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Title: Electromagnetic scattering from dielectrics--a two-dimensional integral equation solution

Abstract

An accurate determination of the electromagnetic scattering cross section of many realistic targets must account for their being multi-dimensional and penetrable by the incident EM wave. An existing volume integral equation formulation of EM fields within continuous source regions is well-suited to address this problem. We simply specify the generalized source region of this formulation to be a dielectric body in which currents are induced by the incident wave, and which then re-radiates the scattered wave. The relation Etot = Einc + Escat yields a matrix equation to be solved for the unknown currents, which in turn directly determine the scattering cross section. Numerical results are presented for a homogenous, two-dimensional, rectangular target for TE and TM polarizations. The role of the source dyadic term in improving the accuracy of the scattering cross section is investigated both theoretically and numerically.... Scattering, Volume integral equations, Dielectric cylinders.

Authors:
Publication Date:
Research Org.:
Rome Lab., Hanscom AFB, MA (United States)
OSTI Identifier:
6568254
Report Number(s):
AD-A-261083/0/XAB; RL-TR-91-115
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DIELECTRIC MATERIALS; MULTILEVEL ANALYSIS; ELECTROMAGNETIC RADIATION; SCATTERING; CROSS SECTIONS; INTEGRAL EQUATIONS; MATRIX ELEMENTS; NUMERICAL SOLUTION; POLARIZATION; THEORETICAL DATA; DATA; EQUATIONS; INFORMATION; MATERIALS; NUMERICAL DATA; RADIATIONS; 661300* - Other Aspects of Physical Science- (1992-)

Citation Formats

Silberstein, M. Electromagnetic scattering from dielectrics--a two-dimensional integral equation solution. United States: N. p., 1991. Web.
Silberstein, M. Electromagnetic scattering from dielectrics--a two-dimensional integral equation solution. United States.
Silberstein, M. 1991. "Electromagnetic scattering from dielectrics--a two-dimensional integral equation solution". United States.
@article{osti_6568254,
title = {Electromagnetic scattering from dielectrics--a two-dimensional integral equation solution},
author = {Silberstein, M},
abstractNote = {An accurate determination of the electromagnetic scattering cross section of many realistic targets must account for their being multi-dimensional and penetrable by the incident EM wave. An existing volume integral equation formulation of EM fields within continuous source regions is well-suited to address this problem. We simply specify the generalized source region of this formulation to be a dielectric body in which currents are induced by the incident wave, and which then re-radiates the scattered wave. The relation Etot = Einc + Escat yields a matrix equation to be solved for the unknown currents, which in turn directly determine the scattering cross section. Numerical results are presented for a homogenous, two-dimensional, rectangular target for TE and TM polarizations. The role of the source dyadic term in improving the accuracy of the scattering cross section is investigated both theoretically and numerically.... Scattering, Volume integral equations, Dielectric cylinders.},
doi = {},
url = {https://www.osti.gov/biblio/6568254}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Apr 01 00:00:00 EST 1991},
month = {Mon Apr 01 00:00:00 EST 1991}
}

Technical Report:
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