| 采用二级离散复镜像法分析同轴馈电微带天线的输入阻抗 |
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| 引用本文： | 贺秀莲,龚书喜,刘其中.采用二级离散复镜像法分析同轴馈电微带天线的输入阻抗[J].西安电子科技大学学报,2005,32(4):579-583. |
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| 作者姓名： | 贺秀莲 龚书喜 刘其中 |
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| 作者单位： | 西安电子科技大学天线与电磁散射研究所,陕西西安710071 |
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| 基金项目： | 国家部委预研资助项目（410010202） |
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| 摘 要： | 采用基于二级离散复镜像法的矩量法，分析了同轴馈电的任意形状微带天线的输入阻抗．该方法采用二级离散复镜像方法求解空间域的格林函数，与直接数值积分方法相比，提高了计算格林函数的速度．采用简化的附加模基函数模拟贴片与探针相连处的电漉分布，降低了计算的复杂度．计算了两个不同形状的微带贴片天线的输入阻抗，所得的计算结果与实验结果吻合良好．
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| 关 键 词： | 微带天线 输入阻抗 二级离散复镜像法 |
| 文章编号： | 1001-2400（2005）04-0579-05 |
| 收稿时间： | 2004-08-11 |
| 修稿时间： | 2004-08-11 |
Computing the input impedance of coax-fed microstrip patch antennas by the two-level discrete complex image method |
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| He XiuLian;Gong ShuXi;Liu JiZhong.Computing the input impedance of coax-fed microstrip patch antennas by the two-level discrete complex image method[J].Journal of Xidian University,2005,32(4):579-583. |
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| Authors: | He XiuLian;Gong ShuXi;Liu JiZhong |
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| Affiliation: | (Research Inst. of Antennas and EM Scattering, Xidian Univ., Xi′an 710071， China) ; |
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| Abstract: | The impedance of coax-fed arbitrary shape microstrip patch antenna is investigated by the moment method. The two-level discrete complex image method is used to compute the spatial Green's Function, and thus improves the speed to compute Green's function compared with the direct integral method. The simplified additional mode is introducted to simulate the current distribution near the probe-to-patch junction with the complexity decreased. The intut impedance of two different shape microstrip patch antennas is computed and the numerical result agrees well with the experimental result. |
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| Keywords: | microstrip antenna input impedance two-level discrete complex image method |
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