An ultra low voltage ultra low power folded cascode CMOS LNA using forward body bias technology for GPS application

A fully integrated low noise amplifier suitable for ultra-low voltage and ultra-low-power GPS applications is designed and simulated in a standard 0.18 μm CMOS technology. By employing the folded cascode and forward body bias technique, the proposed LNA can operate at a reduced supply voltage and power consumption. The proposed LNA delivers a power gain (S₂₁) of 17.6 dB with a noise figure of 3 dB, while consuming only 960 μW dc power with an ultra low supply voltage of 0.45 V. The power consumption figure of merit (FOM₁) and the tuning-range figure of merit (FOM₂) are optimal at 18.33 dB/mw and 8.8 (v.mw)^-1, respectively.