Design of GaN Reconfigurable Power Amplifier Based on Band-pass Filter Matching Networks

Abstract

A broadband GaN reconfigurable power amplifier based on band-pass filter matching networks is presented in this work. To realize the reconfigurable power amplifier, closed-form solution theory and distributed PIN switch are used in matching network design. PIN switch controls the branch circuit of the matching network. This reconfigurable PA is designed for 1.2-2.0 GHz and 2.2-3.0 GHz, which has 10 W (40 dBm) output power at least and 37.4% drain efficiency (DE) with the power gain higher than 10 dB. Measurement results show the designed reconfigurable PA meets the parameters mentioned above, and the correctness of the proposed reconfigurable PA theory is verified.