Oscillators – Solid state active element oscillator – Transistors
Patent
1998-12-02
2000-06-06
Kinkead, Arnold
Oscillators
Solid state active element oscillator
Transistors
331117R, 331177V, 331 74, 331 36C, H03B 500
Patent
active
060723734
ABSTRACT:
A voltage control oscillator capable of obtaining the desired output voltage by lowering the higher order harmonic level, is provided. Further, in the voltage control oscillator, a resonance circuit achieves the resonance by switching two different resonance frequencies. Moreover, inductors of a matching circuit are selectively used to change the inductance by turning on/turning off a diode of an impedance regulation circuit according to the respectively switched frequencies. Furthermore, the synthesized impedance with a matching capacitor is changed to achieve the matching with each of two frequencies.
Hayafuji Hisao
Yamamoto Hiroyuki
Kinkead Arnold
Murata Manufacturing Co. Ltd.
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