Power Amplifier for RF Long Range Wide Area Monitoring and Control of Urban Farm

AB class power amplifier (PA) is designed for long range wide area monitoring and control of urban farm. The PA is part of transceiver device which operates on 2.4 GHz frequency and 22 MHz bandwidth. The design is carried out by determining DC bias, completing the bias network with load pull analysis and impedance matching, and converting the resulting design to layout. The design process is done using Advanced Design System (ADS) software. QPSK modulated signal is used to simulate and compare signal spectrum before entering and after entering the power amplifier.