[1]柏宁丰,孙小菡,冯进军,等.金属电磁带隙波导色散特性分析[J].东南大学学报(自然科学版),2007,37(5):761-765.[doi:10.3969/j.issn.1001-0505.2007.05.005]
 Bai Ningfeng,Sun Xiaohan,Feng Jinjun,et al.Analysis of dispersion properties in metal electromagnetic band gap waveguide[J].Journal of Southeast University (Natural Science Edition),2007,37(5):761-765.[doi:10.3969/j.issn.1001-0505.2007.05.005]
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金属电磁带隙波导色散特性分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
37
期数:
2007年第5期
页码:
761-765
栏目:
电磁场与微波技术
出版日期:
2007-09-20

文章信息/Info

Title:
Analysis of dispersion properties in metal electromagnetic band gap waveguide
作者:
柏宁丰1 孙小菡1 冯进军2 邬显平2 廖复疆2
1 东南大学电子器件系统可靠性研究中心, 南京 210096; 2 大功率微波电真空器件技术国家重点实验室, 北京 100016
Author(s):
Bai Ningfeng1 Sun Xiaohan1 Feng Jinjun2 Wu Xianping2 Liao Fujiang2
1 Research Center for Electronic Device System Reliability, Southeast University, Nanjing 210096, China
2 National key Laboratory for Vacuum Electronics, Beijing 100016, China
关键词:
电磁带隙 时域有限差分法 色散
Keywords:
electromagnetic band gap finite-difference time-domain dispersion
分类号:
TN011
DOI:
10.3969/j.issn.1001-0505.2007.05.005
摘要:
建立了紧凑格式二维时域有限差分法(CFDTD)模型,利用二维网格划分计算三维传播问题,简化了计算量.提出了一种纵向均匀的中心缺陷型六角晶格金属电磁带隙波导结构.利用CFDTD仿真该金属电磁带隙波导,获得该结构的基模场分布及频率.改变纵向传播常数,得到对应的基模频率以及色散特性,计算结果表明色散特性满足电磁带隙的缩放特性.测量该波导在11~15 GHz以内的传输率, 12 GHz附近的波导波长和色散曲线,仿真结果与测量值误差在5%以内.
Abstract:
The compact finite-difference time-domain(CFDTD)method was employed to simulate the dispersion properties in an electromagnetic band gap(EBG)waveguide which was uniform in the propagation direction. This EBG waveguide has hexagonal lattice in the transverse section with center rod removed. CFDTD was employed to simulate field distribution and corresponding frequency of fundamental mode. Dispersion properties of fundamental mode in this metal EBG waveguide were obtained by varying propagation constant of guided mode. Simulation results show that dispersion property in this EBG waveguide follows scaling law. Transmissitivity of this EBG waveguide was measured between 11 to 15 GHz. Based on the measured traveling wavelengths around 12 GHz, the dispersion properties in this EBG waveguide were described. It is found that the differences between simulation results and measured values are within 5%.

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备注/Memo

备注/Memo:
基金项目: 大功率微波电真空器件技术国家重点实验室资助项目.
作者简介: 柏宁丰(1978—),男,博士生; 孙小菡(联系人), 女,教授,博士生导师,xhsun@seu.edu.cn.
更新日期/Last Update: 2007-09-20