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A concurrent second harmonic controlled 1.7/2.14GHz dual-band GaN power amplifier (PA) for base station is designed, fabricated and tested in this paper. The influence of 2nd harmonic on PAE (Power Added Efficiency) for dual-band PA is discussed. A novel bias line structure is proposed to control the 2nd harmonic in the gate and drain side for dual-band operation. To the best knowledge of authors,...
A systematic, first-pass methodology for designing high efficiency power amplifier (PA) using only large signal CAD models is presented. Detailed analysis using the model reveals significant insights into PA operation as well as the required impedance environment for high efficiency mode of operation. In particular, waveform engineering and empirical loadpull are used to determine the optimal class...
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