A Dual-Band Series Coupled Quadrature LC-VCO for IMT-A and UWB Systems

摘要：

In this paper, a dual-band quadrature voltage controlled oscillator (QVCO) for 3.4-3.6 GHz IMT-A and 4.2-4.8 GHz UWB applications is presented. To accomplish dual-band operation, reconfigurable LC tank is adopted. Series coupling transistors are attached to generate quadrature phase signal with low phase noise and low power consumption. To improve phase noise performance, the current source is eliminated. The simulated phase noises at 1 MHz offset frequency are -120 dBc/Hz at 3.5 GHz and -118 dBc/Hz at 4.5 GHz, respectively. Designed in 0.13 μm process, the proposed QVCO core power dissipation is 11 mW from 1.2 V power supply.

作者: Xinrong Hu Fengyi Huang Tao Li Xusheng Tang

作者单位: RF&OEIC Research Institute, National Mobile Communications Research Laboratory Southeast University, No.2 Sipailou Nanjing 210096, China

会议类型: 国际会议

会议名称: 2010国际超宽带会议(ICUWB 2010)

会议地点: 南京

会议语种:英文

页码: 1-4

在线出版日期: 2010-09-20（万方平台首次上网日期，不代表论文的发表时间）