Provides readers an understanding of the basic physics underlying meta-materials, providing a powerful tool for analyzing their electromagnetic properties. Periodic Structures: Mode-Matching Approach and Applications in Electromagnetic Engineering presents the scattering and guiding characteristics of periodic structures using the mode-matching approach and their applications in electromagnetic engineering. The book is structured so that the first three chapters provide an introduction and prepare the reader for chapters 4 to 6, which expand the formulations to electromagnetic and optical structures applicable to practical device applications. The last chapters cover very recent research topics in electromagnetics and optics. Provides an analytic approach to describing the operation of photonic crystals and related periodic structures. Covers guided and leaky mode propagation in periodic surroundings, from fundamentals to practical device applications. Demostrates formulation of the periodic system and applications to practical electromagnetic / optical devices, even further to metamaterials. Introduces the evolution of periodic structures and their applications in microwave, millimeter wave and THz. Written by a high-impact author in electromagnetics and optics. Contains mathematical derivations which can be applied directly to MATLAB programs.