| 摘要 |
<p>A high frequency generator has generating means (1,2,3,4,5) for generating a signal of a first frequency, and multiplier means (6) comprising a multiplier diode (64) for providing harmonic frequency signals from the signal of the first frequency, one of which is a selected harmonic signal for providing a high frequency output signal of the generator.</p><p>Bias voltage control means (61,62,63,65,66,67) control bias voltage applied to the multiplier diode (64) thereby to turn off or reduce the output of the generator by suspending a suppressing multiplication operation of the multiplier means.</p> |
