| 腔基微带天线的矢量有限元--边界积分方法分析 |
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| 引用本文： | 班永灵,周乐柱.腔基微带天线的矢量有限元--边界积分方法分析[J].电波科学学报,2003,18(5):491-495. |
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| 作者姓名： | 班永灵 周乐柱 |
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| 作者单位： | 北京大学信息科学与技术学院电子学系,北京,100871 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研项目，600710167，20010001037，， |
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| 摘 要： | 该文将矢量有限元——边界积分(Edge-Based FE-BI)混合方法用于腔基微带贴片线的辐射特性分析。分别计算了在无阻抗负载和加有阻抗负载两种情况下的输入阻抗，以此验证了该混合方法的正确性；然后计算了贴片天线表面缝隙部分的场分布，验证微带天线分析模型——传输线模型的合理性；最后计算了E面、H面方向图以及相应的交叉极化方向图。
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| 关 键 词： | 矢量有限元 边界积分 腔基微带天线 输入阻抗 方向图 交叉极化 |
| 文章编号： | 1005-0388(2003)05-0491-05 |
A hybrid edge-based finite-element and boundary-integral method for analysis of by cavity-backed microstrip patch antennas |
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| BAB Yong,ling,ZHOU Le,zhu.A hybrid edge-based finite-element and boundary-integral method for analysis of by cavity-backed microstrip patch antennas[J].Chinese Journal of Radio Science,2003,18(5):491-495. |
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| Authors: | BAB Yong ling ZHOU Le zhu |
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| Abstract: | ln this paper, the hybrid edge based finite element and boundary integral method is used for radiation properties of microstrip patch antenna residing in a cavity recessed in a ground plane.The hybrid method combines the edge based finite element and boundary integral methods to formulate a system for the solution of the fields at the aperture and those inside the cavity.By virtue of the finite element method, the method is applicable to various patch antennas residing on or embedded in a layered dielectric substrate.lnput impedance computed at the absence of impedance load and at the presence of impedance load is used for the numerical validity of the hybrid method.The aperture field distribution is presented for demonstrating the rationality of the transmission model microstrip antennas analysis model.Finally, cross polarization radiation patterns of E plane and H plane are obtained. |
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| Keywords: | edge based finite element boundary integral cavity backed microstrip patch antennas radiation pattern input impedance |
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