发明名称 |
CAPACITIVE-DEGENERATION DOUBLE CROSS-COUPLED VOLTAGE-CONTROLLED OSCILLATOR |
摘要 |
A capacitive-degeneration double cross-coupled voltage-controlled oscillator is provided. The capacitive-degeneration double cross-coupled voltage-controlled oscillator includes a main cross-coupled oscillating unit including an oscillation transistor pair cross-coupled to first and second output nodes of a resonating unit to perform an oscillation operation; and an auxiliary cross-coupled oscillating unit including a positive-feedback transistor pair cross-coupled to the first and second output nodes and the transistor pair of the main cross-coupled oscillating unit and a degeneration capacitance connected between emitters of the positive-feedback transistor pair so as to increase a negative resistance of the main cross-coupled oscillating unit. Accordingly, it is possible to increase a maximum attainable oscillation frequency and to decrease an input capacitance. |
申请公布号 |
US2009134944(A1) |
申请公布日期 |
2009.05.28 |
申请号 |
US20080114705 |
申请日期 |
2008.05.02 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
LEE JA YOL;LEE SANG HEUNG;KIM HAE CHEON;YU HYUN KYU |
分类号 |
H03B5/12 |
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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