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首页> 外文期刊>Microwaves, Antennas & Propagation, IET >Design of reconfigurable coplanar waveguide-fed planar antenna for multiband multi-input–multi-output applications
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Design of reconfigurable coplanar waveguide-fed planar antenna for multiband multi-input–multi-output applications

机译：用于多频带多输入多输出应用的可重构共面波导馈电平面天线设计

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摘要

A new design of frequency reconfigurable planar coplanar waveguide-fed array antenna for multiband MIMO (multi-input–multi-output) applications is presented in this study. The proposed two elements MIMO array antenna consists of two identical basic reconfigurable antenna elements. Each basic antenna structure consists of two quarter-wavelength resonators and is capable of operating in WLAN (wireless area network) and WiMAX frequency bands. The centre frequencies of the operating bands are controllable independently by tuning the length of the corresponding resonators. Employing switches on the proposed structure has led to three different switchable operations [WiMAX (3.36–3.7 GHz), WLAN (5–5.8 GHz) and WiMAX and WLAN (3.17–3.77 and 5.13–5.88 GHz) simultaneously]. Moreover, by arranging the antenna elements in an orthogonal alignment in space and using polarisation diversity technique, the multipath performance of the presented MIMO antenna is improved. The fabricated reconfigurable MIMO antenna has a compact size of 48.5 × 25 mm2 while having more than 16 dB isolation level between its ports for all its various switchable performances. The measured results reveal that the proposed antenna can be a good candidate for modern multiband MIMO applications.
机译：本研究提出了一种用于多频带MIMO（多输入多输出）应用的频率可重构平面共面波导馈电阵列天线的新设计。所提出的两个元件的MIMO阵列天线由两个相同的基本可重构天线元件组成。每个基本天线结构都包含两个四分之一波长谐振器，并且能够在WLAN（无线局域网）和WiMAX频带中运行。通过调整相应谐振器的长度，可独立控制工作频带的中心频率。在提议的结构上使用交换机导致了三种不同的可切换操作[WiMAX（3.36-3.7 GHz），WLAN（5-5.8 GHz）和WiMAX和WLAN（3.17-3.77和5.13-5.88 GHz）同时出现]。此外，通过在空间中以正交对准的方式布置天线元件并使用极化分集技术，改善了所提出的MIMO天线的多径性能。制成的可重配置MIMO天线具有48.5×25 mm2的紧凑尺寸，同时在其端口之间具有超过16 dB的隔离度，以实现所有各种可切换性能。测量结果表明，拟议的天线可以成为现代多频带MIMO应用的理想选择。

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