A Simultaneous Time-Domain Measurement Method for Electric and Magnetic Fields Within the Test Chamber of Radiated Immunity

Weiheng Shao, Caixu Yu, Yinghui Chen, Liuxing He,Lin Wen,Cui Meng

IEEE Transactions on Antennas and Propagation（2025）SCI 2区

Cited 0|Views5

Abstract

This paper presents a novel time-domain method for simultaneously characterizing electric and magnetic fields of test chamber in integrated circuit radiation immunity tests. The proposed approach is based on a symmetric vertical crossed-loop antenna and involves both a frequency-domain calibration process and a time-domain reconstruction process. Unlike the traditional single electric or magnetic field antenna characterization methods in IEC 62132 - 8, this method can simultaneously induce all three fields required during the radiation immunity test, namely Hx, Hy, and Ez. The frequency-domain calibration process decouples the original induced E-field and H-field signals from the aliased measurement port voltage signals. The time-domain reconstruction process rebuilds the time-domain waveforms of Hx, Hy, and Ez from the original induced E-field and H-field signals. The calibration effectiveness, accuracy, robustness, and frequency range of the proposed method are analyzed and discussed. Finally, three typical electromagnetic field waveforms, including a sinusoidal signal, a pulse modulated sinusoidal signal, and a double exponential strong pulse signal, are used to demonstrate the effectiveness of the proposed method.

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Key words

Time-domain measurement,electromagnetic susceptibility,electromagnetic field measurement,device-level test,electromagnetic coupling,stripline

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【要点】：本文提出了一种新的时域测量方法，能够同时测量集成电路辐射免疫测试中测试室内的电场和磁场，实现了一体化测量，提高了测试效率。

【方法】：该方法基于对称垂直交叉环天线，结合频率域校准过程和时域重构过程，能够同时诱导并测量辐射免疫测试所需的Hx、Hy和Ez三种场。

【实验】：通过使用三种典型电磁场波形（正弦信号、脉冲调制正弦信号和双指数强脉冲信号）进行实验验证，证明了该方法的有效性，实验采用的数据集未在文中明确提及。