Report on an inter-laboratory comparison of EMC antenna factors on antennas used above 1 GHz

2003 IEEE Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.03CH37446) Pub Date : 2003-10-14 DOI:10.1109/ISEMC.2003.1236611

K. Hall

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Abstract

An inter-laboratory comparison of greater than 1 GHz antenna calibration was started in September 2002, managed by Hewlett-Packard. This study was started because data from six different calibrations of a horn antenna varied more than expected by National Physical Laboratory (UK). The variance was also more than that obtained in the very well defined and controlled study of an X-Band Horn antenna (Stubenrauch, 1996) study piloted by NIST. Initially three antennas were being circulated by ETS-Lindgren, Liberty Labs and NIST (US), Schwarzbeck, Rolf Heine, Rohde-Schwarz and CONFORMITAS (Germany), Austrian Research Center (Austria), NPL and Communications Research Laboratory (Japan). Four laboratories have completed the calibration. Preliminary results show worst case deviations between laboratories to be greater than 5dB. Some of variations appear to be abnormal spikes that do not follow the normally expected antenna trend and need to get resolved before supplying factors to a user/customer. One of the laboratories provided antenna pattern data that supports findings by Michael D, Foegelle (2002) and Christian Burns et al. (2003).

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1 GHz以上天线的EMC天线因子实验室间比较报告

2002年9月，一项大于1ghz天线校准的实验室间比较开始，由惠普公司管理。由于英国国家物理实验室对喇叭天线进行的六种不同校准的数据差异大于预期，因此开始了这项研究。方差也大于NIST对x波段喇叭天线(Stubenrauch, 1996)进行的非常明确和受控的研究。最初由ETS-Lindgren、Liberty Labs和NIST(美国)、Schwarzbeck、Rolf Heine、罗德-施瓦茨和CONFORMITAS(德国)、奥地利研究中心(奥地利)、国家物理实验室和通信研究实验室(日本)分发三个天线。四个实验室已完成校正工作。初步结果表明，实验室之间的最坏情况偏差大于5dB。有些变化似乎是不正常的尖峰，不遵循正常预期的天线趋势，需要在向用户/客户提供因子之前得到解决。其中一个实验室提供的天线方向图数据支持Michael D, Foegelle(2002)和Christian Burns等人(2003)的发现。

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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2003 IEEE Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.03CH37446)

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