Efficient multi-stage load modulation radio frequency power amplifier for green radio frequency front end PROJECT TITLE :Efficient multi-stage load modulation radio frequency power amplifier for green radio frequency front endABSTRACT:The road towards the reduction in the carbon footprint associated with power-hungry wireless Communication devices will require a holistic design approach to ensure that energy saving can be achieved throughout the entire system. The information and Communication technology today accounted for 3 and 2% global power consumption and global CO2 emissions, respectively, where a significant portion is a result of the power consumption in the radio frequency (RF) power amplifier device. Moreover, tomorrow amplifiers will need to be reconfigurable and host a plethora of modulated signals to support effective Signal Processing. Therefore performance metrics such as linearity, power efficiency and their trade-off should be at the forefront of the RF power amplifier design. This study proposes an energy-efficient power amplifier design based on the Doherty configuration as part of a green RF front end for mobile WiMAX. The authors extend the classical Doherty to incorporate a three-stage load modulation design with a proposed new output power combiner. The performance of the three-stage load modulation RF power amplifier is compared with the legacy two-stage load modulation technique. The experimental results show that 30 dBm output power can be achieved with 67% power-added efficiency, which represents a 14% improvement over the current state-of-the-art system while meeting the power output requirements for mobile WiMAX. Did you like this research project? To get this research project Guidelines, Training and Code... Click Here facebook twitter google+ linkedin stumble pinterest Special issue on energy efficient reconfigurable transceivers Compensation of transmission non-linearity distortion with memory effect for a WLAN802.11a transmitter