发明名称 |
Voltage controlled oscillator with impedance regulation circuit including a switching element |
摘要 |
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. |
申请公布号 |
US6072373(A) |
申请公布日期 |
2000.06.06 |
申请号 |
US19980203391 |
申请日期 |
1998.12.02 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
HAYAFUJI, HISAO;YAMAMOTO, HIROYUKI |
分类号 |
H03B5/12;H03B1/00;H03B5/02;H03B5/18;(IPC1-7):H03B5/00 |
主分类号 |
H03B5/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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