A comprehensive guide to the fundamentals of radio frequency (RF), microwave engineering, and the physical aspects of wireless communications. Combining physical-technical fundamentals with numerical simulations, RF and Microwave Engineering presents a wide range of RF topics with emphasis on physical aspects such as electromagnetic (EM) and voltage waves, transmission lines, passive circuits, and antennas. The text discusses the propagation of waves and their representation, effects, and utilization in passive circuits and antenna structures, incorporates various design examples using circuit and EM simulation software, and gives examples of modern RF tools to show how methods can be applied productively in RF engineering practice. This revised edition includes new chapters on monostatic and bistatic radar cross sections (RCS), horn antennas, 5G mobile communications, substrate-integrated-waveguides (SIW), slot antennas, characteristics of resonators, and other topics. A list of practice problems is provided at the end of each chapter and a companion website hosts solutions to the problem sets. Written by a highly qualified professor this is the English language translation of the German original. RF and Microwave Engineering includes: Transmission line theory and transient signals on lines, covering characteristic line impedances, voltage waves, idealized lossless lines and cables with low losses, impedance transformation, reflection coefficient, and Smith chart diagram Waveguides, covering coaxial lines, including weak losses, parallel wire lines, microstrip lines, rectangular waveguides, substrate-integrated-waveguides, and three-wire systemsScattering parameters, covering multiport equations in matrix form, special network properties of circuits, and the signal flow methodHigh-frequency components and circuits, covering line filters, couplers, power dividers, and matching circuitsAntenna concepts and radio wave propagation in complex environments RF and Microwave Engineering is an essential text for undergraduate and graduate students in electrical engineering courses including microwave engineering, basic circuit theory, electromagnetic fields, and wireless communications as well as early-stage RF practitioners and engineers.