准确测量EMC用双锥天线的天线系数 |
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引用本文: | 孟东林. 准确测量EMC用双锥天线的天线系数[J]. 安全与电磁兼容, 2010, 0(6): 9-12. DOI: 10.3969/j.issn.1005-9776.2010.06.001 |
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作者姓名: | 孟东林 |
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作者单位: | 中国计量科学研究院; |
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基金项目: | 中国计量科学研究院基本科研业务费项目(AKY1019)资助 |
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摘 要: | 阐述了用自由空间天线系数对于产品辐射骚扰测试的原因,介绍了测量自由空间天线系数的几种方法,包括即将于2012年发布的CISPR 16-1-6 CD2中双锥天线的天线系数的最新测量方法,以及目前应用比较广泛的ANSI C 63.5:2006中的方法。结合一系列实测数据总结了如何提高测量准确性的一些实用措施,如电缆的选用、衰减器的作用、测量仪器以及背景噪声抑制措施等。
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关 键 词: | 天线系数 标准场地法 开阔场 双锥天线 |
Measuring the Antenna Factor of Biconical Antenna Accurately |
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Abstract: | A comprehensive comparison and analysis have been made on how to measure the free space antenna factor of biconical antennas.The essential role of free space antenna factor(FAFS) to EMI is expatiated;then the related methods to measure FAFS are introduced,including CISPR 16-1-6 CD2 and ANSI C 63.5,based on lots of measurements.Some improvement techniques have been introduced to make accurate measurement in a narrow OATS(40 m×12 m) for biconical antennas,which is validated by comparing the results with that measured in an OATS of 60 m×30 m. |
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Keywords: | antenna factor standard site method OATS biconical antenna |
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