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垂直电偶极子在负折射媒质中激起的场 被引量：4

Electromagnetic field produced by a vertical electric dipole on a negative-index media half space
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摘要 讨论了垂直电偶极子在由介电常数和磁导率都为负数的介质和普通介质组成的均匀半空间中激起的电磁场,得出了场分量完整的方便计算的解析表达式。从中可以看出,当二种介质中有一种是负折射介质时,沿介质分界面传播的波除了以往所熟知的侧面波以外,还存在表面波。此种表面波沿分界面传播的波数比波分别在两种均匀媒质中传播的波数小,是一种“慢波”。当两种介质无损耗时,其沿径向传播的幅度以1/ρ1/2衰减。 The analytical expressions of electromagnetic field induced by a vertical electric dipole on a negative index media half space are obtained. It can be seen that the electromagnetic field in the presence of a half-space with negative-index media is consisted of lateral wave and surface wave. The propagation wave-number of surface wave is less than both wave number k1 in the air and wave number ｜k2｜ in the negative-index-media, so this kind of surface wave is a kind of slow wave. The amplitude of surface wave for lossless media decrease with radial diatance as 1/ρ^1/2.
作者 朱秀芹 潘威炎 官伯然
机构地区 西安电子科技大学电子工程学院 中国电波传播研究所青岛研发中心 杭州电子科技大学天线和微波技术研究所
出处 《电波科学学报》 EI CSCD 北大核心 2006年第2期177-183,共7页 Chinese Journal of Radio Science
关键词 负折射媒质 表面波 侧面波 negative-index media, surface wave, lateral wave
分类号 TN011 [电子电信—物理电子学]
  • 相关文献

参考文献14

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二级参考文献10

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共引文献26

同被引文献31

  • 1肖春燕,雷银照.分层球形导体中任意位置直流电流元产生电位的解析解[J].物理学报,2005,54(4):1950-1957. 被引量：8
  • 2杨娟,梁昌洪.平面波在双负和双正参数媒质界面的反射与折射[J].电波科学学报,2005,20(3):321-324. 被引量：19
  • 3毕军建,崔占忠,陈曦.空中目标静电场矢量定位方法研究[J].探测与控制学报,2005,27(1):16-18. 被引量：6
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  • 10KING R W P, Owens Margaret and WU T T. Lateral Electromagnetic Wave [M]. Springer-verlag press, 1992.

引证文献4

二级引证文献11

电波科学学报
2006年 第2期

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