resonant-chamber switch

resonant-chamber switch

[′res·ən·ənt ¦chām·bər ‚swich]
(electromagnetism)
Waveguide switch in which a tuned cavity in each waveguide branch serves the functions of switch contacts; detuning of a cavity blocks the flow of energy in the associated waveguide.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.