A PAE-Controlled Wideband Power Amplifier for Sub-6GHz 5G Applications in 28nm FDSOI Technology
Abstract
A wideband Power Amplifier (PA) with controlled efficiency based on the second harmonic matching and designed in 28nm FDSOI technology is proposed in this paper. The output network uses the harmonic processing techniques, especially the class-J one to control the Power Added Efficiency (PAE) over the Bandwidth (BW). The gain is between 16 and 19dB, Psat is between 18.5 and 20.9dBm and the PAE is 45% in the 3dB small signal BW from 2.4 to 5.1GHz. In this paper, we investigate the efficiency control principle.