TY - GEN
T1 - The simulation of electromagnetic scattering from a cluster of needles based on discrete dipole approximation
AU - Ding, Yafang
AU - Liu, Dawei
AU - Qiao, Xinya
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/1
Y1 - 2017/7/1
N2 - In this paper, the volume integration equation based on Discrete Dipole Approximation (DDA) is applied to calculating the electromagnetic scattering field of a cluster of needles. The cubic dipole cells are used to discretize scatterers. Furthermore, this paper novelly considers the role of the irregular parts of the scatterers' edge. The backscattering cross section and the bistatic scattering cross section of the cluster of needles calculated by DDA algorithm are compared with the results obtained by the analytical algorithms of the Generalized by Rayleigh-Gans Approximation (GRGA) algorithm and Thin Dielectric Cylinder (TDC) algorithm. In addition, the comparison of the results with considering the parts in the edge of scatterers and without considering it is presented in this paper. The simulation demonstrates that the numerical solution is better than the analytical solution, but the analytic solution is more efficient in the backscattering and bistatic scattering of a cluster of needles. Moreover, the algorithm considering the portion in the edge of the scatterers can improve computational efficiency and reduce storage space. In conclusion, the study for bistatic scattering of dense scatterers by taking into account the parts in the edge of scatterers are meaningful in the sight of computational efficiency and accuracy.
AB - In this paper, the volume integration equation based on Discrete Dipole Approximation (DDA) is applied to calculating the electromagnetic scattering field of a cluster of needles. The cubic dipole cells are used to discretize scatterers. Furthermore, this paper novelly considers the role of the irregular parts of the scatterers' edge. The backscattering cross section and the bistatic scattering cross section of the cluster of needles calculated by DDA algorithm are compared with the results obtained by the analytical algorithms of the Generalized by Rayleigh-Gans Approximation (GRGA) algorithm and Thin Dielectric Cylinder (TDC) algorithm. In addition, the comparison of the results with considering the parts in the edge of scatterers and without considering it is presented in this paper. The simulation demonstrates that the numerical solution is better than the analytical solution, but the analytic solution is more efficient in the backscattering and bistatic scattering of a cluster of needles. Moreover, the algorithm considering the portion in the edge of the scatterers can improve computational efficiency and reduce storage space. In conclusion, the study for bistatic scattering of dense scatterers by taking into account the parts in the edge of scatterers are meaningful in the sight of computational efficiency and accuracy.
KW - Discrete Dipole Approximation
KW - bistatic scattering cross section
KW - dense scatterers
KW - irregular parts of the scatterers' edge
UR - https://www.scopus.com/pages/publications/85049661743
U2 - 10.1109/MAPE.2017.8250859
DO - 10.1109/MAPE.2017.8250859
M3 - 会议稿件
AN - SCOPUS:85049661743
T3 - Proceedings of 2017 7th IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies, MAPE 2017
SP - 292
EP - 295
BT - Proceedings of 2017 7th IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies, MAPE 2017
A2 - Wen, Yinghong
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies, MAPE 2017
Y2 - 24 October 2017 through 27 October 2017
ER -