This book provides rigorous mathematical models to enable understanding of the propagation characteristics of electromagnetic fields. The author also describes the configuration of real, existing propagation modes of the microwave line by means of accurate numerical methods. Coverage also includes a comprehensive introduction to microwave concepts and the design of active and passive microwave components. The interactive programs package generically named "Microwave Solutions", available and stored in cloud repository, illustrates its modular use and implementation, and facilitates the integration of microwave components, circuits, and applications. This book is a valuable source for anyone interested in broadening their knowledge of electromagnetism and microwave circuit design. Provides readers rigorous mathematical models of propagation characteristics of the electromagnetic field Demonstrates methods on complicated structures, such as coupled microstrip lines and inhomogeneous structures Links to free, downloadable software facilitating the integration of microwave components, circuits and applications .