This paper presents dynamic supply modulation results of a broadband 6–12 GHz 4 × 1 transmit antenna array. The four 2-W GaN MMIC PAs share a 4-level GaN MMIC dynamic power supply. A single GaN MMIC ...

A three-level modulation and control scheme for a class-D audio power amplifier is presented. The proposed scheme mainly consists of a three-level modulation circuit and a feedback compensation ...