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This paper presents a novel design and an optimization methodology of an ultra-low power and low phase noise RF voltage controlled oscillator (VCO). This VCO is based on a PMOS-NMOS cross-coupled topology operating in the subthreshold region. An adaptive body biasing technique is presented in this circuit leading to a high immunity to PVT (P=Process, V=Voltage, and T=Temperature) variations. The VCO,...
Optimization of CMOS circuits is essential to reduce power consumption and improve phase noise performance. A novel method to optimize voltage-controlled oscillator VCO is proposed using a current reuse technique. In this paper, three VCO topology for 2.4 GHz application are designed in 0.13μm CMOS process and are simulated using Cadence Spectre. The improvement of the VCO topology is described and...
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