A FULLY INTEGRATED MULTI-BAND LCVCO BASED ON CMOS TECHNOLOGY

作者：Ma Xuepo; Zhang Wei^*; Liu Yang

来源：Journal of Circuits, Systems, and Computers, 2010, 19(6): 1299-1305.

DOI：10.1142/S0218126610006694

• LCVCO
• multi-band
• K(VCO)
• tuning range
• noise filtering

In this paper, a cross-coupled complementary inductance-capacitance voltage controlled oscillator (LCVCO) with low phase noise and wide tuning range is presented. It has a multi-band topology and was fabricated with RF CMOS technology. For the purpose of lowering the K(VCO) and reducing the nonlinearities of varactors, the sizes of the varactors are set small. Also noise filtering technique is adopted to minimize up-conversion of the low frequency noise as well as down-conversion of the high frequency noise, thus the phase noise performance of the VCO is greatly improved. Simulation and experimental results indicate that the LCVCO displays a phase noise of -126.1 dBc at 900 kHz offset in worst case with a tuning range from 1.76 to 1.96 GHz.

• 出版日期2010-10
• 单位天津大学