Electromagnetic Simulation Techniques Based on the FDTD Method

Bridges the gap between FDTD theory and the implementation of practical simulation techniques

This is the first publication that guides readers step by step through the implementation of electromagnetic simulation techniques based on FDTD methods. These simulation techniques serve as an essential bridge between FDTD methods and their applications. Moreover, the book helps readers better understand the underlying logic of FDTD methods so that they can design FDTD projects using either commercial electromagnetic software packages or their own codes in order to solve practical engineering problems.

The book begins with two chapters that introduce the basic concepts of the 3-D Cartesian FDTD method, followed by discussions of advanced FDTD methods such as conformal techniques, dispersive media, circuit elements, and near-to-far field transformation. Next, the book:
* Presents basic concepts of parallel processing techniques and systems, including parallel FDTD techniques and systems
* Explores simulation techniques based on FDTD methods
* Illustrates practical simulation techniques using engineering applications

Introduces advanced simulation techniques

Each chapter concludes with references to help readers investigate particular topics in greater depth. Each chapter also includes problem sets that challenge readers to put their new FDTD and simulation skills into practice.

By bridging the gap between FDTD theory and practical simulation techniques, this publication is an invaluable guide for students and engineers who need to solve a wide range of design problems in RF, antenna, and microwave engineering.

While books exist on FDTD method and code development techniques, this is the first text to focus on the simulation technique, which has the same importance as the FDTD method.  Simulation technique serves as the bridge between the FDTD method and applications. This book helps readers to undertstand FDTD method and design FDTD projects for practical problems, using either commercial EM software packages or homegrown codes.

Preface. Introduction to FDTD Method. 1.1 FDTD Method. 1.2 Numerical Dispersion. 1.3 Stability Analysis. 1.4 Boundary Conditions. References. Advanced FDTD Method. 2.1 Conformal Techniques for PEC Objects. 2.2 Conformal Technique for Dielectric Objects. 2.3 Dispersive Media. 2.4 Circuit Parameters. 2.5 Power Analysis. 2.6 Near-to-Far Field Transformation. References. Parallel Computing Techniques. 3.1 Introduction to Parallel Processing Techniques. 3.1.1 OpenMP. 3.1.2 MPI Library. 3.1.3 MPICH. 3.1.4 Programming Example. 3.2 Parallel FDTD Techniques. 3.2.1 Introduction to Parallel FDTD Method. 3.2.2 Job Assignment Technique. 3.3 Domain Decomposition Technique. 3.4 Parallel Processing Systems. 3.5 Excitation and Result Collection. References. Electromagnetic Simulation Techniques. 4.1 Introduction to Simulation Techniques. 4.2 3-D Modeling Techniques. 4.3 Import CAD Models. 4.4 Mesh Design. 4.5 Excitation and Pulse Design. 4.6 Output Design. 4.7 Domain and Boundary Condition Setting. 4.8 Stability Characteristic of Absorbing Boundary. 4.9 Project Pre-processing Technique. 4.10 Job Submission. References. Illustrative Engineering Applications. 5.1 2-D Problem. 5.2 Dipole Antenna. 5.3 Rectangular Waveguide. 5.4 RCS of PEC and Dielectric Spheres. 5.5 Antennas. 5.6 Microwave Circuits. 5.7 Electromagnetic Interference. 5.8 Electronic Bandgap Structure. 5.9 RFID. 5.10 Standard SAR Test. 5.11 Bio-Electromagnetic. 5.12 Helix Antennas. 5.13 Multiple Port Scan Problems. 5.14 Antenna Array. 5.15 Multiscale Problem. References. Comprihensive Consideration for FDTD Simulation. 6.1 Compute Resource Estimation. 6.2 Mesh Design. 6.3 Excitation Design. 6.4 Simulation Termination. 6.5 Parallel Processing Design. References. Index.