Radiation Pattern of a 2.4/ 5.2GHz Laptop Internal Antenna: Near Field Spherical Range Measurements and Full Wave Analysis

2007 International workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications Pub Date : 2007-03-21 DOI:10.1109/IWAT.2007.370105

J. Guterman, Yahya Rahmat-Samii, Antonio A. Moreira, Cust6dio Peixeiro

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引用次数: 10

Abstract

The omnidirectionality of a laptop internal antenna can be severely affected by the laptop electrically large structure. Therefore, an accurate evaluation of the radiation pattern requires a proper modelling of the laptop housing effects. Due to the large laptop dimensions, this antenna-PC integrated approach leads to a minimum far field distance of at least 12 meters at the WLAN frequency bands. Such a large distance is not easily accommodated in indoor far-field measurement ranges. A near field measurement technique seems appropriate to solve the problem. This study reports 2.4/5.2 GHz laptop internal antenna housing effects on the far field radiation pattern. The full wave simulations are compared with measurement results obtained in UCLA near field spherical range. A very good agreement obtained for all the investigated scenarios confirms that the near field technique is adequate to deal with this type of measurement problems.

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2.4/ 5.2GHz笔记本内置天线的辐射方向图:近场球面距离测量和全波分析

笔记本电脑内部天线的全向性会受到笔记本电脑电气大结构的严重影响。因此，对辐射模式的准确评估需要对笔记本电脑外壳效应进行适当的建模。由于笔记本电脑的尺寸较大，这种天线- pc集成的方法导致WLAN频段的最小远场距离至少为12米。如此大的距离在室内远场测量范围内是不容易适应的。一种近场测量技术似乎可以解决这个问题。本研究报告了2.4/5.2 GHz笔记本电脑内部天线外壳对远场辐射方向图的影响。将全波模拟结果与UCLA近场球面范围内的实测结果进行了比较。所研究的所有场景都得到了很好的一致性，证实了近场技术足以处理这类测量问题。

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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来源期刊

2007 International workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications

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