Method for varying oscillation frequency of high frequency oscillator
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United States of America Patent
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May 19, 2015
Grant Date -
Feb 6, 2014
app pub date -
Jun 22, 2011
filing date -
Jun 22, 2011
priority date (Note) -
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Abstract
The switching element is provided in a state of being electromagnetically coupled to the cavity resonator of the high frequency oscillator; the bias voltage applying terminal is connected to one electrode of the switching element; another electrode of the switching element is electrically connected to the cavity resonator (the anode shell in FIG. 1); the metal plate having a size enough for reflecting an electric wave to be transmitted before and after the switching element in a high-frequency manner is provided at any one end of the switching element; and by applying a bias voltage to the switching element and varying that, a reactance of the switching element is changed and a resonance frequency of the cavity resonator is varied. By this method, an oscillation frequency can be varied greatly relative to a small change in a bias voltage.
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