A Wideband Efficiency-Enhanced Class-G Digital Power Amplifier for IoT Applications

This letter presents a wideband digital power amplifier (DPA) with Class-G technique to enhance back-off efficiency for Internet-of-Things (IoT) applications. The switched-capacitor power amplifier topology is adopted for high linearity performance. A wideband matching network is proposed to achieve 0.54-0.95-GHz frequency coverage for 802.11ah and narrowband IoT standards. The measurement results...