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一种基于PBG结构的多频微带天线的分析与设计 被引量：2

Analysis and Design of a Multi-Frequency Microstrip Antenna Based on a PBG Structure
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摘要 在C型缝隙微带天线介质基板内引入光子晶体结构,设计了一种基于PBG结构的多频微带天线,此天线采用在C型缝隙天线贴片下方挖出凹槽,将辐射板放入凹槽中,并在微带天线的介质基板中引入高度不同的周期性三角柱空气隙PBG结构的设计方案。采用基于有限元方法的电磁仿真软件AnsoftHFSS10.0对所设计的天线进行了仿真。与普通的C型缝隙天线相比,PBG结构的引入有效地改善了天线的辐射特性及多频工作性能。从而验证了这种设计方案在抑制表面波、提高增益及改善天线的辐射方向性等方面的有效性。 Based on the PBG structure,a new multi-frequency microstrip slot antenna is designed by introducting photonic crystal structure to the medium substrate of the C-shaped microstrip slot antenna.The antenna has a groove below the radiation plate,within which the radiation plate is placed,and the air triangular prism column gaps with different height are placed in the substrate periodically.Numerical simulation is performed for the antenna with Ansoft HFSS10.0,which is a kind of simulation software based on Finite Element Method（FEM）.Compared with the ordinary C-shaped microstrip slot antenna,both the radiation and multi-frequency characteristics of this proposed antenna are improved by introducting the PBG structure.The results demonstrate that the structure is efficient in improving the antenna gain and radiation directivity and suppressing surface wave of the microstrip antenna.
作者 杨虹 陈轶芬 邵建兴
机构地区 重庆邮电大学光电工程学院
出处 《中国电子科学研究院学报》 2011年第2期192-196,共5页 Journal of China Academy of Electronics and Information Technology
基金 重庆市教委科学技术研究项目(KJ100512) 重庆市自然科学基金(CSTC 2010DD2412)
关键词 PBG结构 C型缝隙天线 表面波 增益 PBG structure C-shaped slot microstrip antenna surface wave gain
分类号 TN822 [电子电信—信息与通信工程]
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参考文献10

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二级参考文献8

  • 1F Yang, R Coccioli, Y Qian, et al.. Planar PBG structures: basic properties and applications [J]. IEICE Trans Electron, 2000, 83(5): 687-696.
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  • 7F Yang, Y Qian, and T Itoh. Low-profile cavity-backed slot antenna using UC-PBG substrate [C].IEEE AP-S Int'l Symp. , Salt Lake City, UT, 2000,1796-1799.
  • 8朱方明,林青春.新型电磁(光子)晶体贴片天线的研究进展[J].电波科学学报,2002,17(2):182-186. 被引量：16

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中国电子科学研究院学报
2011年 第2期

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