Abstract:A novel adaptive power-divider (APD) structure is introduced to overcome the limitations of practical Doherty power amplifiers (DPA). This technique provides a new structure for which the primary distinction from conventional structures is that it adjusts power division ratio to reduce the work load during measurement. Because the base station power amplifiers have a low efficiency due to the power back-off operation, efficiency enhancement techniques become very important. In this article, the efficiency simu… Show more
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