发明名称 |
Voltage controlled oscillator and electronic apparatus using same |
摘要 |
A voltage controlled oscillator is provided which oscillates in a stable manner at a high frequency and obtains a large variable range of frequency. The oscillator includes a transistor, and distributed-constant line connected to the base of the transistor. The distributed-constant line has substantially 1/4 wavelength at the oscillation frequency of the oscillator, and has one open end. An inductance element is provided comprising a capacitor having a self-resonance frequency which is lower than the oscillation frequency. This inductance element is connected to the collector of the transistor. A varactor diode is connected to the capacitor.
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申请公布号 |
US6369664(B1) |
申请公布日期 |
2002.04.09 |
申请号 |
US19990438324 |
申请日期 |
1999.11.12 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
MUTO SATORU;OE OSAMU |
分类号 |
H03B5/18;(IPC1-7):H03B5/18 |
主分类号 |
H03B5/18 |
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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