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cavity resonator

American  

noun

Electronics.

  1. resonator4a

cavity resonator British  

noun

  1. Also called: resonant cavity.   rhumbatron.  electronics a conducting surface enclosing a space in which an oscillating electromagnetic field can be maintained, the dimensions of the cavity determining the resonant frequency of the oscillations. It is used in microwave devices for frequencies exceeding 300 megahertz

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