Extension of the emission measurements for alternative test methods above 1 GHz for unintentional electromagnetic radiators

2015 IEEE International Symposium on Electromagnetic Compatibility (EMC) Pub Date : 2015-09-14 DOI:10.1109/ISEMC.2015.7256203

B. Menssen, D. Hamann, H. Garbe

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引用次数: 3

Abstract

The standards by CISPR and IEC describe different procedures for the measurement of the radiated disturbance of electronic equipment. However, these standards only account for measuring the maximum radiated electric field strength for a specified number of sampling points. This leads to the assumption that especially for the characteristics of unintentional electromagnetic radiators, the specified amount of sampling points is not sufficient so that the true maximum of the electric field strength might be undetermined. Therefore, stochastic approaches were derived to predict the maximum radiated electric field strength based on the total radiated power. Above 1 GHz and without using a reverberation chamber, the determination of the total radiated power is very time consuming. Hence, a new approach is presented in this paper which uses standardized sampling approaches from alternative test methods to predict the maximum radiated electric field strength from a reduced number of angles of observation. Its accuracy and applicability as an extension for the emission measurements of unintentional electromagnetic radiators is assessed.

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非故意电磁辐射器1 GHz以上替代测试方法发射测量的扩展

CISPR和IEC的标准描述了测量电子设备辐射干扰的不同程序。然而，这些标准只考虑测量特定数量采样点的最大辐射电场强度。这导致了这样的假设，特别是对于非故意电磁辐射体的特性，规定的采样点数量是不够的，因此可能无法确定电场强度的真正最大值。因此，导出了基于总辐射功率预测最大辐射电场强度的随机方法。在1 GHz以上且不使用混响室的情况下，总辐射功率的测定非常耗时。因此，本文提出了一种新的方法，即使用替代测试方法的标准化采样方法，从减少的观测角度来预测最大辐射电场强度。评估了其作为非故意电磁辐射辐射测量的延伸的准确性和适用性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2015 IEEE International Symposium on Electromagnetic Compatibility (EMC)

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