| PBG结构特性的研究及其在天线中的应用 |
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| 引用本文： | 胡荣,张雪霞.PBG结构特性的研究及其在天线中的应用[J].电子学报,2003,31(12):1765-1770. |
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| 作者姓名： | 胡荣 张雪霞 |
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| 作者单位： | 清华大学电子工程系,北京 100084 |
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| 基金项目： | 国家自然科学基金 (No .69971 0 1 3) |
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| 摘 要： | 本文比较了PBG(photonic band-gap)结构的三种测量方法,包括共面微带线法,振子法和悬置微带线法.然后以PVPBG(patch and via PBG)结构为例研究了PBG结构在振子天线、微带天线和E形天线中的应用.仿真和实验结果表明PBG结构可以起到改善天线输入阻抗,增强前向辐射,抑制后向辐射,提高天线前向增益的作用.在缝耦合PVPBG结构的基础上,提出了一种新的交指PVPBG结构,其尺寸为具有相同带隙频率的缝耦合PVPBG结构的3/4.
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| 关 键 词： | PBG结构 振子天线 微带天线 E形天线 交指PVPBG |
| 文章编号： | 0372-2112(2003)12-1765-06 |
| 收稿时间： | 2002-06-25 |
Study of PBG Structure and Its Application in Antennas |
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| HU Rong,ZHANG Xue xia.Study of PBG Structure and Its Application in Antennas[J].Acta Electronica Sinica,2003,31(12):1765-1770. |
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| Authors: | HU Rong ZHANG Xue xia |
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| Affiliation: | Dept.of Electronic Engineering,Tsinghua University,Beijing 100084,China |
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| Abstract: | In this paper,three measuring methods of the characteristics of PBG structures are compared,including coplanar microstrip line method,monopole method and suspending microstrip line method.Then the PVPBG structure(as a typical example of PBG structures)is applied in monopoles、microstrip antennas and E shape antennas respectively.Simulation and experimental results show that the PBG structure can improve the input impedance of antennas,increase the front radiation,decrease the back radiation and increase the gain of antennas.Based on the Gap-Coupled PVPBG(GCPVPBG)structure,we propose a new PVPBG structure named Intercrossed Capacitor-Coupled PVPBG(ICCPVPBG)structure.The size of the ICCPVPBG structure is only 3/4 of the size of the GCPVPBG structure when they have the same band-gap. |
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| Keywords: | PBG structure monopole microstrip antenna E shape antenna ICCPVPBG |
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