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Performance Improvement of Fractal Antenna with Electromagnetic Band Gap (EBG) and Defected Ground Structure for Wireless Communication

机译：无线通信中具有电磁带隙（EBG）和变形地面结构的分形天线的性能改进

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摘要

This paper is aimed at developing a Sierpinski carpet fractal antenna with electromagnetic band gap (EBG) in the ground plane. This is designed using Rogers Duroid 5880 substrate, and validation of model is done using extensive simulations in CST MWS 2011. Several iterations are done and optimized to give the best result. The simulation results showed return loss of -22.25 dB at 8.592 GHz for third iteration. There is an enhancement of bandwidth by 209% from 75 MHz (conventional patch antenna) to 234.4 MHz using SCFA with EBG and directivity of 4.4 dB at resonant frequency. It shows reduction in size of antenna, and the proposed antenna size is 17.2 x 20.5 mm2. This antenna works well in X-band communication (8-12 GHz) for ultra-wideband imaging for medical application and weather monitoring radars in satellite communication.
机译：本文旨在开发一种在地平面具有电磁带隙（EBG）的Sierpinski地毯分形天线。这是使用Rogers Duroid 5880基板设计的，并使用CST MWS 2011中的大量仿真对模型进行了验证。进行了多次迭代并进行了优化以得出最佳结果。仿真结果表明，第三次迭代在8.592 GHz下的回波损耗为-22.25 dB。使用具有EBG的SCFA和在共振频率下定向为4.4 dB的带宽，从75 MHz（常规贴片天线）到234.4 MHz，带宽提高了209％。它显示了天线尺寸的减小，建议的天线尺寸为17.2 x 20.5 mm2。该天线在X波段通信（8-12 GHz）中工作良好，可用于医疗应用的超宽带成像以及卫星通信中的天气监控雷达。

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