A new configurable beamwidth antenna using cylindrical electromagnetic Band Gap

A. Edalati, T. Denidni
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引用次数: 1

Abstract

In modern wireless communication systems, agile antennas with a configurable beamwidth have been attracted a lot of interest. To fulfill several requirements, various techniques for designing variable-beamwidth antennas have recently been proposed. In this work, the authors propose a new cylindrical electromagnetic band gap (CEBG) structure for modifying the radiation beamwidth. CEBG structures composed of metallic wires have been introduced in (H. Boutayeb, et al., 2006). These structures are radialy and circularly periodic and present pass-bands and stop-bands to TM cylindrical electromagnetic waves when they are excited in their center. By introducing a defect and modifying the number of the periodic surfaces, a directive radiation with variable beamwidth can be obtained. By studying the field distribution in the H-plane, significant size reduction and power supply were achieved. The proposed structure shows good performances in terms of beamwidth configurability with less power supply and less active elements. The obtained results is presented and discussed in the paper.
一种利用圆柱形电磁带隙的新型可配置波束宽度天线
在现代无线通信系统中,具有可配置波束宽度的敏捷天线引起了人们的广泛关注。为了满足不同的需求,最近提出了各种设计变波束宽度天线的技术。在这项工作中,作者提出了一种新的圆柱形电磁带隙(CEBG)结构来改变辐射波束宽度。由金属丝组成的CEBG结构已被引入(H. Boutayeb等,2006)。这些结构具有径向和圆周期,在其中心被激发时对TM圆柱电磁波存在通带和阻带。通过引入缺陷和修改周期曲面的数目,可以得到变波束宽度的定向辐射。通过对h平面场分布的研究,实现了显著的尺寸缩小和功率供应。所提出的结构在波束宽度可配置性方面具有良好的性能,且功耗较小,有源元件较少。本文对所得结果进行了介绍和讨论。
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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