Search Results - "Wilton, D. R."

Efficient computation of the 3D Green’s function for the Helmholtz operator for a linear array of point sources using the Ewald method by Capolino, F., Wilton, D.R., Johnson, W.A.

“…The Ewald method is applied to accelerate the evaluation of the Green’s function (GF) of an infinite equispaced linear array of point sources with linear…”
Get full text

A Multi-Resolution Moment Method for Wire-Surface Objects by Vipiana, F, Vecchi, G, Wilton, D R

“…We present a multi-resolution (MR) basis for the method of moments (MoM) analysis of the electric field integral equation (EFIE) for fully arbitrary 3-D…”
Get full text

Mode excitation from sources in two-dimensional EBG waveguides using the array scanning method by Capolino, F., Jackson, D.R., Wilton, D.R.

“…An efficient semianalytical algorithm for the evaluation of the field and modal excitation by a line source in a two-dimensional electromagnetic bandgap (EBG)…”
Get full text

A fast MoM solution for large arrays: Green's function interpolation with FFT by Fasenfest, B.J, Capolino, F, Wilton, D.R, Jackson, D.R, Champagne, N.J

“…A new type of fast method of moments (MoM) solution scheme for large arrays is developed using standard basis functions. Both fill and solve times are improved…”
Get full text

Numerical evaluation of singular and near-singular potential Integrals by Khayat, M.A., Wilton, D.R.

“…A simple and efficient numerical procedure using a singularity cancellation scheme is presented for evaluating singular and near-singular potential integrals…”
Get full text

A Singularity Cancellation Technique for Weakly Singular Integrals on Higher Order Surface Descriptions by Nair, N. V., Pray, A. J., Villa-Giron, J., Shanker, B., Wilton, D. R.

“…Accurate integration of singular and near-singular functions is critical to the accuracy of the method of moments solution to surface integral equations. While…”
Get full text

Transient scattering by conducting surfaces of arbitrary shape by Rao, S.M., Wilton, D.R.

“…The time-domain electric field integral equation (EFIE) is used along with the method of moments to develop a simple and efficient numerical procedure for…”
Get full text

Analysis of directive radiation from a line source in a metamaterial slab with low permittivity by Lovat, G., Burghignoli, P., Capolino, F., Jackson, D.R., Wilton, D.R.

“…In this paper an investigation is presented of metamaterial structures excited by a line source aimed at producing narrow directive beams. The structure under…”
Get full text

Computational aspects of finite element modeling in EEG source localization by Awada, K.A., Jackson, D.R., Williams, J.T., Wilton, D.R., Baumann, S.B., Papanicolaou, A.C.

“…A comparison is made of two different implementations of the finite element method (FEM) for calculating the potential due to dipole sources in…”
Get full text

Efficient computation of the 2-D Green's function for 1-D periodic structures using the Ewald method by Capolino, F., Wilton, D.R., Johnson, W.A.

“…The Ewald method is applied to accelerate the evaluation of the Green's function of an infinite periodic phased array of line sources. The Ewald representation…”
Get full text

Effect of conductivity uncertainties and modeling errors on EEG source localization using a 2-D model by Awada, K.A., Jackson, D.R., Baumann, S.B., Williams, J.T., Wilton, D.R., Fink, P.W., Prasky, B.R.

“…This paper presents a sensitivity study electroencephalography-based source localization due errors in the head-tissue conductivities and to errors in modeling…”
Get full text

Directive Leaky-Wave Radiation From a Dipole Source in a Wire-Medium Slab by Burghignoli, P., Lovat, G., Capolino, F., Jackson, D.R., Wilton, D.R.

“…Radiation features are studied for a grounded wire-medium slab excited by a simple canonical source, i.e., a horizontal electric dipole. For the first time, an…”
Get full text

Comparison of Methods for Calculating the Field Excited by a Dipole Near a 2-D Periodic Material by Capolino, F., Jackson, D.R., Wilton, D.R., Felsen, L.B.

“…A comparison of methods for calculating the field from a single dipole source in the proximity of an infinite periodic artificial material (PAM) is given. A…”
Get full text

A tetrahedral modeling method for electromagnetic scattering by arbitrarily shaped inhomogeneous dielectric bodies by Schaubert, D., Wilton, D., Glisson, A.

“…A method for calculating the electromagnetic scattering from and internal field distribution of arbitrarily shaped, inhomogeneous, dielectric bodies is…”
Get full text

Evaluation and integration of the thin wire kernel by Wilton, D.R., Champagne, N.J.

“…New approaches for numerically computing the thin wire kernel and wire potential integrals are presented. The singular behavior of the kernel integral is…”
Get full text

Fundamental properties of the field at the interface between air and a periodic artificial material excited by a line source by Capolino, F., Jackson, D.R., Wilton, D.R.

“…An efficient algorithm based on a moment-method formulation is presented for the evaluation of the field produced by a line source at the interface between an…”
Get full text

Automatic Loop-Tree Scheme for Arbitrary Conducting Wire-Surface Structures by Vipiana, F., Vecchi, G., Wilton, D.R.

“…At very low frequencies, the electric field integral equation discretization requires the extraction of the solenoidal part of the current to circumvent…”
Get full text

Higher order interpolatory vector bases for computational electromagnetics by Graglia, R.D., Wilton, D.R., Peterson, A.F.

“…Low-order vector basis functions compatible with the Nedelec (1980) representations are widely used for electromagnetic field problems. Higher-order functions…”
Get full text

Automatic MoM Source Integral Quadrature Selection via a Machine Learning Approach by Martin, V. F., Ricci, M., Wilton, D. R., Johnson, W. A., Vipiana, F.

“…In this paper, a new technique, based on machine learning (ML) and dimensionality reduction, is proposed for drastically improving the performance in the…”
Get full text

A Survey of Progress in the Numerical Evaluation of Singular and Near-Singular Integrals by Wilton, D.R., Vipiana, F., Johnson, W.A.

“…Given the close connection between electrostatic and gravitational potentials, it can be argued that interest in evaluating singular integrals dates back to…”
Get full text