Scattering Analysis Of Periodic Structures Using Finite Difference Time Domain Method

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Scattering Analysis of Periodic Structures Using Finite-Difference Time-Domain

Author : Khaled ElMahgoub
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1608458148
Total Pages : 142 pages
Book Rating : 4.6/5 (84 download)

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Book Synopsis Scattering Analysis of Periodic Structures Using Finite-Difference Time-Domain by : Khaled ElMahgoub

Download or read book Scattering Analysis of Periodic Structures Using Finite-Difference Time-Domain written by Khaled ElMahgoub and published by Morgan & Claypool Publishers. This book was released on 2012-05-01 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Periodic structures are of great importance in electromagnetics due to their wide range of applications such as frequency selective surfaces (FSS), electromagnetic band gap (EBG) structures, periodic absorbers, meta-materials, and many others. The aim of this book is to develop efficient computational algorithms to analyze the scattering properties of various electromagnetic periodic structures using the finite-difference time-domain periodic boundary condition (FDTD/PBC) method. A new FDTD/PBC-based algorithm is introduced to analyze general skewed grid periodic structures while another algorithm is developed to analyze dispersive periodic structures. Moreover, the proposed algorithms are successfully integrated with the generalized scattering matrix (GSM) technique, identified as the hybrid FDTD-GSM algorithm, to efficiently analyze multilayer periodic structures. All the developed algorithms are easy to implement and are efficient in both computational time and memory usage. These algorithms are validated through several numerical test cases. The computational methods presented in this book will help scientists and engineers to investigate and design novel periodic structures and to explore other research frontiers in electromagnetics. Table of Contents: Introduction / FDTD Method and Periodic Boundary Conditions / Skewed Grid Periodic Structures / Dispersive Periodic Structures / Multilayered Periodic Structures / Conclusions

Scattering Analysis of Periodic Structures using Finite-Difference Time-Domain Method

Author : Khaled ElMahgoub
Publisher : Springer Nature
ISBN 13 : 3031017137
Total Pages : 122 pages
Book Rating : 4.0/5 (31 download)

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Book Synopsis Scattering Analysis of Periodic Structures using Finite-Difference Time-Domain Method by : Khaled ElMahgoub

Download or read book Scattering Analysis of Periodic Structures using Finite-Difference Time-Domain Method written by Khaled ElMahgoub and published by Springer Nature. This book was released on 2022-06-01 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Periodic structures are of great importance in electromagnetics due to their wide range of applications such as frequency selective surfaces (FSS), electromagnetic band gap (EBG) structures, periodic absorbers, meta-materials, and many others. The aim of this book is to develop efficient computational algorithms to analyze the scattering properties of various electromagnetic periodic structures using the finite-difference time-domain periodic boundary condition (FDTD/PBC) method. A new FDTD/PBC-based algorithm is introduced to analyze general skewed grid periodic structures while another algorithm is developed to analyze dispersive periodic structures. Moreover, the proposed algorithms are successfully integrated with the generalized scattering matrix (GSM) technique, identified as the hybrid FDTD-GSM algorithm, to efficiently analyze multilayer periodic structures. All the developed algorithms are easy to implement and are efficient in both computational time and memory usage. These algorithms are validated through several numerical test cases. The computational methods presented in this book will help scientists and engineers to investigate and design novel periodic structures and to explore other research frontiers in electromagnetics. Table of Contents: Introduction / FDTD Method and Periodic Boundary Conditions / Skewed Grid Periodic Structures / Dispersive Periodic Structures / Multilayered Periodic Structures / Conclusions

Analysis of Periodic Structures Using Finite-difference Time-domain Method

Author : Khaled ElMahgoub
Publisher :
ISBN 13 :
Total Pages : 318 pages
Book Rating : 4.:/5 (773 download)

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Book Synopsis Analysis of Periodic Structures Using Finite-difference Time-domain Method by : Khaled ElMahgoub

Download or read book Analysis of Periodic Structures Using Finite-difference Time-domain Method written by Khaled ElMahgoub and published by . This book was released on 2010 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Periodic structures are of great importance in electromagnetics these days due to their wide range of applications such as frequency selective surfaces (FSS), electromagnetic band gap, periodic absorbers, metamaterials and many others. The aim of this work is to develop several algorithms to analyze different types of electromagnetic periodic structures using the constant horizontal wavenumber finite-difference time-domain periodic boundary condition (FDTD/PBC). A new FDTD/PBC approach is introduced to analyze the scattering properties of general skewed grid periodic structures. The approach is simple to implement and efficient in terms of both computational time and memory usage. In addition, an efficient hybrid FDTD generalized scattering matrix (GSM) technique is developed to analyze multilayer periodic structure. The technique is based on the FDTD constant horizontal wavenumber approach to compute the scattering parameters of each layer. The new technique saves computational time and storage memory. Moreover, a new algorithm is developed to analyze dispersive periodic structures, the algorithm is easy to implement and efficient in both computational time and memory usage. All the developed algorithms are validated through several numerical test cases.

