多波段六边形弯曲分形天线的设计

N. Sharma, Jaspreet Singh, Vipul K. Sharma
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引用次数: 3

摘要

本文采用六边形和弯曲几何结构设计了一种新的分形天线,并对其各种特性进行了研究。该天线设计在相对介电常数为4.4,厚度为1.6mm的低成本易获得的FR4玻璃环氧基板上。利用高频结构模拟器(HFSS)第13版对天线进行了设计和仿真。采用插入馈电技术优化设计天线的基本结构,实现高增益和高回波损耗。仿真结果表明,该天线工作在3.14GHz、4.87GHz、5.74GHz、6.55GHz、8.62GHz和9.85GHz 6个频段,回波损耗、增益和驻波比均处于可接受水平。并制作了两种天线,用VNA(矢量网络分析仪)对其进行了测试,实验结果与仿真结果吻合较好。该天线可在6个不同频段谐振,包括WLAN (4.82-5.95GHz)、点对点高速无线通信(5.92-8.5GHz)等。所提出的分形天线在低频和高频的最大增益分别达到8.80dB和7.59dB。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Design of Hexagonal Meander Fractal Antenna for Multiband Applications
A novel design of the fractal antenna is designed using hexagonal and meander geometry and its various characteristics are investigated in this paper. Proposed antenna is designed on low-cost easily available FR4 glass epoxy substrate with relative permittivity of 4.4 and a thickness of 1.6mm. The antenna is designed and simulated by using High Frequency Structure Simulator (HFSS) version 13. The basic structure of designed antenna is optimized by applying inset feeding technique to achieve the high value of gain and return loss. Simulated results of proposed antenna reveal that the antenna works on six frequency bands of operation such as 3.14GHz, 4.87GHz, 5.74GHz, 6.55GHz, 8.62GHz and 9.85GHz with a value of return loss, gain and VSWR at acceptable level. Both the antennas are also fabricated and then tested using VNA (Vector Network Analyzer), which shows that the experimental results are in good agreement with the simulated results. Proposed antenna resonates at six different frequency bands including WLAN (4.82-5.95GHz), point to point high-speed wireless communication (5.92-8.5GHz) etc. The maximum gain of the proposed fractal antenna can reach 8.80dB at lower frequency band and 7.59dB at upper-frequency band.
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