| 基于Drude-FDTD算法的单负介质组合填充波导传播特性研究 |
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| 引用本文： | 项阳,钱祖平,刘贤,鲍峻松.基于Drude-FDTD算法的单负介质组合填充波导传播特性研究[J].物理学报,2008,57(9):5537-5541. |
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| 作者姓名： | 项阳 钱祖平 刘贤 鲍峻松 |
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| 作者单位： | (1)解放军理工大学通信工程学院，南京 210007; (2)解放军理工大学通信工程学院，南京 210007；总参第63研究所 |
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| 摘 要： | 提出了电单负介质和磁单负介质组合填充矩形波导结构，通过理论分析和修正的3D-Drude-FDTD算法进行数值仿真，分析了电磁波在其中的传播特性.仿真结果表明，新结构波导中存在异于传统介质填充波导的亚波长导模，且传播常数基本不随频率的变化而变化，可以用于宽带微波器件和天线的设计.
关键词：
单负介质
传播常数
截止频率
时域有限差分法
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| 关 键 词： | 单负介质 传播常数 截止频率 时域有限差分法 |
| 收稿时间： | 2007-12-11 |
Analysis and simulation on propagation characteristics in waveguide filled with single-negative medium layers |
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| Xiang Yang,Qian Zu-Ping,Liu Xian,Bao Jun-Song.Analysis and simulation on propagation characteristics in waveguide filled with single-negative medium layers[J].Acta Physica Sinica,2008,57(9):5537-5541. |
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| Authors: | Xiang Yang Qian Zu-Ping Liu Xian Bao Jun-Song |
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| Abstract: | The propagation characteristics of rectangular waveguide filled with two layers of single-negative medium are analyzed in this paper. The Drude-FDTD model is adapted to the application in three-dimension simulation program. Simulation results show that a subwavelength transmission mode exists in the waveguide. Based on the simulation results for different frequency and different medium parameter, energy propagation rule in this kind of waveguide is obtained. Especialy, the band width of microwave devices and antennas can be significantly widened with ENG-MNG filling method. |
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| Keywords: | single-negative medium propagation constant cut off frequency finite-difference time-domain method |
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