Year: 2014
Communications in Computational Physics, Vol. 15 (2014), Iss. 4 : pp. 895–910
Abstract
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.
You do not have full access to this article.
Already a Subscriber? Sign in as an individual or via your institution
Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/cicp.090413.130913s
Communications in Computational Physics, Vol. 15 (2014), Iss. 4 : pp. 895–910
Published online: 2014-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 16
-
A Fast Direct Solver for High Frequency Scattering from a Large Cavity in Two Dimensions
Lai, Jun | Ambikasaran, Sivaram | Greengard, Leslie F.SIAM Journal on Scientific Computing, Vol. 36 (2014), Iss. 6 P.B887
https://doi.org/10.1137/140964904 [Citations: 31] -
Design of Broadband and Ultra-Wide-Angle Low-RCS Open-Ended Cavity Based on Phase Cancellation
He, Qingting | Chen, Haiyan | Liu, Qian | Yao, Xin | Li, Fengxia | Liang, Difei | Xie, Jianliang | Deng, Longjiang | Muntoni, GiacomoInternational Journal of RF and Microwave Computer-Aided Engineering, Vol. 2023 (2023), Iss. P.1
https://doi.org/10.1155/2023/9958074 [Citations: 0] -
Broadband RCS reduction for electrically-large open-ended cavity using random coding metasurfaces
Zhou, Yang | Yan, Yao | Xie, Jianliang | Chen, Haiyan | Zhang, Guori | Li, Fengxia | Zhang, Li | Wang, Xin | Weng, Xiaolong | Zhou, Peiheng | Li, Xiaoqiu | Deng, LongjiangJournal of Physics D: Applied Physics, Vol. 52 (2019), Iss. 31 P.315303
https://doi.org/10.1088/1361-6463/ab1e2a [Citations: 11] -
A fast solver for multi-particle scattering in a layered medium
Lai, Jun | Kobayashi, Motoki | Greengard, LeslieOptics Express, Vol. 22 (2014), Iss. 17 P.20481
https://doi.org/10.1364/OE.22.020481 [Citations: 15] -
The Effect of the Wall Thickness of the Material Loaded Cavity On the RCS Reduction
Demiryürek, Oğuzhan | Birbir Ünal, FilizDüzce Üniversitesi Bilim ve Teknoloji Dergisi, Vol. 12 (2024), Iss. 4 P.2330
https://doi.org/10.29130/dubited.1527024 [Citations: 0] -
A fast algorithm for the electromagnetic scattering from a large rectangular cavity in three dimensions
Chen, Yanli | Jiang, Xue | Lai, Jun | Li, PeijunJournal of Computational Physics, Vol. 437 (2021), Iss. P.110331
https://doi.org/10.1016/j.jcp.2021.110331 [Citations: 8] -
Robust integral formulations for electromagnetic scattering from three-dimensional cavities
Lai, Jun | Greengard, Leslie | O'Neil, MichaelJournal of Computational Physics, Vol. 345 (2017), Iss. P.1
https://doi.org/10.1016/j.jcp.2017.05.008 [Citations: 12] -
Advances in Structural and Multidisciplinary Optimization
A Gradient-Based Topology Optimisation for Radar Cross Sections in Two-Dimensional Acoustics
Isakari, Hiroshi | Takahashi, Toru | Matsumoto, Toshiro2018
https://doi.org/10.1007/978-3-319-67988-4_35 [Citations: 0] -
Stability for the Electromagnetic Scattering from Large Cavities
Bao, Gang | Yun, KiHyunArchive for Rational Mechanics and Analysis, Vol. 220 (2016), Iss. 3 P.1003
https://doi.org/10.1007/s00205-015-0947-x [Citations: 12]