Fundamentals of Metamaterials for High-Power RF Applications

Recent years have seen a burgeoning interest in the physics and applications of metamaterials. Briefly, metamaterials consist of a periodic array of subwavelength structures that produce an electromagnetic response not typically available in nature. Notably, composites of these structures in general exhibit both frequency and spatial dispersion, leading to a rich variety of physical phenomena such as backward wave propagation and a negative refractive index.