Abstract

In this paper, a novel synthesis method for designing broadband and highly efficient power amplifier (PA) based on optimal impedance analysis and simplified real frequency technique (SRFT) is presented. After determining the impedances for highly efficiency across the bandwidth of interest, the optimal matching topology and element values are obtained utilizing the SRFT. The effectiveness of this design technique is illustrated using a commercially available 10W GaN device. The designed PA achieved an average power-added efficiency (PAE) of 62% from 1.0 GHz to 3.0 GHz (100%) with an average output power of 40.5 dBm and gain of 12.5 dB.

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