Finite-Difference Time-Domain Analysis of Periodic Anisotropic Media

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (656 download)

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Book Synopsis Finite-Difference Time-Domain Analysis of Periodic Anisotropic Media by :

Download or read book Finite-Difference Time-Domain Analysis of Periodic Anisotropic Media written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Finite-Difference Time-Domain (FDTD) method is a numerical technique for solving electromagnetic propagation and scattering problems. The FDTD method has been one of the most popular numerical tools in the computational electromagnetics since Kane Yee proposed his efficient and stable algorithm, often called the Yee algorithm. Recent rapid development in computer technologies in the last two decades allows us to have more power in computation and memory capacity, which overcomes the computationally intensive nature, the main hindrance of wide use of the FDTD method. Still, emerging new applications need modification to the original FDTD algorithm. For the applications of periodic structures such as gratings and photonic crystals, the FDTD method can be much more efficient and accurate by taking the advantage of the periodicity of structures. The simulation space can be dramatically reduced into only one unit cell by enforcing periodic boundary conditions (PBC). An efficient way of implementing PBCs is the split-field update method. The main advantage of the split-field FDTD method is its capability of wideband simulation at oblique incidence. However, the previous works were limited to materials that are either isotropic or that have diagonal tensors. Here we present a modified FDTD algorithm for periodic structures in more general anisotropic media, which incorporates the nondiagonal permittivity tensor. PBCs are implemented by using the split-field technique. Validation of the new FDTD method is done by applying it for problems of different structures and comparing the results from FDTD simulations with other analytical or numerical solutions. We report a rigorous numerical analysis of the Polarization Grating (PG) at the first time. Diffraction properties such as the diffraction efficiency and the polarization selectivity of each diffraction order are analyzed for all kinds of PGs. We discuss the effect of the grating regimes and the finite grating width on t.

Analysis of Periodic Structures for Scattering and Radiation Using Tangentially Continuous Vector Finite Element Method

Author : Yu Zhu
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (47 download)

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Book Synopsis Analysis of Periodic Structures for Scattering and Radiation Using Tangentially Continuous Vector Finite Element Method by : Yu Zhu

Download or read book Analysis of Periodic Structures for Scattering and Radiation Using Tangentially Continuous Vector Finite Element Method written by Yu Zhu and published by . This book was released on 1998 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Finite Difference Time Domain Model for Scattering by Dispersive Media

Author : Christopher S. Armao
Publisher :
ISBN 13 :
Total Pages : 302 pages
Book Rating : 4.:/5 (426 download)

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Book Synopsis A Finite Difference Time Domain Model for Scattering by Dispersive Media by : Christopher S. Armao

Download or read book A Finite Difference Time Domain Model for Scattering by Dispersive Media written by Christopher S. Armao and published by . This book was released on 1999 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Finite-difference Time-domain Modeling of Oblique Indidence Scattering from Periodic Surfaces

Author : Yin-Chun Andrew Kao
Publisher :
ISBN 13 :
Total Pages : 201 pages
Book Rating : 4.:/5 (381 download)

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Book Synopsis Finite-difference Time-domain Modeling of Oblique Indidence Scattering from Periodic Surfaces by : Yin-Chun Andrew Kao

Download or read book Finite-difference Time-domain Modeling of Oblique Indidence Scattering from Periodic Surfaces written by Yin-Chun Andrew Kao and published by . This book was released on 1997 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Time-Domain Scattering

Author : P. A. Martin
Publisher : Cambridge University Press
ISBN 13 : 1108835597
Total Pages : 265 pages
Book Rating : 4.1/5 (88 download)

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Book Synopsis Time-Domain Scattering by : P. A. Martin

Download or read book Time-Domain Scattering written by P. A. Martin and published by Cambridge University Press. This book was released on 2021-06-24 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first thorough synthesis of methods for solving time-domain scattering problems, covering both theoretical and computational aspects.

