An 87.1% efficiency RF-PA envelope-tracking modulator for 80MHz LTE-Advanced transmitter and 31dBm PA output power for HPUE in 0.153μm CMOS. - Chen-Yen Ho; Shih-Mei Lin; Che-Hao Meng; Hao-Ping Hong; Sheng-Hong Yan; Ting-Hsun Kuo; Chia-Sheng Peng; Chieh-Hsun Hsiao; Hsin-Hung Chen; Da-Wei Sung; Chien-Wei Kuan (ISSCC, 2018)