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This paper focuses on power amplifiers linearization based on adaptive predistortion and their susceptibility to IEMI. The method gives very good results in simulation and on a test bench. The idea here is to illuminate the power amplifier with an intentional electromagnetic interference while its model coefficients are being processed. This leads to an erroneous model inference and therefore a poor...
A switched behavioral model considering memory effects with a special focus on “difficult” amplifier architectures is proposed in this paper. The proposed model is shown to be very low-complex and linearly identifiable. A digital predistorter based on the proposed model is implemented for a 100-W 2.6-GHz Doherty power amplifier that has been considered difficult in other reports, and it is shown that...
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