紧缩场馈源偏焦相位高效计算方法

doi:10.12305/j.issn.1001-506X.2022.10.07

系统工程与电子技术 ›› 2022, Vol. 44 ›› Issue (10): 3046-3052.doi: 10.12305/j.issn.1001-506X.2022.10.07

紧缩场馈源偏焦相位高效计算方法

姜涌泉^1,^2,*, 殷红成^1,², 莫崇江²

1. 中国传媒大学信息与通信工程学院, 北京 100024
2. 北京环境特性研究所电磁散射重点实验室, 北京 100854

收稿日期:2021-09-28 出版日期:2022-09-20 发布日期:2022-10-24
通讯作者: 姜涌泉
作者简介:姜涌泉(1989—), 男, 工程师, 博士研究生, 主要研究方向为紧缩场及微波暗室优化设计|殷红成(1967—), 男, 研究员, 博士, 主要研究方向为电磁散射特性、雷达目标识别、隐身技术|莫崇江(1976—), 男, 研究员, 本科, 主要研究方向为微波暗室建设改造及系统研发

Efficient calculation method of phase characteristics of defocusing feed in compact antenna test range

Yongquan JIANG^1,^2,*, Hongcheng YIN^1,², Chongjiang MO²

1. School of Information and Communication Engineering, Communication University of China, Beijing 100024, China
2. Science and Technology on Electromagnetic Scattering Laboratory, Beijing Institute of Environmental Features, Beijing 100854, China

Received:2021-09-28 Online:2022-09-20 Published:2022-10-24
Contact: Yongquan JIANG

摘要/Abstract

摘要：

研究紧缩场馈源偏焦相位的高效计算方法具有重要的实用价值。以适用于高频条件的几何光学法为基础, 根据光线传播的基本规律, 通过三维空间光程差推导, 获得单旋转抛物面及双抛物柱面静区的相位快速计算公式。对比结果表明, 理论公式计算结果与实际模型仿真结果及实测结果一致性好, 在保证计算精度的前提下, 提高了紧缩场馈源偏焦模型相位分析的时效性, 可完全用于指导紧缩场高频端馈源设计及现场安装调试。

关键词: 光程差, 几何光学, 紧缩场, 馈源偏焦, 静区相位

Abstract:

It is of great practical value to study the efficient calculation method of phase characteristics of defocusing feed in compact antenna test range (CATR). Based on the geometrical optics (GO) which is applicable to high frequency conditions, and according to the basic law of light propagation, the fast calculation formulas of quiet zone phase for single rotating paraboloid and dual parabolic cylinder can be obtained through the derivation of optical path difference in three dimensional space. The comparison results between calculation simulation and measurement show that they are consistent with each other, and the timeliness of defocusing feed model analysis of phase in CATR is improved on the premise of ensuring the calculation accuracy, which can be used to guide the design, on-site installation and debugging of high-frequency feed in CATR.

Key words: optical path difference, geometrical optics (GO), compact antenna test range (CATR), defocusing feed, quiet zone phase

中图分类号:

TN92

姜涌泉, 殷红成, 莫崇江. 紧缩场馈源偏焦相位高效计算方法[J]. 系统工程与电子技术, 2022, 44(10): 3046-3052.

Yongquan JIANG, Hongcheng YIN, Chongjiang MO. Efficient calculation method of phase characteristics of defocusing feed in compact antenna test range[J]. Systems Engineering and Electronics, 2022, 44(10): 3046-3052.

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频率点		统计指标	分析方法
频率点		统计指标	仿真法	公式法
单旋转抛物面	10 GHz	计算时间/min	12	5
	10 GHz	峰值内存/MB	162.4	17.4
	40 GHz	计算时间/min	50	5
	40 GHz	峰值内存/MB	366.8	17.4
双抛物柱面	10 GHz	计算时间/min	36	10
	10 GHz	峰值内存/MB	223.7	40.6
	40 GHz	计算时间/min	134	10
	40 GHz	峰值内存/MB	453.6	40.6

紧缩场馈源偏焦相位高效计算方法

Efficient calculation method of phase characteristics of defocusing feed in compact antenna test range

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