Numerical Methods for the Analysis of Scattering from Nonplanar Periodic Structures

Author : Kawthar Abd El Hamid Zaki
Publisher :
ISBN 13 :
Total Pages : 342 pages
Book Rating : 4.:/5 (21 download)

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Book Synopsis Numerical Methods for the Analysis of Scattering from Nonplanar Periodic Structures by : Kawthar Abd El Hamid Zaki

Download or read book Numerical Methods for the Analysis of Scattering from Nonplanar Periodic Structures written by Kawthar Abd El Hamid Zaki and published by . This book was released on 1969 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Advances in Time-Domain Computational Electromagnetic Methods

Author : Qiang Ren
Publisher : John Wiley & Sons
ISBN 13 : 1119808375
Total Pages : 724 pages
Book Rating : 4.1/5 (198 download)

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Book Synopsis Advances in Time-Domain Computational Electromagnetic Methods by : Qiang Ren

Download or read book Advances in Time-Domain Computational Electromagnetic Methods written by Qiang Ren and published by John Wiley & Sons. This book was released on 2022-11-15 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover state-of-the-art time domain electromagnetic modeling and simulation algorithms Advances in Time-Domain Computational Electromagnetic Methods delivers a thorough exploration of recent developments in time domain computational methods for solving complex electromagnetic problems. The book discuses the main time domain computational electromagnetics techniques, including finite-difference time domain (FDTD), finite-element time domain (FETD), discontinuous Galerkin time domain (DGTD), time domain integral equation (TDIE), and other methods in electromagnetic, multiphysics modeling and simulation, and antenna designs. The book bridges the gap between academic research and real engineering applications by comprehensively surveying the full picture of current state-of-the-art time domain electromagnetic simulation techniques. Among other topics, it offers readers discussions of automatic load balancing schemes for DG DG-FETD/SETD methods and convolution quadrature time domain integral equation methods for electromagnetic scattering. Advances in Time-Domain Computational Electromagnetic Methods also includes: Introductions to cylindrical, spherical, and symplectic FDTD, as well as FDTD for metasurfaces with GSTC and FDTD for nonlinear metasurfaces Explorations of FETD for dispersive and nonlinear media and SETD-DDM for periodic/quasi-periodic arrays Discussions of TDIE, including explicit marching-on-in-time solvers for second-kind time domain integral equations, TD-SIE DDM, and convolution quadrature time domain integral equation methods for electromagnetic scattering Treatments of deep learning, including time domain electromagnetic forward and inverse modeling using a differentiable programming platform Ideal for undergraduate and graduate students studying the design and development of various kinds of communication systems, as well as professionals working in these fields, Advances in Time-Domain Computational Electromagnetic Methods is also an invaluable resource for those taking advanced graduate courses in computational electromagnetic methods and simulation techniques.

Finite Difference Time Domain Simulation of Scattering from Submerged Elastic Bodies

Author : Xun Lei
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.:/5 (384 download)

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Book Synopsis Finite Difference Time Domain Simulation of Scattering from Submerged Elastic Bodies by : Xun Lei

Download or read book Finite Difference Time Domain Simulation of Scattering from Submerged Elastic Bodies written by Xun Lei and published by . This book was released on 1997 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Finite-Difference Time-Domain Method for Electromagnetics with MATLAB® Simulations

Author : Atef Z. Elsherbeni
Publisher : IET
ISBN 13 : 1613531753
Total Pages : 559 pages
Book Rating : 4.6/5 (135 download)

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Book Synopsis The Finite-Difference Time-Domain Method for Electromagnetics with MATLAB® Simulations by : Atef Z. Elsherbeni

Download or read book The Finite-Difference Time-Domain Method for Electromagnetics with MATLAB® Simulations written by Atef Z. Elsherbeni and published by IET. This book was released on 2015-11-25 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is one of the best books on computational electromagnetics both for graduate students focusing on electromagnetics problems and for practicing engineering professionals in industry and government. It is designed as an advanced textbook and self-study guide to the FDTD method of solving EM problems and simulations. This latest edition has been expanded to include 5 entirely new chapters on advanced topics in the mainstream of FDTD practice. In addition to advanced techniques it also includes applications and examples, and some 'tricks and traps' of using MATLAB to achieve them. Compared to the previous version the second edition is more complete and is a good reference for someone who is performing FDTD research. This book is part of the ACES Series on Computational Electromagnetics and Engineering. Supplementary material can be found at the IET's ebook page Supplementary materials for professors are available upon request via email to [email protected].

