| 高效率计算光滑平台上远距离天线间互耦算法 |
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| 引用本文： | 刘宏伟,谢敏,魏兵,袁浩波. 高效率计算光滑平台上远距离天线间互耦算法[J]. 系统工程与电子技术, 2022, 44(1): 28-33. DOI: 10.12305/j.issn.1001-506X.2022.01.04 |
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| 作者姓名： | 刘宏伟 谢敏 魏兵 袁浩波 |
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| 作者单位： | 1. 西安电子科技大学物理与光电工程学院, 陕西 西安 7100712. 西安电子工程研究所, 陕西 西安 7101003. 西安电子科技大学电子工程学院, 陕西 西安 710071 |
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| 基金项目： | 国家自然科学基金(61901324);电波环境特性及模块化技术国防科技重点实验室基金(201903002);陕西省自然科学基础计划(2021JM-129)资助课题。 |
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| 摘 要： | 为了高效率地分析光滑平台上两天线间的互耦,提出了一种计算S参数的快速算法.该方法首先通过球谐变换(spherical harmonic transformation,SHT)展开单个天线的辐射场,然后采用一致性几何绕射理论(uniform theory of diffraction,UTD)分析平台的散射场,最后通过互...
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| 关 键 词： | S参数 互易定理 球谐变换 一致性几何绕射理论 |
| 收稿时间： | 2020-11-23 |
Efficient algorithm to compute the coupling between long-distance antennas mounted on a smooth platform |
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| LIU Hongwei,XIE Min,WEI Bing,YUAN Haobo. Efficient algorithm to compute the coupling between long-distance antennas mounted on a smooth platform[J]. System Engineering and Electronics, 2022, 44(1): 28-33. DOI: 10.12305/j.issn.1001-506X.2022.01.04 |
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| Authors: | LIU Hongwei XIE Min WEI Bing YUAN Haobo |
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| Affiliation: | 1. School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, China2. Xi'an Electronic Engineering Research Institute, Xi'an 710100, China3. School of Electronic Engineering, Xidian University, Xi'an 710071, China |
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| Abstract: | In order to analyze the coupling between antennas mounted on a smooth platform efficiently, a fast algorithm is introduced to evaluate the S-parameters. Firstly, this algorithm proposes to expand the radiated fields of an antenna by spherical harmonic transform (SHT). Then, evaluate the field scattered by the platform with uniform theory of diffraction (UTD). Finally, the S-parameter between two antennas is computed with the reciprocity theorem. It requires measuring or simulating every antenna only once to compute the S-parameter between a couple of antennas efficiently, even if the two antennas are rotated arbitrarily. The numerical example shows that the proposed algorithm is almost as accurate as the method of moments/UTD hybrid method of FEKO, and the former is faster than the latter. |
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| Keywords: | S-parameter reciprocity theorem spherical harmonic transform(SHT) uniform theory of diffraction(UTD) |
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