This paper presents a 0.3 mW 2.4 GHz low-power low-noise amplifier (LNA) using a forward-body bias technique for a wireless sensor network. The proposed LNA is implemented using CMOS 0.13-µm Silterra technology. The forward-body bias technique with a cascode configuration has been adopted in order to obtain low power consumption. A low supply voltage of 0.5 V is used to optimize the trade-offs between the LNA performances. The post-layout simulation results indicate that a power consumption of 0.3 mW is achieved. The simulated input return loss (S11) is less than -17.71 dB while the output return loss (S22) is below -14.83 dB. Moreover, the gain (S21) of 9.86 dB, the noise figure (NF) of 5.11 dB and the input-referred third-order intercept point (IIP3) of -7.5 dBm at 2.4 GHz is obtained with the calculated figure of merit (FOM) of 4.64 (1/mW).
A Low Power 2.4 GHz CMOS Mixer Using Forward Body Bias Technique for Wireless Sensor Network