WANG Wei, ZENG Yong, PENG Neng, et al. Design of 24GHz high linearity low power CMOS mixer[J]. 2011, 30(1): 90-93. DOI: 10.13873/j.1000-97872011.01.019.
A feedforward compensated differential transconductor and LC-tank folded-cascode structure are used to design a 24GHz high linearity low power consumption down conversion mixer which is used to automotive anti-collision radar system.The Gilbert cell mixer’s linearity and the optimization technology are detailed analyzed.This circuit is simulated with TSMC 0.18μm RF CMOS process
and the layout is designed.The suppling voltage is 1.8V
a RF signal is 24.0GHz and an IF frequency is 100MHz.The simulation results show that the IIP3 of the proposed structure can achieve 4dBm