A CMOS LC VCO with 3.2～6.1GHz Tuning Range

Ning Yanqing; Chi Baoyong; Wang Zhihua; Chen Hongyi

Chin. J. Semicond. > 2007, Volume 28 > Issue 4 > 526-529

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A CMOS LC VCO with 3.2～6.1GHz Tuning Range

Ning Yanqing, Chi Baoyong, Wang Zhihua and Chen Hongyi

+ Author Affiliations

Abstract: The design and implementation of a CMOS LC VCO with 3.2～6.1GHz tuning range are presented.This is achieved by enhancing the tuning capability of the binary-weighted band-switching MIM capacitor.The circuit has been implemented in a 0.18μm RF/Mixed-Signal CMOS process.The measured phase noise is -101.67dBc/Hz at 1MHz offset from a 5.5GHz carrier,and the VCO core draws 9.69mA current from a 1.8V supply.

Key words: wideband, LC VCO, CMOS, MB-OFDM UWB

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Ning Yanqing, Chi Baoyong, Wang Zhihua, Chen Hongyi. A CMOS LC VCO with 3.2～6.1GHz Tuning Range[J]. Journal of Semiconductors, 2007, 28(4): 526-529.

Ning Y Q, Chi B Y, Wang Z H, Chen H Y. A CMOS LC VCO with 3.2～6.1GHz Tuning Range[J]. Chin. J. Semicond., 2007, 28(4): 526.

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Received: 18 August 2015 Revised: 26 October 2006 Online: Published: 01 April 2007

The design and implementation of a CMOS LC VCO with 3.2～6.1GHz tuning range are presented.This is achieved by enhancing the tuning capability of the binary-weighted band-switching MIM capacitor.The circuit has been implemented in a 0.18μm RF/Mixed-Signal CMOS process.The measured phase noise is -101.67dBc/Hz at 1MHz offset from a 5.5GHz carrier,and the VCO core draws 9.69mA current from a 1.8V supply.

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