On the Effect of Fractal Electromagnetic Band Gap on Antenna Performance

被引：3

作者：

Kumar, Raj ^{[1
]}

Shinde, Jayashree P. ^{[1
]}

机构：

[1] Deemed Univ, Def Inst Adv Technol, Dept Elect Engn, Pune 411025, Maharashtra, India

来源：

IETE JOURNAL OF RESEARCH | 2010年 / 56卷 / 06期

关键词：

Electromagnetic band gap; Fractal geometry; Microstrip antenna; Resonant frequency; Surface wave suppression;

D O I：

10.1080/03772063.2010.10876322

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents the design of electromagnetic band gap (EBG) structure using fractals geometry and its effect on antenna performance. The EBG structure has been designed on substrate epsilon(r)=4.3 and thickness h=1.53 mm. The 1st iterative EBG structure offers the surface wave suppression around 20 dB down from 2.94 to 4.58 GHz corresponds to 43.62% bandwidth. The experimental results of 2nd iterative EBG structure revealed the surface wave suppression in two bands from 2.45 to 3.36 GHz and from 8.52 to 11.02 GHz. The surface wave suppression bandwidth for both the bands is 31.325 and 25.59%, respectively. The antenna designed with the proposed EBG in same plane exhibits improvement in the bandwidth by 20.5%, gain by 2.44 dB and reduction in back lobe in comparison to antenna without EBG.

引用

页码：333 / 339

页数：7

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