基于Mie级数解圆极化波与异向介质的相互作用  

The Interaction between a Circularly Polarized Wave and Chiral Metamaterials Based on Mie Series

作　　者：吴万芳 叶思超[2] 王茂琰[2] 牟荟丰[2] 郑虎[2] 

机构地区：[1]中航工业空空导弹研究院,洛阳471009 [2]电子科技大学物理电子学院,成都610054

出　　处：《微波学报》2013年第2期35-38,共4页Journal of Microwaves

基　　金：国家自然科学基金(61001027;41104097)

摘　　要：针对手征异向介质的电磁特性问题,基于Bohren的波分解技术,将手征异向介质球中的电磁波分解为左手和右手圆极化波,应用边界条件,推导了可用于计算手征异向介质球电磁散射的Mie级数解。将理想的、阻抗匹配的异向介质散射截面与文献结果对比证明了本文算法和程序的正确性。基于Mie级数解计算了有耗手征异向介质球的后向散射截面,探讨圆极化波与手征异向介质的相互作用。According to the electromagnetic characteristic of chiral inetamaterials （ CMMs）, wave in CMMs is splitted into a left and a right-handed circularly polarized waves based on Bohren＇ s wave decomposition scheme. By applying the continuous boundary condition on the interfaces of the sphere, the electromagnetic scattering of CMMs sphere is formulated in terms of Mie series method. The validity of the proposed method and program is proved by comparing the radar cross sections of an ideal and impedanced-matched metamaterials sphere ~th reference＇ s result. Backward scattering cross section of lossy CMMs sphere is computed base on Mie series method to investigate the interaction between a circularly polarized wave and CMMs.

关 键 词：Mie级数 手征异向介质 极化 

分 类 号：O441[理学—电磁学]