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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >A novel wideband high-gain modified biquad dipole antenna
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A novel wideband high-gain modified biquad dipole antenna

机译：一种新颖的宽带高增益改良双二极天线

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摘要

This article thoroughly investigates a novel modified biquad dipole antennawith a simple structure, wideband, high-gain and linear polarization key featuresfor wireless communication systems fabricated on FR4 substrate. Theproposed antenna is investigated using circular wire loop antenna designingand is, then, extended to a strip structure antenna. Here, a circular reflector isemployed to achieve maximum gain, while a coax line feeds the dipole element.Additionally, the presence of a balun, or lack thereof, is examined. Thebazooka balun balances the coaxial cable and increases the bandwidth. Consequently,a wide bandwidth and a triple bandwidth are achieved. The resultingparameters demonstrate that the entire S, partial L and C IEEE radio bandscomprise the bandwidth of the proposed antenna. The simulated current distribution,experimented and simulated efficiency, radiation pattern, reflectioncoefficient and gain of the designed antenna are also examined. The simulationand experimentation results exhibit an impedance bandwidth of 105.4%(1.3-4.2 GHz) for (S_(11) < −10 dB). The broadside radiation pattern fills theentire band with maximum simulated and measured gains of 11.8 and11.02 dBi, respectively. The simulated and measured results tie in closely witheach other.
机译：本文彻底研究了一种新颖的改进型双二阶偶极天线，该结构具有简单的结构，宽带，高增益和线性极化的关键特性，适用于在FR4基板上制造的无线通信系统。使用圆线环形天线设计研究了拟议的天线，然后将其扩展为带状结构天线。在这里，使用圆形反射镜以实现最大增益，而同轴电缆馈入偶极子。此外，还要检查平衡-不平衡变换器的存在或不存在。火箭筒巴伦平衡了同轴电缆并增加了带宽。结果，实现了宽带宽和三倍带宽。所得参数表明，整个S，部分L和C IEEE无线电频带均包含所建议天线的带宽。还对设计天线的仿真电流分布，实验和仿真效率，辐射方向图，反射系数和增益进行了检查。仿真和实验结果表明，对于（S_（11）<-10 dB），阻抗带宽为105.4％（1.3-4.2 GHz）。宽边辐射方向图以11.8和11.02 dBi的最大模拟和实测增益填充整个频带。模拟和测量结果彼此紧密联系。

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