Backscattering Cross Section of Ultrawideband Antennas
Backscattering Cross Section of Ultrawideband Antennas
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DOI：
10.1109/lawp.2007.893069
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发表时间：
2007-03
影响因子：
4.2
通讯作者：
Sanming Hu;Honghui Chen;Choi Look Law;Zhongxiang Shen;Lei Zhu;Wenxun Zhang;Wenbin Dou
中科院分区：
文献类型：
--
作者：
Sanming Hu;Honghui Chen;Choi Look Law;Zhongxiang Shen;Lei Zhu;Wenxun Zhang;Wenbin Dou
本文对超宽带(UWB)天线的后向散射进行了理论和实验研究。采用Berenger完全匹配层吸收边界条件(PML-ABC)的时域有限差分法(FDTD)进行了数值模拟，并在室内环境中进行了测量。对正方形缝隙天线和印刷圆盘单极子天线在三种不同负载作用下的单站雷达散射截面(RCS)进行了数值计算和实验验证。在3~11 GHz的频率范围内，两者吻合较好。然后，对两种超宽带天线结构的结构模式和天线模式的散射特性在频域和时间域上进行了广泛的表征
Backscattering of ultrawideband (UWB) antennas is theoretically and experimentally studied in this letter. The finite-difference time-domain (FDTD) method using Berenger's perfectly matched layer absorbing boundary condition (PML-ABC) is employed for simulation and the measurement is carried out in indoor environment. Monostatic radar cross section (RCS) of square-slot antenna and printed circular-disc monopole antenna (PCDMA) terminated with three different kinds of loads are numerically calculated and experimentally verified. They are in good agreement in the frequency range from 3 to 11 GHz. Afterwards, scattering characteristics of the structural and antenna modes of two kinds of UWB antenna structures are extensively characterized in both the frequency domain and time domain