Yahia Ibrahim, Ali Niknejad


Modern communication systems use orthogonal frequency division multiplexing (OFDM) which has high peak to average power ratio (PAPR). This high PAPR requires the system to have high compression point. However, the system requires high efficiency at the average output power (6dB back-off). The proposed work shows measurement results for a Doherty PA with novel adaptive biasing for 5G communicaitonsystems as well as the measurement results for 90GHz isolated combining PA.