Electromagnetic scattering from two parallel 2D targets arbitrarily located in a Gaussian beam |
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| Authors: | Wang Yun-Hu Guo Li-Xin and Wu Qiong |
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| Affiliation: | School of Science, Xidian University, Xi'an 710071, China |
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| Abstract: | In this paper based on the equivalence principle and the reciprocity theorem, the
scattered field up to second-order by two parallel 2D targets arbitrarily located in
a Gaussian beam is considered. The first-order solution can easily be obtained by
calculating the scattered field from isolated targets when illuminated by a Gaussian
beam. However, because of the difficulty in formulating the couple scattering field,
it is almost impossible to find an analytical solution for the second-order
scattered field if the shapes of 2D targets are not canonical geometries. In order
to overcome this problem, in this paper, the second-order solution is derived by
using the technique based on the reciprocity theorem and the equivalence principle.
Meanwhile, the relation between the secondary scattered field from target #1 and
target {\#}2 is obtained. Specifically, the bi- and mono-static scattering of
Gaussian beam by two parallel adjacent inhomogeneous plasma-coated conducting
circular cylinders is calculated and the dependence of attenuation of the scattering
width on the thickness of the coated layer, electron number density, collision
frequency and radar frequency is discussed in detail. |
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| Keywords: | reciprocity theorem equivalence theorem electromagnetic scattering inhomogeneous plasma-coated conducting cylinders Gaussian beam |
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