Computational Nanotechnology Using Finite Difference Time Domain

Author : Sarhan M. Musa
Publisher : CRC Press
ISBN 13 : 1466583622
Total Pages : 402 pages
Book Rating : 4.4/5 (665 download)

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Book Synopsis Computational Nanotechnology Using Finite Difference Time Domain by : Sarhan M. Musa

Download or read book Computational Nanotechnology Using Finite Difference Time Domain written by Sarhan M. Musa and published by CRC Press. This book was released on 2017-12-19 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Finite Difference Time Domain (FDTD) method is an essential tool in modeling inhomogeneous, anisotropic, and dispersive media with random, multilayered, and periodic fundamental (or device) nanostructures due to its features of extreme flexibility and easy implementation. It has led to many new discoveries concerning guided modes in nanoplasmonic waveguides and continues to attract attention from researchers across the globe. Written in a manner that is easily digestible to beginners and useful to seasoned professionals, Computational Nanotechnology Using Finite Difference Time Domain describes the key concepts of the computational FDTD method used in nanotechnology. The book discusses the newest and most popular computational nanotechnologies using the FDTD method, considering their primary benefits. It also predicts future applications of nanotechnology in technical industry by examining the results of interdisciplinary research conducted by world-renowned experts. Complete with case studies, examples, supportive appendices, and FDTD codes accessible via a companion website, Computational Nanotechnology Using Finite Difference Time Domain not only delivers a practical introduction to the use of FDTD in nanotechnology but also serves as a valuable reference for academia and professionals working in the fields of physics, chemistry, biology, medicine, material science, quantum science, electrical and electronic engineering, electromagnetics, photonics, optical science, computer science, mechanical engineering, chemical engineering, and aerospace engineering.

Electromagnetic Theory and Applications for Photonic Crystals

Author : Kiyotoshi Yasumoto
Publisher : CRC Press
ISBN 13 : 1420026623
Total Pages : 464 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Electromagnetic Theory and Applications for Photonic Crystals by : Kiyotoshi Yasumoto

Download or read book Electromagnetic Theory and Applications for Photonic Crystals written by Kiyotoshi Yasumoto and published by CRC Press. This book was released on 2018-10-03 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic technology promises much faster computing, massive parallel processing, and an evolutionary step in the digital age. The search continues for devices that will enable this paradigm, and these devices will be based on photonic crystals. Modeling is a key process in developing crystals with the desired characteristics and performance, and Electromagnetic Theory and Applications for Photonic Crystals provides the electromagnetic-theoretical models that can be effectively applied to modeling photonic crystals and related optical devices. The book supplies eight self-contained chapters that detail various analytical, numerical, and computational approaches to the modeling of scattering and guiding problems. For each model, the chapter begins with a brief introduction, detailed formulations of periodic structures and photonic crystals, and practical applications to photonic crystal devices. Expert contributors discuss the scattering matrix method, multipole theory of scattering and propagation, model of layered periodic arrays for photonic crystals, the multiple multipole program, the mode-matching method for periodic metallic structures, the method of lines, the finite-difference frequency-domain technique, and the finite-difference time-domain technique. Based on original research and application efforts, Electromagnetic Theory and Applications for Photonic Crystals supplies a broad array of practical tools for analyzing and designing devices that will form the basis for a new age in computing.

Rapid Analysis of Scattering from Periodic Dielectric Structures Using Accelerated Cartesian Expansions

Author :
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (951 download)

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Book Synopsis Rapid Analysis of Scattering from Periodic Dielectric Structures Using Accelerated Cartesian Expansions by :

Download or read book Rapid Analysis of Scattering from Periodic Dielectric Structures Using Accelerated Cartesian Expansions written by and published by . This book was released on 2012 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, the analysis of fields in periodic dielectric structures arise in numerous applications of recent interest, ranging from photonic bandgap structures and plasmonically active nanostructures to metamaterials. To achieve an accurate representation of the fields in these structures using numerical methods, dense spatial discretization is required. This, in turn, affects the cost of analysis, particularly for integral-equation-based methods, for which traditional iterative methods require [Omicron]([Nu]2) operations, [Nu] being the number of spatial degrees of freedom. In this paper, we introduce a method for the rapid solution of volumetric electric field integral equations used in the analysis of doubly periodic dielectric structures. The crux of our method is the accelerated Cartesian expansion algorithm, which is used to evaluate the requisite potentials in [Omicron]([Nu]) cost. Results are provided that corroborate our claims of acceleration without compromising accuracy, as well as the application of our method to a number of compelling photonics applications.

