用于无线传感器网络的开关波束Yagi-Uda天线设计

2016 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2016-10-01 DOI:10.1109/ATC.2016.7764813

Hoang Nam Dao, M. Krairiksh, Dinh Thanh Le

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引用次数: 3

摘要

在本文中，我们提出了一种Yagi-Uda天线的设计，它可以以45度的步进切换来实现不同角度的辐射方向图。天线覆盖srd的ISM频段，中心频率为2.45 GHz。八根八木天线组合成一个圆圈。每个Yagi-Uda天线由一个弯曲反射器、一个弯曲驱动器和一个弯曲定向器组成。不同的Yagi-Uda天线通过PIN二极管共享弯曲反射器。仿真结果表明，8个开关波束覆盖了E平面上的所有方向，特定方向波束宽度约为60度。主瓣增益大于5.5dBi，而副瓣增益保持比主瓣小11dB。由于其模式切换能力和简单的设计，该天线可用于无线传感器网络中的主传感器，或用于认知无线电中的通信设备。

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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A design of switched-beam Yagi-Uda antenna for wireless sensor networks

In this paper, we present a design of the Yagi-Uda antenna, which can be switched to achieve radiation patterns toward different angles with a step of 45 degree. The antenna covers the ISM band for SRDs with a center frequency of 2.45 GHz. There are eight Yagi-Uda antennas combined in a circle form. Each Yagi-Uda antenna consists of a bended reflector, a bended driven and a bended director. The bended reflector is shared for different Yagi-Uda antenna by PIN diodes. Simulated results show that eight switching beams covered all directions in E plane with particular direction beam-width around of 60 degree. The gain of the main lobe is greater than 5.5dBi, whereas the side lobe is kept 11dB smaller than the main lobe. Thanks to the pattern switchable ability and its simple design, the antenna can be used for the master sensors in wireless sensor networks, or for communicating devices in cognitive radios.

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2016 International Conference on Advanced Technologies for Communications (ATC)

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