| 引用本文: | 袁海军,张钧.接地双层介质上平面螺旋天线的数值分析与实验结果.[J].国防科技大学学报,1997,19(3):50-54.[点击复制] |
| Yuan Haijun,Zhang Jun.Numerical Analysis and Experimental Results of Plannar Spiral Antenna Mounted on the grounded Double-layer[J].Journal of National University of Defense Technology,1997,19(3):50-54[点击复制] |
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| 接地双层介质上平面螺旋天线的数值分析与实验结果 |
| 袁海军, 张钧 |
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(国防科技大学 电子工程学院 湖南 长沙 410073)
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| 摘要: |
| 本文对接地双层介质结构上的阿基米德平面螺旋天线进行了研究。以接地双层结构上水平赫芝偶极子Sommerfeld型积分的格林函数为基础, 用矩量法求解积分方程, 从而确定出螺旋天线臂上的电流分布。用渐近法估计Sommerfeld 积分得到远区电场的解析表达式, 由此计算出输入阻抗、方向图、功率增益和轴比。这些参数值对于双层结构上印刷线天线的优化设计具有重要指导意义。实验结果证明了数值方法的正确性。 |
| 关键词: 阿基米德平面螺旋天线, 格林函数, Sommerfeld 型积分, 矩量法 |
| DOI： |
| 投稿日期：1996-11-29 |
| 基金项目: |
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| Numerical Analysis and Experimental Results of Plannar Spiral Antenna Mounted on the grounded Double-layer |
| Yuan Haijun, Zhang Jun |
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(Institude of Electronic Engineering, NUDT, changsha, 410073)
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| Abstract: |
| An Archimedean plannar spiral antenna mounted on the grounded double-layer is investiged. Based on the substrate superstrate Green' s function in terms of Sommerfeld-type integrals for a horizontal Hertzian dipole on the superstrate, the current distribution along the spiral arm is determined by using an integral equation with the moment method, the input impedance, radiation pattem, axial ration and power gain are calculated on the basis of the obtained current distrbution, which is very important for optimum design of the printed wire antennas. Experimental results show that the numerical method is correct . |
| Keywords: Archimedean plannar spiral antenna, Green's function, Sommerfeld-type integral, the moment method |
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