基于模式匹配及BLT方程的腔体内场线耦合计算方法研究

任丹; 杜平安; 陈珂; 肖培; MichelsonGDavid

doi:10.11999/JEIT161101

基于模式匹配及BLT方程的腔体内场线耦合计算方法研究

doi: 10.11999/JEIT161101

2.
(电子科技大学机械电子工程学院成都 611731) ②(英属哥伦比亚大学电气与信息工程学院温哥华 V6T1Z4)

基金项目:

国家自然科学基金(51675086)

计量
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- 被引次数: 15
出版历程
- 收稿日期: 2016-10-18
- 修回日期: 2017-02-15
- 刊出日期: 2017-08-19

Analytic Method Based on Mode Matching and BLT Equation for Field to Wire Coupling in an Enclosure

2.
(Department of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China)

Funds:

The National Natural Science Foundation of China (51675086)

摘要

摘要: 金属腔体内的场线耦合是电磁兼容领域的一个重要的问题，基于模式匹配及BLT方程理论，该文提出一种计算带孔阵腔体内场线耦合的方法。将外部激励源对腔体内传输线的耦合分解为孔腔耦合和场线耦合两个过程，腔体内任意点的场强由模式匹配理论及矩量法计算得到，腔体内的场线耦合由Agrawal模型构建BLT方程进行计算。与测试数据对比得出，模式匹配理论可以准确计算腔体内部电磁场。与CST数值仿真数据对比得到，该方法可以准确计算任意入射波激励下线缆终端负载上的电流响应且计算效率高，可用于腔体内场线耦合的研究。
- 模式匹配 /
- BLT方程 /
- 孔腔耦合 /
- 场线耦合
Abstract: The field-to-wire coupling in metal enclosure is an important issue in the field of electromagnetic compatibility. In this paper, an efficient and accurate approach is presented to calculate the EMI (ElectroMagnetic Interference) of a complex cable bundle in an enclosure, which involves two methods: mode matching and BLT equation. The issue is divided into the two sub-questions: aperture coupling and field-to-wire coupling, the electromagnetic field in enclosure is calculated by the Mode function and MOM, the EMI of the cables in an enclosure is calculated by Agrawal,s field-to-wire coupling theory and BLT equation. In comparison with measurement data shows that the electromagnetic field in enclosure can be accurately calculated by the mode matching method. The proposed method can also significantly reduce the simulation time and improve the efficiency of simulation compared with CST, which can be used to calculate the field-to-wire coupling in an enclosure.
- Mode matching /
- BLT equation /
- Aperture coupling /
- Field-to-wire coupling

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参考文献(15)

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