Low power high gain CMOS LNA based on inverter cell and self-body bias for UWB receivers
A low-power low-noise amplifier (LNA) utilized a resistive inverter configuration feedback amplifier to achieve the broadband input matching purposes. To achieve low power consumption and high gain, the proposed LNA utilizes a current-reused technique and a splitting-load inductive peaking technique of a resistive-feedback inverter for input matching. Two wideband LNAs are implemented by TSMC 0.18?m CMOS technology. The first LNA operates at 26GHz. The minimum noise figure is 3.6dB. The amplifier provides a maximum gain (S21) of 18.5dB while drawing 10.3mW from a 1.5-V supply. This chip area is 1.0280.921mm2. The second LNA operates at 3.110.6GHz. By using self-forward body bias, it can reduce supply voltage as well as save bias current. The minimum noise figure is 4.8dB. The amplifier provides a maximum gain (S21) of 17.8dB while drawing 9.67mW from a 1.2-V supply. This chip area is 1.2740.771mm2.
low power resistive-feedback inverter self-forward body bias low noise amplifier (lna) ultra-wideband (uwb)