IEEE Radio Wireless Week (RWW)
This paper presents an experimental demonstration of digital pre-distortion (DPD) on E-band power amplifiers (PA) with GHz channel bandwidth. An empirical optimization approach is used to quickly build up the look-up table of DPD coefficients, instead of the conventional behavior modeling technique. The digital pre-distorter is implemented by a simple 5th order memoryless polynomial function. The DAC sampling rate is 4.8 GSps. Based on our approach and system setup, the result shows DPD can push 2 to 3 dB more output power at the same in-band distortion level, which is equivalent to 58% to 100% efficiency improvement.
Donglai Xiang, Timur Bagautdinov, Tuur Stuyck, Fabian Prada, Javier Romero, Weipeng Xu, Shunsuke Saito, Jingfan Guo, Breannan Smith, Takaaki Shiratori, Yaser Sheikh, Jessica Hodgins, Chenglei Wu
Ludwig Sidenmark, Mark Parent, Chi-Hao Wu, Joannes Chan, Michael Glueck, Daniel Wigdor, Tovi Grossman, Marcello Giordano
Simon Vandenhende, Dhruv Mahajan, Filip Radenovic, Deepti Ghadiyaram
