Abstract
Military communication equipment is build to encode, decode transmissions and carry on rough treatment in unfriendly climates. They use various bands of frequency to send and receive signals to other radios and satellites. The unmanned aerial vehicle contains digital QPSK transmitter which successes the power amplifier. The telemetry takes place in S-band frequency (2.2-2.3GHZ) and Class-A PA is to be design to operate such high frequency. In this paper a RF power amplifier of Class-A is designed to work in the frequency range of 2.2GHz to 2.3GHz with GaN HEMT. Designed single stage PA provides optimized performance, over desired band with 17 dB signal gain and 1W output power with 21.18% power added efficiency .The proposed RF power amplifier operates with 28 V drain bias voltage and has been implemented with Gerber PCB design software. The proposed power amplifier design is simulated by using software tool Advanced design system (ADS). The simulation results show that RF power amplifier is implemented for S-band with high power ability in the practical frequency range.
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