Title :
A wideband and low phase noise CMOS Voltage Controlled Oscillator
Author :
Guo, Xuefeng ; Wang, Zhigong ; Tsang, KF ; Lee, Wc
Author_Institution :
Inst. of RF- & OE-ICs, Southeast Univ., Nanjing
Abstract :
In this paper, a wideband LC cross-coupled VCO is designed and realized with the TSMC 0.18 mum CMOS technology. By incorporating band switching capacitors, the overall tuning frequency range is divided into 16 bands, covering 1.17-1.9 GHz (47%). A linear time variant (LTV) model is used to quantitatively analyze voltage biased oscillators. In order to minimize the phase noise, the size of the MOSFET and the tank inductance are optimized, and a noise filtering technique is adopted.
Keywords :
CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; integrated circuit design; integrated circuit noise; phase noise; voltage-controlled oscillators; MOSFET; TSMC CMOS technology; band switching capacitors; frequency 1.7 GHz to 1.9 GHz; linear time variant model; low-phase noise voltage controlled oscillator; noise filtering technique; quantitative analysis; size 0.18 mum; tank inductance; wideband LC cross-coupled VCO design; CMOS technology; Capacitors; Frequency conversion; Inductance; MOSFET circuits; Phase noise; Semiconductor device modeling; Tuning; Voltage-controlled oscillators; Wideband;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4958360
