High power microwave generator

Details High power microwave generator High power microwave generator

1983-12-29

1986-06-24

LaRoche, Eugene R.

Oscillators

Beam tube

With electron bunching or velocity variation means

331 79, 315 534, H03B 908

Patent

active

045969671

ABSTRACT:
A microwave generator efficiently converts the energy of an intense relativistic electron beam (REB) into a high-power microwave emission using the Smith-Purcell effect which is related to Cerenkov radiation. Feedback for efficient beam bunching and high gain is obtained by placing a cylindrical Smith-Purcell transmission grating on the axis of a toroidal resonator. High efficiency results from the use of a thin cold annular highly-magnetized REB that is closely coupled to the resonant structure.

REFERENCES:
patent: 2634372 (1953-04-01), Salisbury
patent: 2866917 (1958-12-01), Salisbury
patent: 4225806 (1980-09-01), Le Gardeur
patent: 4345220 (1982-08-01), Sullivan
S. J. Smith and E. M. Purcell, "Visible Light from Localized Surface Charges Moving Across a Grating", Phys. Rev. 92, 1069 (1953).
John A. Bradshaw, "A Millimeter Wave Multiplier Using the Purcell Radiator", Proc. Symp. on Millimeter Waves, Polytechnic Press, NY, 223-231 (1960).
K. Ishiguro and T. Tako, "An Estimation of Smith-Purcell Effect as the Light Source in the Infra-Red Region", Optica Acta 8, 25-31 (1961).

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