归一化站点衰减中的天线方向图效应

1999 IEEE International Symposium on Electromagnetic Compatability. Symposium Record (Cat. No.99CH36261) Pub Date : 1999-08-02 DOI:10.1109/ISEMC.1999.810193

R. McConnell

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引用次数: 2

摘要

在ANSI C63.4垂直极化归一化站点衰减(NSA)的开发中，使用由短偶极子产生的e场正弦方向图来解释作为天线方向图的函数而发生的附加衰减。对于存在方向图数学表达式的任何类型的天线，建立了包含方向图因子的方向图依赖的NSA方程。对于共振偶极子、双圆锥和对数周期，发现与现有标准的分贝差异很小，从而增加了对当前标准效用的信心。

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Antenna pattern effects in normalized site attenuation

In the ANSI C63.4 development of normalized site attenuation (NSA) for vertical polarization the E-field sine pattern generated by short dipoles was used to account for the additional attenuation that occurs as a function of the antenna patterns. A pattern dependent NSA equation is developed incorporating antenna pattern factors for any types of antennas for which mathematical expressions of the patterns exist. For resonant dipoles, biconicals and log-periodics the decibel differences from the existing standard have been found to be small, leading to increased confidence in the utility of the present standard.

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来源期刊

1999 IEEE International Symposium on Electromagnetic Compatability. Symposium Record (Cat. No.99CH36261)

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