DocumentCode :
1517119
Title :
Wide-band electromagnetic scattering from a dielectric BOR buried in a layered lossy dispersive medium
Author :
Geng, Norbert ; Carin, Lawrence
Author_Institution :
Dept. of Electr. Eng., Duke Univ., Durham, NC, USA
Volume :
47
Issue :
4
fYear :
1999
fDate :
4/1/1999 12:00:00 AM
Firstpage :
610
Lastpage :
619
Abstract :
A method of moments (MoM) analysis is developed for electromagnetic scattering from a dielectric body of revolution (BOR) embedded in a layered medium (the half-space problem constituting a special case). The layered-medium parameters can be lossy and dispersive, of interest for simulating soil. To make such an analysis tractable for the wide-band (short-pulse) applications of interest here, we have employed the method of complex images to evaluate the Sommerfeld integrals characteristic of the dyadic layered-medium Green´s function. Example wide-band scattering results are presented, wherein fundamental wave phenomenology is elucidated. Of particular interest, we consider wide-band scattering from a model plastic mine, buried in soil, with the soil covered by a layer of snow
Keywords :
Green´s function methods; absorbing media; buried object detection; dielectric bodies; dispersive media; electromagnetic wave scattering; inhomogeneous media; integral equations; method of moments; military radar; radar detection; soil; weapons; MoM analysis; Sommerfeld integrals; complex images; dielectric BOR; dielectric body of revolution; dyadic layered-medium Green´s function; half-space problem; layered lossy dispersive medium; layered-medium parameters; method of moments; model plastic mine; snow; soil; wide-band electromagnetic scattering; Dielectrics; Dispersion; Electromagnetic analysis; Electromagnetic scattering; Green´s function methods; Image analysis; Moment methods; Plastics; Soil; Wideband;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/8.768799
Filename :
768799
Link To Document :
بازگشت