Arquitecturas de transmisión inalámbrica de alta eficiencia

Abstract

In this paper, different architectures for improving power efficiency in modern wireless transmitters are evaluated, with their advantages and limitations. Dynamic load modulation and digital predistortion techniques are employed for improving the characteristics of classical I/Q transmitters under wideband communication formats, while envelope tracking implementation details are considered for further improving average efficiency in those architectures according to current available technology. Finally, advances in the RF path design of the emerging polar transmitter topology are also presented.