半电波暗室低频场均匀性研究

发布时间：2019-07-28 20:28

【摘要】：现行的CISPR、ANSI等标准中,只提供了30 MHz以上的半电波暗室性能评估方法。然而,随着工作在30 MHz以下的电气设备与系统逐渐增多,现有标准已无法满足需求。为了准确的评估其电磁兼容性能,需要对30 MHz以下的半电波暗室性能进行评估。场均匀性是评价半电波暗室性能的主要指标,主要以其为研究对象,对铁氧体进行了理论分析与实验;并运用数值仿真的方法分析了半电波暗室在低频时的场均匀性。研究结果表明,运用外推法拟合得到铁氧体电磁参数是可行的,可应用于低频时暗室的仿真性能评估中,促进了低频段电磁兼容相关标准的研究。同时,该研究能对低频段暗室的设计建造提供一定的指导作用。
[Abstract]:In the current CISPR,ANSI and other standards, only more than 30 MHz semi-anechoic chamber performance evaluation method is provided. However, with the increasing number of electrical equipment and systems working below 30 MHz, the existing standards can no longer meet the demand. In order to evaluate its electromagnetic compatibility accurately, it is necessary to evaluate the performance of semi-anechoic chamber below 30 MHz. Field uniformity is the main index to evaluate the performance of semi-anechoic chamber, mainly taking it as the research object, the theoretical analysis and experiment of Ferrite are carried out, and the field uniformity of semi-electric dark chamber at low frequency is analyzed by numerical simulation method. The results show that it is feasible to fit the electromagnetic parameters of Ferrite by extrapolation method, which can be applied to the simulation performance evaluation of low frequency dark chamber and promote the research of low frequency band electromagnetic compatibility standards. At the same time, this study can provide some guidance for the design and construction of low frequency darkroom.
【作者单位】：南京信息工程大学电子与信息工程学院;南京信息工程大学气象灾害预报预警与评估协同创新中心;
【基金】：国家自然科学基金(61601233) 江苏省自然科学基金(BK20150918) 江苏省双创团队人才计划(SRCB201526) 江苏省南京信息工程大学“信息与通信工程”优势学科资助
【分类号】：TN03

【相似文献】