磁介电材料电磁带隙结构的低轮廓宽带天线

2007 International workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications Pub Date : 2007-03-21 DOI:10.1109/IWAT.2007.370166

L. Yousefi, B. Mohajer-Iravani, O. Ramahi

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引用次数: 6

摘要

本文介绍了磁介质材料的一种新应用。利用磁介电材料，设计了一种紧凑的宽带电磁带隙结构。数值计算结果表明，该EBG的同相反射带宽为70%，比同频率谐振的传统EBG的同相反射带宽提高了数倍，而其单元尺寸更小。采用该EBG作为接地平面，设计了一种低轮廓的单向螺旋天线，工作频率为8至18 GHz。设计的低轮廓天线的驻波比和增益与PEC背背螺旋天线相当(背背为λ /4)，同时实现了72%的轮廓减小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Low Profile Wide Band Antennas using Electromagnetic Bandgap Structures with Magneto-Dielectric Materials

In this paper, a novel application for magneto-dielectric materials is introduced. Using magneto-dielectric materials, a compact wide band electromagnetic bandgap (EBG) structure is designed. The numerical results show that this EBG has an in-phase reflection bandwidth of 70% which is several times greater than a conventional EBG resonating at the same frequency while its cell size is smaller. Using this EBG as the ground plane, a low profile unidirectional spiral antenna is designed to operate over the 8 to 18 GHz. The VSWR and gain of the designed low profile antenna is shown to be comparable to the PEC backed spiral antenna (backing at lambda/4), while achieving a 72% reduction in profile.

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来源期刊

2007 International workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications

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