公开(公告)号：US09312808B2

公开(公告)日：2016-04-12

申请号：US14429807

申请日：2013-03-12

Applicant: INSTITUTE OF MICROELECTRONICS, CHINESE ACADEMY OF SCIENCES

Inventor： Zhiqiang Lv ,  Lan Chen

IPC: H03B5/08 ,  H03B5/02 ,  H03B5/12

CPC classification number: H03B5/02 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1253 ,  H03B2200/009

Abstract: A low-noise and big tuning range voltage-controlled oscillator. Wherein a current source circuit is used for generating working current of the voltage-controlled oscillator, a resonance circuit is used for generating an oscillating signal of the voltage-controlled oscillator, the resonance circuit is an inductance and capacitance type resonance circuit, wherein capacitance adopts a metal oxide semiconductor (MOS) capacitive reactance tube or a reverse diode to increase the tuning range of the circuit, a negative resistance circuit is used for generating negative resistance to counteract positive resistance generated by the resonance circuit, and a feedback circuit is used for feeding back the oscillating signal generated by the resonance circuit to the current source circuit to add a new current to the current source.

Abstract translation: 低噪声，大调谐范围的压控振荡器。 其中，电流源电路用于产生压控振荡器的工作电流，谐振电路用于产生压控振荡器的振荡信号，谐振电路是电感和电容型谐振电路，其中电容采用 金属氧化物半导体（MOS）电容性电抗器或反向二极管以增加电路的调谐范围，负电阻电路用于产生负电阻以抵消由谐振电路产生的正电阻，反馈电路用于 将由谐振电路产生的振荡信号反馈到电流源电路以向当前源添加新电流。