Compact switched and reconfigurable 4-ports beam antenna array for MIMO applications

2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI:10.1109/IMWS2.2011.6027210

Viet-Anh Nguyen, P. Ook

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引用次数: 12

Abstract

In this paper, we analyze and introduce a practical design for a switched beam planar antenna that can be implemented as a compact and low cost switched and/or reconfigurable beam antenna array. The antenna is composed of a four ports antenna array based on arranged eight L-shaped quarter-wavelength slot antenna elements. This type of antenna array is a planar structure and its maximum directional radiation beam pattern presents in azimuth plane with the covering of 360 degree. The operation of antenna array is based on the statuses of ON/OFF stage of PIN diodes in each individual slot antenna element and the combined signals from four ports. Consequently, by proper controlling the stage of PIN diodes, the antenna can exposes its characteristic of switchable and/or reconfigurable beam patterns in φ-plane. The antenna array size is about 56 mm in square with four ports. To prove the concept, a 2.5–2.8 GHz switched-beam antenna for WLAN applications in MIMO is simulated and fabricated.

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紧凑的开关和可重构的4端口波束天线阵列的MIMO应用

在本文中，我们分析并介绍了一种实际设计的开关波束平面天线，它可以实现为一个紧凑和低成本的开关和/或可重构波束天线阵列。该天线由基于布置的8个l形四分之一波长槽天线单元的四端口天线阵列组成。这种天线阵列为平面结构，其最大定向辐射波束方向图呈现在方位平面上，360度覆盖。天线阵列的工作是基于每个单独的槽天线单元中PIN二极管的on /OFF级状态和来自四个端口的组合信号。因此，通过适当控制PIN二极管的级，天线可以在φ-平面上显示其可切换和/或可重构的波束方向图的特性。天线阵列尺寸约为方形56毫米，有四个端口。为了验证这一概念，模拟并制作了用于MIMO中WLAN应用的2.5-2.8 GHz开关波束天线。

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

2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals

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