Accession Number : ADA261083


Title :   Electromagnetic Scattering From Dielectrics--A Two-Dimensional Integral Equation Solution


Corporate Author : ROME LAB HANSCOM AFB MA


Personal Author(s) : Silberstein, Marian


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a261083.pdf


Report Date : Apr 1991


Pagination or Media Count : 34


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.


Descriptors :   *ELECTROMAGNETIC SCATTERING , *INTEGRAL EQUATIONS , POLARIZATION , COMPUTATIONS , TWO DIMENSIONAL , FORMULATIONS , TARGETS , BODIES , DETERMINATION , CROSS SECTIONS , REGIONS , INTEGRALS , SCATTERING CROSS SECTIONS , DIELECTRICS , ACCURACY


Subject Categories : Numerical Mathematics
      Electricity and Magnetism


Distribution Statement : APPROVED FOR PUBLIC RELEASE