This book has significant value to all level of students both undergraduates as well as, postgraduate students, researchers and engineers in the field of Radio-Frequency Integrated Circuit (RFIC) design. This book provides comprehensive understanding state-of-the-art for RF design specifically Radio Frequency (RF) power amplifier design. It covers overview of 5G technology, fundamental of power amplifier, design implementation of 5G power amplifier, schematic design, layout and simulation results with an in-depth illustrative discussions and up-to-date references. It is useful as a reference and essential book for high-frequency circuit designers in both academia and industry.