Design of reconfigurable concurrent dual-band power amplifiers using reconfigurable concurrent dual-band matching network

Abstract

This paper proposes a reconfigurable and concurrent dual-band power amplifier for upcoming wireless applications such as LTE carrier aggregation. The designed power amplifier operates concurrently at 1600 MHz and 2100 MHz when the switches are OFF; whereas, when the switches are ON, the power amplifier operating frequencies shifts to 1800 MHz and 2300 MHz. Thus, the proposed power amplifier topology covers four different bands of operation while simultaneously operating at two bands. The measured results show a drain efficiency of 62%-67 % and approximate 10 W output power in all the four bands of operation.