The Ferrite Company, Inc.

David R Lawson

E Eugene Eves, Ii

George M Harris

William J Alton

Paul M C Alton

Isaac Feldpausch

A compact, high speed, miniaturized adaptive controller for a microwave power generator. A pair of directional couplers are arranged between a microwave source and a circulator to measure forward and reverse power. An electromagnet in the circulator may be controlled in response to a VSWR calculation. In some arrangements, the directional couplers may be loop-type directional couplers that are integrated into a waveguide magnetron launching assembly. The directional couplers may use a tapered coaxial line that presents an impedance that reduces along the length thereof. This enhances the directivity of the loop coupler and improves performance of the controller.

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Portland, ME, United States of America

David R Lawson