KEYNOTE: Load Modulated Power Amplifiers for Wireless Infrastructure

Since the introduction of third-generation mobile communication in 2000, base station radios have relied entirely on Doherty power amplifiers. Their dominance has remained unchallenged, despite numerous disruptive advancements in the industry, such as multi-standard radios supporting multi-carrier GSM, WCDMA, LTE, and NR; the shift from silicon LDMOS to GaN HEMTs; concurrent multi-band power sharing; and the massive MIMO architecture. Will Doherty power amplifiers continue to dominate the industry indefinitely? If not, what might come next? This presentation explores the latest load modulation techniques and offers an industrial perspective on future technological trends, challenges, and opportunities.