Master powerful new modeling tools that let you quantify and represent metamaterial properties with never-before accuracy. This first-of-its-kind book brings you up to speed on breakthrough finite-difference time-domain techniques for modeling metamaterial characteristics and behaviors in electromagnetic systems. This practical resource comes complete with sample FDTD scripts to help you pave the way to new metamaterial applications and advances in antenna, microwave, and optics engineering. You get in-depth coverage of state-of-the-art FDTD modeling techniques and applications for electromagnetic bandgap (EBG) structures, left-handed metamaterials (LHMs), wire medium, metamaterials for optics, and other practical metamaterials. You find steps for computing dispersion diagrams, dealing with material dispersion properties, and verifying the left-handedness. Moreover, this comprehensive volume offers guidance for handling the unique properties possessed by metamaterials, including how to define material parameters, characterize the interface of metamaterial slabs, and quantify their spatial as well as frequency dispersion characteristics. The book also presents conformal and dispersive FDTD modeling of electromagnetic cloaks, perfect lens, and plasmonic waveguides, as well as other novel antenna, microwave, and optical applications. Over 190 illustrations support key topics throughout the book.
IntroductionWhat are Electromagnetic Metamaterials? A Historical Overview Of Electromagnetic Metamaterials. Numerical Modeling of Electromagnetic Metamaterials. Layout of Book. Fundamentals and Applications of MetamaterialsIntroduction. Bloch 's Theorem and the Dispersion Diagram. An Overview of Numerical Methods for Modeling EBG Structures. An Overview of EBG Applications. Summary. ; A BriefIntroduction to the FDTD Method for Modeling MetamaterialsIntroduction. Formulations of the Yee 's FDTD Algorithm. Courant Stability Condition (CFL condition). Other Spatial Domain Discretization Schemes. Boundary Conditions. Band Gap Calculation. Summary. ; FDTD Modeling of EBGs and their ApplicationsIntroduction. FDTD Modeling of In?nite Electromagnetic Bandgap Structures. Conformal FDTD Modeling of (Semi-)Finite EBG Structures. Design and Modeling of Millimetrewave EBG Antennas. Conclusions. ; Left-Handed Metamaterials (LHMs) and Their ApplicationsIntroduction. Effective Medium Theory and Left-handed Metamaterials. Applications of Left-Handed Metamaterials. ; Numerical Modeling of Left-Handed Material (LHM) using Dispersive FDTDIntroduction. The Effective Medium of Left-Landed Materials (LHM). Modeling of Left-Handed Metamaterials using Dispersive FDTD. Conclusions. ; FDTD Modeling and Figure-of-Merit (FOM) Analysis of Practical MetamaterialsIntroduction. EM Response of the In?nite, Doubly-Periodic DNG Slab with Plane Wave Illumination. Retrieval of Effective Material Constitutive Parameters Using the Inversion Approach. EM Response of a Finite Arti?cial-DNG Slab with Localized Beam Illumination. Figure-of-Merit (FOM) Analysis. Conclusions. ; Accurate FDTD Modeling of A Perfect LensIntroduction. Dispersive FDTD Modeling of LHMs with Spatial Averaging at the Boundaries. Numerical Implementation. Effects of Material Parameters on the Accuracy of Numerical Simulation. Effects of Switching Time. Effects of Transverse Dimensions on Image Quality. Modeling of Sub-wavelength Imaging. Conclusions. ; Spatially Dispersive FDTD Modeling of Wire MediumIntroduction. Spatial Dispersion in Wire Medium. Spatially Dispersive FDTD Formulations. Stability and Numerical Dispersion Analysis. Perfectly Matched Layer for Wire Medium Slabs. Numerical Thickness of Wire Medium Slabs. Two-Dimensional FDTD Simulations. Three-Dimensional FDTD Simulations. Experimental Veri?cations. Internal Imaging by Wire Medium Slabs. Conclusions. ; FDTD Modeling of Metamaterials for OpticsIntroduction. Dispersive FDTD Modeling of Silver-dielectric Layered Structure for Sub-wavelength Imaging. A Metamaterial Scanning Near Field Optical Microscope. FDTD Study of Guided Modes in Nano-plasmonic Waveguides. FDTD Calculation of Dispersion Diagrams. FDTD Modeling of Electromagnetic Cloaking Structures. ; Overviews and Final RemarksIntroduction. Overview of Advantages and Disadvantages of the FDTD Method in Modeling Metamaterials. Overview of Metamaterial Applications and Final Remarks. ;
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Yang Hao
Yang Hao is Professor of Antennas and Electromagnetics at Queen Mary University of London (QMUL). Over the years, he has developed several fully-integrated antenna solutions based on novel artificial materials to reduce mutual RF interference, weight, cost and system complexity for security, aerospace and healthcare applications. He coined the term 'Body-centric wireless communications', an area which refers to networking among wearable and implantable wireless sensors on the human body. He contributed to the industrial development of wireless sensors for healthcare monitoring as well as wearable and textile antennas. He currently leads several major developments in microwave metamaterials, body-centric wireless communications and is also a member of management team at the Cambridge Graphene Centre. Professor Hao has published 2 books, 7 book chapters and more than 120 journal papers. From 2010-2012, he served as a Vice Chairman for the Professional Network on Antenna and Propagations, IET and is also a board member of European School of Antennas, European Antenna Centre of Excellence. He is an associate editor for both IEEE TAP and AWPL. In 2013, Professor Hao received the prestigious Wolfson Research Merit Award from the Royal Society, UK. He is a Fellow of IEEE, IET and ERA Foundation.