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首页> 外文期刊>Applied Computational Electromagnetics Society journal >An Equivalent Modeling Method for the Radiated Electromagnetic Interference of PCB Based on Near-field Scanning
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An Equivalent Modeling Method for the Radiated Electromagnetic Interference of PCB Based on Near-field Scanning

机译：基于近场扫描的PCB辐射电磁干扰等效建模方法

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摘要

Since the structure complexity of a PCB makes its EMI modeling be very difficult or impossible, an equivalent modeling method to predict the electromagnetic radiation of a PCB is presented by means of a dipole array based on near-field scanning. Firstly, the equivalent modeling method is theoretically derived and its accuracy is validated by a commercial full-wave tool. Then, the equivalent model is applied to predict the electromagnetic coupling of different parts on a PCB and the electromagnetic leakage of a PCB in an enclosure with numerous small apertures. The results show that the proposed method has high efficiency and acceptable accuracy.
机译：由于PCB的结构复杂性使其EMI建模非常困难或不可能，因此通过基于近场扫描的偶极阵列呈现了预测PCB的电磁辐射的等效建模方法。首先，从理论上导出等效的建模方法，并且通过商业全波工具验证其精度。然后，应用等同的模型来预测不同部件对PCB的电磁耦合和具有许多小孔的外壳中PCB的电磁泄漏。结果表明，该方法具有高效率和可接受的准确性。

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