Digital Control and Linearization of High-Efficiency LMBAs

The presentation will explore different digital linearization strategies for achieving high efficiency in LMBAs when handling 5G NR signals, which feature bandwidths in the hundreds of MHz and peak-to-average power ratios exceeding 10dB. Specifically, we will discuss control and linearization techniques for a pseudo-Doherty LMBA. The talk will compare N-stage cascaded models and artificial neural network models, evaluating their performance in linearization and their computational complexity.