Time-domain asymptotic analysis of transient whisperinggallery mode radiation excited by a UWB pulse source

Time-domain asymptotic analysis of transient whisperinggallery mode radiation excited by a UWB pulse source
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UWB脉冲源激发瞬态回音壁模式辐射的时域渐近分析

DOI：
10.1109/aps.2011.5997036
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发表时间：
2011
期刊：
Proceedings of 2011 IEEE Antennas and Propag. Society International Symposium
影响因子：
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通讯作者：
and Toyohiko Ishihara
and Toyohiko Ishihara
中科院分区：
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文献类型：
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作者：
Keiji Goto;Toru Kawano;and Toyohiko Ishihara

文献摘要

相似文献

利用时域渐近分析方法研究了超宽带（UWB）脉冲源激发的瞬态回音壁（WG）模辐射和散射现象。通过将鞍点技术应用于瞬态WG模式辐射积分，推导出TD渐近解，该积分的特征在于被积函数中相位项的二阶近似。TD渐近分析为瞬态WG模辐射提供了新的物理见解。通过与参考解的比较，检验了TD渐近解的准确性。
A time-domain (TD) asymptotic analysis is developed to describe the radiation and scattering phenomenon of the transient whispering-gallery (WG) mode radiation excited by an ultra-wideband (UWB) pulse source. The TD asymptotic solution is derived by applying the saddle point technique to the transient WG mode radiation integral characterized by the 2nd-order approximation of the phase term in the integrand. The TD asymptotic analysis offers the new physical insight to the transient WG mode radiation. The accuracy of the TD asymptotic solution is examined by comparing with the reference solution.