Design and performance analysis of 2.4 GHz power amplifier for wireless sensor network

Power Amplifier is one of the essential component of WSN Transceiver. The main function of power amplifier is increase the power level of input signal in specially defined range. This paper present 2.4 GHz power amplifier using 0.5 um GaAs PHEMT technology. For designing of proposed power amplifier advanced design system (ADS) tool is used. The proposed power amplifier consists of two stage as driver stage and power stage. This proposed power amplifier shows at 3.3V, input return loss is -13.768 dB and output return loss is -12.754 dB respectively. Gain or forward transmission coefficient and isolation loss or reverse transmission coefficient of proposed power amplifier are 34.478 dB and -64.224 dB respectively. The output power and power added efficiency of proposed power amplifier is 22.53 dBm and 42.18 dBm respectively. The power gain of proposed power amplifier is 34.091 dBm. Also for layout designing of proposed power amplifier advanced design system software (ADS) is used. This PHEMT power amplifier is design for wireless sensor network based applications.