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http://dx.doi.org/10.7236/IJASC.2020.9.1.172

X-band CMOS VCO for 5 GHz Wireless LAN  

kim, Insik (Department of Information and Communication Engineering, Hannam University)
Ryu, Seonghan (Department of Information and Communication Engineering, Hannam University)
Publication Information
International journal of advanced smart convergence / v.9, no.1, 2020 , pp. 172-176 More about this Journal
Abstract
The implementation of a low phase noise voltage controlled oscillator (VCO) is important for the signal integrity of wireless communication terminal. A low phase noise wideband VCO for a wireless local area network (WLAN) application is presented in this paper. A 6-bit coarse tune capacitor bank (capbank) and a fine tune varactor are used in the VCO to cover the target band. The simulated oscillation frequency tuning range is from 8.6 to 11.6 GHz. The proposed VCO is desgned using 65 nm CMOS technology with a high quality (Q) factor bondwire inductor. The VCO is biased with 1.8 V VDD and shows 9.7 mA current consumption. The VCO exhibits a phase noise of -122.77 and -111.14 dBc/Hz at 1 MHz offset from 8.6 and 11.6 GHz carrier frequency, respectively. The calculated figure of merit(FOM) is -189 dBC/Hz at 1 MHz offset from 8.6 GHz carrier. The simulated results show that the proposed VCO performance satisfies the required specification of WLAN standard.
Keywords
Voltage Controlled Oscillator; X-band; CMOS; Wideband; Bondwire Inductor; Phase Noise;
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Times Cited By KSCI : 3  (Citation Analysis)
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