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High-frequency oscillator, high-frequency transmission-reception apparatus using the same, radar apparatus, and radar-apparatus-equipped vehicle and small boat equipped with the same

  • US 20060017606A1
  • Filed: 06/28/2005
  • Published: 01/26/2006
  • Est. Priority Date: 06/29/2004
  • Status: Active Grant
First Claim
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1. A high-frequency oscillator comprising:

  • a high-frequency oscillation element for generating high-frequency signals;

    a variable-capacitance element of which capacitance changes by applying a bias voltage;

    a resonator connected to the high-frequency oscillation element, of which oscillation frequency changes along with the change of the capacitance of the variable-capacitance element; and

    a bias supply circuit connected to the variable-capacitance element, for supplying a bias voltage to be applied to the variable-capacitance element the bias supply circuit including a pre-set variable resistor for regulating the bias voltage.

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