Doherty Amplifier Linearity Test for Fifth Generation Signals

In this paper, the linearity of a fabricated microstrip Doherty amplifier in asymmetrical topology (ADA) is experimentally tested for the fifth generation signals. The measurement set-up contains a Matlab programming platform, a signal generator, and a vector signal analyzer. The Matlab development platform and the signal generator are used for the generation of the 5G FBMC, UFMC, and FOFDM signals. The 5G signal spectra are measured by the vector signal analyzer at the input and output of the Doherty amplifier. The output spectra of the 5G signals for different input power levels gained in measurements are compared to the simulated results.