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首页> 外文期刊>Microwaves, Antennas & Propagation, IET >Bandwidth enhancement in coplanar waveguide-fed slot antennas designed for wideband code division multiple access/wireless local area network/ worldwide interoperability for microwave access applications
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Bandwidth enhancement in coplanar waveguide-fed slot antennas designed for wideband code division multiple access/wireless local area network/ worldwide interoperability for microwave access applications

机译：共面波导馈电缝隙天线的带宽增强，该宽带天线设计用于宽带码分多址/无线局域网/微波接入应用的全球互通性

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摘要

A multiband coplanar waveguide-fed slot antenna design is proposed for use in wireless and mobile communication applications. This antenna was designed on a single-layer printed circuit board FR4 substrate featuring a permittivity εr = 4.4, a loss tangent tan δ = 0.0245 and a thickness of h = 1.6 mm. The antenna consists of a T-shaped signal strip and a U-shaped conducting strip placed on the upper side of the T-shaped signal strip. After simply tuning the slot parameters of the ground plane, the proposed antenna can be used in the following operations: wireless local area networks at 2.4/5.2/5.8 GHz, worldwide interoperability for microwave access at 2.5/3.5/5.5 GHz and wideband code division multiple access at 1.92-2.17 GHz. The -10 dB bandwidth measured for the proposed antennas was 109.2% (1.85-6.3 GHz). The bandwidth was enhanced by choosing suitable combinations of the upper and lower ground slots. The geometrical parameters were examined to optimise the performance of the proposed antenna. The results of the return loss, far-field H- and E-planes radiation patterns, gain and radiation efficiency of the proposed antenna are presented and discussed herein. The antenna size of the radiation area and the ground plane was 50 × 50 mm2. Detailed simulations and experiments were conducted to optimise broadband operations, and the measured results concurred with the simulated results.
机译：提出了一种多频带共面波导馈电缝隙天线设计，用于无线和移动通信应用。该天线设计在单层印刷电路板FR4基板上，该基板的介电常数为ε r = 4.4，损耗角正切tan δ = 0.0245，厚度为 h = 1.6毫米。天线由T形信号条和放置在T形信号条上侧的U形导电条组成。在简单地调整了接地平面的缝隙参数之后，建议的天线可以用于以下操作：2.4 / 5.2 / 5.8 GHz的无线局域网，2.5 / 3.5 / 5.5 GHz的微波接入的全球互通性以及宽带码分在1.92-2.17 GHz下进行多址访问。建议天线测得的-10 dB带宽为109.2％（1.85-6.3 GHz）。通过选择上，下接地插槽的合适组合来提高带宽。检查了几何参数以优化所提出天线的性能。本文介绍并讨论了回波损耗，远场 H -和 E 辐射图，所提出天线的增益和辐射效率的结果。辐射区域和接地平面的天线尺寸为50×50 mm 2 。进行了详细的仿真和实验以优化宽带操作，并且测量结果与仿真结果一致。

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