A K-space method of moments solution for the aperture electromagnetic fields of a circular cylindrical waveguide radiating into an anisotropic dielectric half-space

1989 ◽  
Vol 37 (2) ◽  
pp. 187-193 ◽  
Author(s):  
J.M. Jarem ◽  
F. To
Keyword(s):  
Half Space ◽  
Electromagnetic Fields ◽  
Method Of Moments ◽  
Cylindrical Waveguide ◽  
Anisotropic Dielectric ◽  
Space Method

STRONG AND WEAK FORMS OF THE METHOD OF MOMENTS AND THE COUPLED DIPOLE METHOD FOR SCATTERING OF TIME-HARMONIC ELECTROMAGNETIC FIELDS

1992 ◽  
Vol 03 (03) ◽  
pp. 583-603 ◽  
Author(s):  
AKHLESH LAKHTAKIA
Keyword(s):  
Electromagnetic Fields ◽  
Method Of Moments ◽  
Electromagnetic Scattering ◽  
Final Section ◽  
The Other ◽  
Numerical Techniques ◽  
Scattering Problems ◽  
Time Harmonic

Algorithms based on the method of moments (MOM) and the coupled dipole method (CDM) are commonly used to solve electromagnetic scattering problems. In this paper, the strong and the weak forms of both numerical techniques are derived for bianisotropic scatterers. The two techniques are shown to be fully equivalent to each other, thereby defusing claims of superiority often made for the charms of one technique over the other. In the final section, reductions of the algorithms for isotropic dielectric scatterers are explicitly given.

scholarly journals Stochastic electromagnetic field propagation— measurement and modelling

2018 ◽  
Vol 376 (2134) ◽  
pp. 20170455 ◽  
Author(s):  
Gabriele Gradoni ◽  
Johannes Russer ◽  
Mohd Hafiz Baharuddin ◽  
Michael Haider ◽  
Peter Russer ◽  
...  
Keyword(s):  
Electromagnetic Fields ◽  
Method Of Moments ◽  
Electromagnetic Wave Propagation ◽  
Poynting Vector ◽  
Wigner Functions ◽  
Electromagnetic Emissions ◽  
Tensor Formulation ◽  
Confined Media ◽  
Propagation Methods ◽  
Propagation Measurement

This paper reviews recent progress in the measurement and modelling of stochastic electromagnetic fields, focusing on propagation approaches based on Wigner functions and the method of moments technique. The respective propagation methods are exemplified by application to measurements of electromagnetic emissions from a stirred, cavity-backed aperture. We discuss early elements of statistical electromagnetics in Heaviside's papers, driven mainly by an analogy of electromagnetic wave propagation with heat transfer. These ideas include concepts of momentum and directionality in the realm of propagation through confined media with irregular boundaries. We then review and extend concepts using Wigner functions to propagate the statistical properties of electromagnetic fields. We discuss in particular how to include polarization in this formalism leading to a Wigner tensor formulation and a relation to an averaged Poynting vector. This article is part of the theme issue ‘Celebrating 125 years of Oliver Heaviside's ‘Electromagnetic Theory’’.

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