LTE power amplifier module design: Challenges and trends

Long Term Evolution (LTE) provides a high data rate, high quality and low cost solution for the cellular industry facing an overwhelming increase in mobile data traffic. Beginning with an overview of LTE UE transmitter requirements, we examine the key challenges for the power amplifier module (PAM) from the perspective of designers, and review current development activities. Then, trends are predicted in architecture design as well as device and technology development.