, Y. Y. Lau, R. M. Gilgenbach, J. W. Luginsland, P. Pengvanich, N. M. Jordan, Y. Hidaka, and H. L. Bosman, “Simulations of magnetic priming in a relativistic magnetron,” IEEE Trans. on Elec. Devices, 52, pp. 858-863, May 2005.

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