Design of a 24GHz Low Phase-Noise, Wide Tuning-Range VCO with Optimized Switches in Capacitor Array and Bias Filtering Technique
A low phase-noise 24GHz VCO (voltage-controlled oscillator) for mm-wave WLANs (wireless LANs) using IBM 90nm CMOS process is presented. A current source is used to minimize the impact due to the process ? variation. Biasing filter technique is adopted to improve the phase noise performance. In addition, optimized switches are proposed to prevent phase noise degradation. Simulation shows that -101dBc/Hz phase noise is achieved at 1MHz offset. The tuning range of the VCO spans from 24.2GHz to 29.1GHz. Total power consumption of the VCO core is 2.8mW from 0.8V supply.
Dongxu Yang Hongrui Wang Dajie Zeng Hongda Zheng Li Zhang Zhiping Yu
Institute of Microelectronics, Tsinghua University, Beijing, China 100084
国际会议
上海
英文
696-698
2010-11-01(万方平台首次上网日期,不代表论文的发表时间)