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引用次数: 1
摘要
美国联邦通信委员会(FCC)和欧洲共同体标准(European Community Standards)要求，辐射发射测试必须在一个开放的测试场地进行，在那里，被测试设备和接收天线放置在金属接地面上。该站点的校准称为归一化站点衰减，并在ANSI标准053.4中规定。C63.4中概述的程序是基于具有无限范围的完美导电地平面的模型。本文讨论了实际地平面有限电导率对场地衰减的影响问题。特别地，它描述了在无限大的铜和钢平面上的场地衰减模拟以及土壤模型。结果表明，只要是金属，有限导电性的地平面几乎和无限导电性的地平面一样好。
The effect of a finite conductivity ground plane on open area site attenuation
The FCC and European Community Standards require radiated emission testing to be conducted at an open area test site where the device being tested and the receiving antenna are placed over a metal ground plane. The calibration of this site is called normalized site attenuation and is specified in ANSI Standard 053.4.. The procedure outlined in C63.4 is based on a model with a perfectly (conducting ground plane of infinite extent. This paper addresses the question of the effects of finite conductivity of the real the ground plane on site attenuation. In particular, it describes site attenuation simulations over infinitely large copper and steel planes as well as a soil model. The results show that finite conductivity ground planes are almost as good as infinite ones as long as they are metal.
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