A Ka-band unbalanced Doherty power amplifier is designed with the 0.15-μm GaAs pHEMT technology. It utilizes Lange couplers as both the input power splitter and the output power combiner. The coupling ...

Wavefield reconstruction inversion (WRI) is a novel seismic inversion method with a more expansive search space and reduced nonlinearity and is more robust than other conventional techniques [e.g., ...