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《Microelectronics》 2016-04
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A 5 GHz LC Voltage-Controlled Oscillator for IEEE 802.11ac Standard

MA Jialin;ZHANG Wentao;ZHANG Bo;ZHANG Liang;Guangxi Colleges and Univ.Key Lab.of Optoelectronic Information,Institute of Elec.Engineering and Automation,Guilin Univ.of Elec.Technol.;Xi'an Univ.of Posts & Telecommunications;  
Based on TSMC RF 0.18μm CMOS process,a 5 GHz broadband LC voltage-controlled oscillator(VCO)for IEEE 802.11 ac standard was proposed.A NMOS cross couple structure was utilized,and a 5bit switched capacitor array was used to extend the tuning range,which had made KVCObe at a low value to effectively reduce VCO's phase noise.The post simulation results showed that the VCO dissipated 9 mW from a 1.8 V supply,and its frequency tuning range was from 4.52 GHz to 5.56 GHz.The simulated phase noise was-124dBc/Hz at 1 MHz offset from center frequency.The LC VCO occupied a chip area of 320μm×466μm.
【Fund】: 广西自然科学基金资助项目(2013GXNSFDA019002 2014GXNSFGA118003);; 广西教育厅资助项目(ZD2014057);; 桂林市科学研究与技术资助项目(20140127-1)
【CateGory Index】: TN752
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