阵列天线特征电流快速分析方法
发布时间：2019-05-08 17:55
【摘要】：阵列天线中平面反射阵天线和共形相控阵天线因其优越的性能一直是无线通信等领域的研究热点。通常,大型阵列全波仿真所消耗的资源较大。因此,迫切需要一种能够实现针对平面反射阵和共形相控阵天线的高效分析方法。本文的第一部分提出一种用特征电流作为全域基函数来高效地分析大型平面反射阵天线的方法。该方法利用反射阵单元结构的相似性,构造一组特征电流对矩量法(MOM)形成的矩阵进行降阶,从而可以减少未知量。同时,在填充降阶矩阵元素时引入插值技术,进一步加速计算。本文的第二部分提出了一种改进的特征电流方法用于分析大型共形微带相控阵天线的问题。相控阵天线采取强制加源的方式,利用传统的特征电流方法并不能准确地求解出电流系数。本文方法在此基础上引入误差补偿,同时实现了计算精度的提高和计算资源的节省。此外,该方法还利用重复结构阻抗矩阵的快速填充技术以及快速多极子技术进一步提高了该方法分析大型共形微带相控阵天线的效率。最后,论文通过数值仿真结果验证了本文方法分析平面反射阵天线和共形微带相控阵天线的正确性与有效性。
[Abstract]:Planar reflector array antenna and conformal phased array antenna in array antenna have been the focus of research in wireless communication due to their superior performance. In general, large-scale array full-wave simulation consumes a large amount of resources. Therefore, an efficient analysis method for planar reflector array and conformal phased array antenna is urgently needed. In the first part of this paper, a method is proposed to analyze the large planar reflector antenna efficiently by using the characteristic current as the global basis function. This method uses the similarity of the element structure of reflection array to construct a group of characteristic currents to reduce the order of the matrix formed by the method of moments (mom) (MOM), thus reducing the unknown amount. At the same time, the interpolation technique is introduced when filling the reduced-order matrix elements to further accelerate the calculation. In the second part of this paper, an improved characteristic current method is proposed for the analysis of large conformal microstrip phased array antennas. The phased array antenna can not accurately calculate the current coefficient by using the traditional characteristic current method. On the basis of this method, error compensation is introduced, and the improvement of calculation precision and saving of calculation resources are realized at the same time. In addition, the fast filling technique of repetitive impedance matrix and the fast multipole technique are used to further improve the efficiency of analyzing large conformal microstrip phased array antennas. Finally, through the numerical simulation results, the correctness and effectiveness of the proposed method for analyzing planar reflector array antenna and conformal microstrip phased array antenna are verified.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN820.15
本文编号：2472112
[Abstract]:Planar reflector array antenna and conformal phased array antenna in array antenna have been the focus of research in wireless communication due to their superior performance. In general, large-scale array full-wave simulation consumes a large amount of resources. Therefore, an efficient analysis method for planar reflector array and conformal phased array antenna is urgently needed. In the first part of this paper, a method is proposed to analyze the large planar reflector antenna efficiently by using the characteristic current as the global basis function. This method uses the similarity of the element structure of reflection array to construct a group of characteristic currents to reduce the order of the matrix formed by the method of moments (mom) (MOM), thus reducing the unknown amount. At the same time, the interpolation technique is introduced when filling the reduced-order matrix elements to further accelerate the calculation. In the second part of this paper, an improved characteristic current method is proposed for the analysis of large conformal microstrip phased array antennas. The phased array antenna can not accurately calculate the current coefficient by using the traditional characteristic current method. On the basis of this method, error compensation is introduced, and the improvement of calculation precision and saving of calculation resources are realized at the same time. In addition, the fast filling technique of repetitive impedance matrix and the fast multipole technique are used to further improve the efficiency of analyzing large conformal microstrip phased array antennas. Finally, through the numerical simulation results, the correctness and effectiveness of the proposed method for analyzing planar reflector array antenna and conformal microstrip phased array antenna are verified.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN820.15
【参考文献】
相关期刊论文 前2条
1 阙肖峰;聂在平;;大型阵列结构电磁特性分析的特征基函数方法[J];系统工程与电子技术;2006年11期
2 宋玉明;曹伟;;改进型矩量法/双正交模法混合技术及其在天线分析中的应用[J];南京邮电学院学报;1992年04期
，本文编号：2472112
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