基于多端口网络的电场辐射发射试验仿真方法

doi:10.12305/j.issn.1001-506X.2025.05.04

摘要/Abstract

摘要：

为了在产品设计阶段预测设备电场辐射发射试验超标风险, 提出一种基于多端口网络理论的电场辐射发射试验快速仿真方法。所提方法将标准试验定义为一种多端口网络, 通过计算端口与端口之间散射参数, 快速得到发射和接收之间的耦合关系。针对试验环境仿真精度开展实测验证, 结果表明连续波及脉冲激励时的平均误差分别在2 dB和6 dB以内, 说明了所提方法的有效性。与传统仿真方法相比, 所提方法的精度与效率有明显改善。因此, 基于多端口网络的电场辐射发射试验快速仿真方法对于预测和评估设备电场辐射发射试验超标风险具有重要的实际意义。

关键词: 电磁兼容, 电磁仿真, 多端口网络理论, 电磁兼容试验

Abstract:

In order to predict the risk of exceeding electric field radiation emission test standards during the product design stage, a fast simulation method of electric field radiation emission test based on multi-port network theory is proposed. The standard test is defined as a multi-port network. To efficiently determine the coupling relationship between transmission and reception, scattering parameters among ports are calculated. The simulation accuracy of the test environment is verified by measurement. Experimental results demonstrate that the proposed method achieves an average error of less than 2 dB and 6 dB for continuous wave and pulse excitation, respectively, which highlights its effectiveness. Compared with traditional simulation methods, the proposed method significantly enhances accuracy and efficiency. Therefore, this fast simulation method of electric field radiation emission test based on multi-port network theory holds great practical significance in predicting and evaluating risks associated with exceeding equipment's electric field radiation emission test standards.

Key words: electromagnetic compatibility, electromagnetic simulation, multi-port network theory, electromagnetic compatibility test

中图分类号:

TN06

马策一, 魏文轩, 于泽, 王迎节. 基于多端口网络的电场辐射发射试验仿真方法[J]. 系统工程与电子技术, 2025, 47(5): 1414-1420.

Ceyi MA, Wenxuan WEI, Ze YU, Yingjie WANG. Simulation method for electric field radiation emission test based on multi-port network[J]. Systems Engineering and Electronics, 2025, 47(5): 1414-1420.

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极化	距离/ m	实测/ dBm	仿真/dBm	误差/dB
水平	1	11.92	10.34	1.62
水平	2	8.62	7.16	1.46
垂直	1	-7.35	-7.47	0.12
垂直	2	-15.94	-14.72	1.22

极化	距离/m	时间/s	内存消耗/GB	平均误差/dB
水平	1	488	3.82	2.94
水平	2	445	3.76	5.22
垂直	1	349	3.56	1.66
垂直	2	270	2.26	4.06

方法	时间	内存消耗/GB	仿真误差/dB
传统方法	20 h	5.85	12.76
本文方法	8 min	3.82	2.94

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