Wideband and Efficient Doherty Power Amplifier in n78 C-band

This paper presents an efficient, linear, and broadband Doherty power amplifier (DPA) design in n78 C-band. In order to achieve improved performance, a modified load combiner network (MLCN) approach is incorporated into an inverse Doherty PA (IDPA) architecture. Proposed PA is realized through a premier and cutting-edge n78 band device, GTRB384608FC. Proposed DPA covers entire n78 band from 3.3 to 3.8 GHz (500 MHz) with enhanced efficiency of 40.5% to 46.5%, for an average power of 47.5 dBm and attained peak power, ranging from 54 dBm to 55.5 dBm. As well as it able to sustain an output PAPR in between 6.5 dB to 8 dB across the spectrum in continuous wave (CW) signal excitation.