@Article{CiCP-15-895,
author = {},
title = {Radar Cross Section Reduction of a Cavity in the Ground Plane},
journal = {Communications in Computational Physics},
year = {2014},
volume = {15},
number = {4},
pages = {895--910},
abstract = {<p style="text-align: justify;">This paper investigates the reduction of backscatter radar cross section (RCS)
for a rectangular cavity embedded in the ground plane. The bottom of the cavity is
coated by a thin, multilayered radar absorbing material (RAM) with possibly different
permittivities. The objective is to minimize the backscatter RCS by the incidence
of a plane wave over a single or a set of incident angles. By formulating the scattering
problem as a Helmholtz equation with artificial boundary condition, the gradient
with respect to the material permittivities is determined efficiently by the adjoint state
method, which is integrated into a nonlinear optimization scheme. Numerical example
shows the RCS may be significantly reduced.</p>},
issn = {1991-7120},
doi = {https://doi.org/10.4208/cicp.090413.130913s},
url = {http://global-sci.org/intro/article_detail/cicp/7119.html}
}