Advanced FDTD Methods

Author : Wenhua Yu
Publisher : Artech House
ISBN 13 : 1608071774
Total Pages : 267 pages
Book Rating : 4.6/5 (8 download)

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Book Synopsis Advanced FDTD Methods by : Wenhua Yu

Download or read book Advanced FDTD Methods written by Wenhua Yu and published by Artech House. This book was released on 2011 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced FDTD Methods: Parallelization, Acceleration, and Engineering Applications -- Contents -- Preface -- Chapter 1 Computational Electromagnetic Methods -- 1.1 FDTD METHOD -- 1.1.1 FDTD Update Equations -- 1.1.2 Stability Analysis -- 1.1.3 Boundary Conditions -- 1.2 METHOD OF MOMENTS -- 1.3 FINITE ELEMENT METHOD -- 1.3.1 Scalar Formulation -- 1.3.2 Vector Formulation -- 1.4 FINITE INTEGRATION TECHNIQUE -- References -- Chapter 2 FDTD Optimization and Acceleration -- 2.1 INTRODUCTION TO CPU ARCHITECTURE -- 2.2 SSE INSTRUCTION SET -- 2.3 CACHE OPTIMIZATION -- 2.4 TASK PARALLELIZATION AND BUNDLING -- 2.5 PREFETCH -- 2.6 READING OR WRITING COMBINATION -- 2.7 MATERIAL LOOP-UP TABLE -- 2.8 NUMA OPTIMIZATION -- 2.9 IMPLEMENTATION OF VALU FDTD METHOD -- References -- Chapter 3 Parallel FDTD Method and Systems -- 3.1 PARALLEL FDTD METHOD -- 3.2 OPENMP FOR MULTICORE PROCESSORS -- 3.3 MPI TECHNIQUE -- 3.4 NETWORK CARD, SWITCH, AND CABLE -- References -- Chapter 4 Electromagnetic Simulation Techniques -- 4.1 MESH GENERATION TECHNIQUES -- 4.2 BASIC SIMULATION PROCEDURE -- 4.3 DIPOLE ANTENNA -- 4.4 VIVALDI ANTENNA SIMULATION -- 4.5 BANDED MICROWAVE CONNECTOR -- 4.6 PARALLEL LINES -- 4.7 TWO-PORT ANTENNA -- 4.8 SLOT COUPLING -- 4.9 MICROWAVE FILTER -- 4.10 OPTIMIZATION AND PARAMETER SCAN -- 4.11 PERIODIC STRUCTURE SIMULATION -- 4.12 GROUND PENETRATING RADAR MODEL -- 4.13 MICROWAVE CONNECTOR -- References -- Chapter 5 EM Simulation Software Benchmarks -- 5.1 BASIC STEPS IN EM SIMULATION -- 5.1.1 HFSS -- 5.1.2 CST -- 5.1.3 FEKO -- 5.1.4 GEMS -- 5.2 HARDWARE PLATFORMS -- 5.3 PATCH ANTENNA -- 5.4 VIVALDI ANTENNA -- 5.5 SCATTERING OF DIELECTRIC SPHERE -- 5.6 CELL PHONE ANTENNA -- 5.7 ELECTROMAGNETIC BANDGAP STRUCTURE -- 5.8 STANDARD SAR TEST -- 5.9 WAVEGUIDE FILTER -- References -- Chapter 6 Large Multiscale Problem Solving -- 6.1 RADIO FREQUENCY PROTECTION.

Double-Grid Finite-Difference Frequency-Domain (DG-FDFD) Method for Scattering from Chiral Objects

Author : Erdogan Alkan
Publisher : Springer Nature
ISBN 13 : 3031017153
Total Pages : 119 pages
Book Rating : 4.0/5 (31 download)

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Book Synopsis Double-Grid Finite-Difference Frequency-Domain (DG-FDFD) Method for Scattering from Chiral Objects by : Erdogan Alkan

Download or read book Double-Grid Finite-Difference Frequency-Domain (DG-FDFD) Method for Scattering from Chiral Objects written by Erdogan Alkan and published by Springer Nature. This book was released on 2022-05-31 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the application of the overlapping grids approach to solve chiral material problems using the FDFD method. Due to the two grids being used in the technique, we will name this method as Double-Grid Finite Difference Frequency-Domain (DG-FDFD) method. As a result of this new approach the electric and magnetic field components are defined at every node in the computation space. Thus, there is no need to perform averaging during the calculations as in the aforementioned FDFD technique [16]. We formulate general 3D frequency-domain numerical methods based on double-grid (DG-FDFD) approach for general bianisotropic materials. The validity of the derived formulations for different scattering problems has been shown by comparing the obtained results to exact and other solutions obtained using different numerical methods. Table of Contents: Introduction / Chiral Media / Basics of the Finite-Difference Frequency-Domain (FDFD) Method / The Double-Grid Finite-Difference Frequency-Domain (DG-FDFD) Method for Bianisotropic Medium / Scattering FromThree Dimensional Chiral Structures / ImprovingTime and Memory Efficiencies of FDFD Methods / Conclusions / Appendix A: Notations / Appendix B: Near to Far FieldTransformation