Description
Book SynopsisImprovements in the accuracy, computational cost, and reliability of computational techniques for high-frequency electromagnetics (including antennas, microwave devices and radar scattering applications) can be achieved through the use of 'high-order' techniques. This book outlines these techniques by presenting high-order basis functions, explaining their use, and illustrating their performance. The specific basis functions under consideration were developed by the authors, and include scalar and vector functions for use with equations such as the vector Helmholtz equation and the electric field integral equation.
The book starts by considering the approximation of scalar functions, and explores the error in some of those representations. Singular functions (those that are unbounded) are also considered, since these often arise in practical EM problems. The authors then discuss the approximation of vector functions, and summarize the various classes of vector basis functions that have been used by the professional community. Following this, they present higher-order basis functions for the most common cell shapes used in finite element analysis procedures. Finally, they consider some of the implementation details associated with the use of these functions for integral equation/method of moments formulations and differential equation/finite element method approaches.
This book provides an essential introduction to these techniques for researchers, graduate students and practicing professionals in the discipline of computational electromagnetics.
Trade Review'Higher-Order Techniques in Computational Electromagnetics caters to the needs of serious researchers, programmers, and scientists in the field of computational electromagnetics (CEM). The authors are Prof. Roberto D. Graglia of the Politecnico di Torino in Italy and Prof. Andrew F. Peterson of the Georgia Institute of Technology in Atlanta, who are both top-notch experts on this subject. This is the fifth title in the Mario Boella Series on Electromagnetism, published by a collaboration between the Institution of Engineering and Technology and SciTech Publishing. The series editor is Prof. Piergiorgio (George) L.E. Uslenghi, who contributed a foreword to the book. With almost 400 pages of encyclopedic information, this is a full-size book containing a lot of rigorous and useful information - it's not bedtime reading! It is a good reference book and will be kept on a conveniently accessible shelf of every active CEM researcher's bookcase.'
-- Levent Gürel * IEEE Antennas and Propagation Magazine *
Table of Contents
- Chapter 1: Interpolation, Approximation, and Error in One Dimension
- Chapter 2: Scalar Interpolation in Two and Three Dimensions
- Chapter 3: Representation of Vector Fields in Two and Three Dimensions Using Low Degree Polynomials
- Chapter 4: Interpolatory Vector Bases of Arbitrary Order
- Chapter 5: Hierarchical Bases
- Chapter 6: The Numerical Solution of Integral and Differential Equations
- Chapter 7: An Introduction to High Order Bases for Singular Fields
