Abstract:Data throughput, reliability, bit-error rates (BER), and backward compatibility complicate modern protocols so much that power amplifiers (PA) drive and demand most of the power mobile devices consume. As a result, PA power efficiency often limits battery life, which is why dynamically adaptive supplies are popular today. Justifying one supply scheme over another in terms of efficiency, however, is not straightforward. This paper analyzes the fundamental loss mechanisms in PAs to compare how power-and envelope… Show more
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