backward-wave oscillator(redirected from Backward wave oscillator)
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backward-wave oscillator[′bak·wərd ‚wāv ′äs·ə‚lād·ər]
An electronic device which amplifies microwave signals simultaneously over a wide band of frequencies and in which the traveling wave produced is reflected backward so as to sustain the wave oscillations. Abbreviated BWO. Also known as carcinotron.