Power Amplifiers are inherent part of a transmitting chain which required boosting the signal to overcome channel losses between transmitter and receiver. Power amplifiers are the prime consumers of the power in a transmitter hence during design stage designers need to look for the efficiency which is the figure of merit to know how efficiently DC power can be converted to RF power which is known as PAE (Power Added Efficiency). Also notice that efficiency translates either into lower operation costs e.g. Cellular Base Station or longer battery life e.g. Wireless handheld device such as Mobile Phone. Power Amplifier linearity is another important aspect of PA design so as to preserve the input and output power relationship to maintain the signal integrity. The design of PA often requires trade-off between linearity and efficiency.
Volume 11 | 09-Special Issue
Pages: 653-660
DOI: 10.5373/JARDCS/V11/20192618