New Foundations for Applied Electromagnetics:: The Spatial Structure of Fields

This comprehensive new resource focuses on applied electromagnetics and takes readers beyond the conventional theory with the use of contemporary mathematics to improve the practical use of electromagnetics in emerging areas of field communications, wireless power transfer, metamaterials, MIMO and direction-of-arrival systems. The book explores the existing and novel theories and principles of electromagnetics in order to help engineers analyze and design devices for today#x92;s applications in wireless power transfers, NFC, and metamaterials. This book is organized into clear and logical sections spanning from fundamental theory, to applications, promoting clear understanding through-out. This resource presents the theory of electromagnetic near fields including chapters on reactive energy, spatial and spectral theory, the scalar antenna, and the morphogenesis of electromagnetic radiation in the near field zone. The Antenna Current Green#x92;s Function Formalism is explored with an emphasis on the foundations, the organic interrelationships between the fundamental operational modes of general antenna systems, and the spectral approach to antenna-to-antenna interactions. The book offers perspective on nonlocal metamaterials, including the material response theory, the far-field theory, and the near-field theory PART I: THE THEORY OF ELECTROMAGNETIC NEAR FIELDS. Reactive energy and the near field The spatial theory of electromagnetic fields The spectral theory of electromagnetic fields The scalar antenna near field Morphogenesis of electromagnetic radiation in the near-field zone ; PART II: THE ANTENNA CURRENT GREEN'S FUNCTION (ACGF) FORMALISM. The Antenna Current Green's Function formalism as a paradigm Fouundations of the Antenna Current Green's Function formalism Interrelationships between operational modes of general antenna systems ; PART III: NONLOCAL METAMATERIALS. General introduction and motivation Review of spatial electromagnetics (the material response theory) The far-field theory of nonlocal metamaterials The near-field of nonlocal metamaterials ; PART IV: APPLICATIONS. Basic applications of the Antenna Current Green's Function Antenna Current Green's Function as a method to compute near-field interactions Electromagnetic mutual coupling in general antenna systems Method for the analysis of localized energy in mutually-couple antenna systems Applications to MIMO and spatial diversity systems Cross correlation in antenna system: generalized approach through Green's Functions.