= Backward-wave oscillator
{wiki=Backward-wave_oscillator}
A Backward-Wave Oscillator (BWO) is a microwave device that generates high-frequency electromagnetic waves, typically in the microwave range. The BWO operates based on the principle of backward wave propagation, which involves electrons interacting with a backward wave in a slow-wave structure. \#\#\# Key Concepts: 1. **Backward Waves**: In a BWO, the wave propagates in the opposite direction to the flow of electrons. This unique interaction is vital for the oscillator's operation.
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