2×2 2.4 GHz MIMO天线，用于WLAN应用

2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE) Pub Date : 2015-12-01 DOI:10.1109/ICMOCE.2015.7489695

R. Anuvind, S. Joseph, A. Kothari

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引用次数: 7

摘要

多输入多输出(MIMO)技术已成为下一代无线通信系统的关键技术，因为它可以实现非常高的数据传输速率。与单输入单输出(SISO)系统不同，MIMO系统提高了无线传输的容量和数据速率。在MIMO中，发射器和接收器部分使用多个天线。本文讨论了一种用于无线局域网的双元MIMO天线的设计与仿真。MIMO天线系统由两个辐射元件组成，在一个低成本的厚度为1.6mm的FR4基板上。该天线的工作频率为2.4 GHz。天线的带宽为60MHz，从2.38GHz扩展到2.47 GHz，适合WLAN操作。两个天线单元之间的距离为3mm (0.05λ)。所设计天线的增益约为7dB。在天线的接平面上增加了缺陷接地结构(DGS)，以增强两个辐射元件之间的隔离。使用缺陷接地结构，两个辐射元件之间的隔离度可以从-13 dB降低到-20dB。在ANSOFT HFSS软件中进行了设计和仿真。制作了天线，并使用安捷伦N5230A网络分析仪进行了回波损耗测试。

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2×2 MIMO antenna at 2.4 GHz for WLAN applications

Multiple Input Multiple Output (MIMO) techniques have merged as a key technology for the next generation wireless communication systems because they enable very high data rate transmission. Unlike the Single Input Single Output (SISO) systems MIMO systems enhance the capacity and data rate of wireless transmission. In MIMO multiple antennas are used at the transmitter and receiver sections. This paper discusses the design and simulation of a two-element MIMO antenna which can be used for WLAN applications. The MIMO antenna system consists of two radiating elements on a single low-cost FR4 substrate with a thickness of 1.6mm. The proposed antenna operates at 2.4 GHz. The bandwidth of the antenna is 60MHz, which extends from 2.38GHz to 2.47 GHz which is suitable for WLAN operations. The distance between the two antenna elements is 3mm (0.05λ). The gain of the designed antenna is around 7dB. Defected Ground Structure (DGS) has been added on the ground plane of the antenna to enhance isolation between the two radiating elements. Isolation between the two radiating elements could be decreased upto -20dB from -13 dB with the use of defected ground structure. The design and simulation has been carried out in ANSOFT HFSS software. Antenna has been fabricated and testing for return loss was performed using Agilent N5230A Network Analyzer.

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来源期刊

2015 International Conference on Microwave, Optical and Communication Engineering (ICMOCE)

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