A New Design of Voltage Controlled Oscillator

作者:Wu Xiulong*; Chen Junning; Mei Zhenfei; Zhao Yuhao; Xu Tailong
来源:3rd International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM 2007), 2007-09-21 to 2007-09-25.
DOI:10.1109/WICOM.2007.175

摘要

This paper designed a new low phase noise voltage controlled oscillator (VCO) with harmonic filtering resistor and source damping resistor. The author analyzed and modulated the results by the simulator of Mentor Graphics In a 0.35-um CMOS process, and achieved the optimization scheme in the end. The simulation result shows the VCO can reach a phase noise of - 124.9dBc/Hz at 1MHz offset while working at 4.6GHz In a 3mA excursion current. During the 0 to 3 controlled voltage the tuning range can reach 18.5%, and the power consumption is only 7.09mW.

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