An Investigation of Gain Enhancement of Microstrip Antenna by Using Inhomogeneous Triangular Metamaterial

2011 International Conference on Computational Intelligence and Communication Networks Pub Date : 2011-10-07 DOI:10.1109/CICN.2011.30

A. Panda, A. Sahu

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引用次数: 9

Abstract

Metamaterial have been shown to enhance specific performance parameters of low profile antennas. In this paper we investigate appreciably enhancement of the gain & radiation pattern of a low profile micro strip patch antenna by placing a metamaterial slab above it (as a super strate) using CST MWS simulator. This paper proposes a metamaterial super strate surface as a reflective surface for micro strip patch antenna (MPA). The MTM structure was a combination of the triangular SRR (TSRR) and the wire strip (WS) to obtain negative values of permittivity & permeability. The gain of the MPA with MRS is around 5 dB higher than that of conventional MPA on FR4 substrate. These improvements were due to negative refraction characteristics of LHM structure that converts into super-lens, when placed in front of the antenna. The small spacing between MRS and the patch surface was another merit in the present design, which was as low as ?/10 as it results in low profile antenna design, that will suits in modern wireless communication system.

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利用非均匀三角形超材料增强微带天线增益的研究

超材料已被证明可以提高低轮廓天线的特定性能参数。在本文中，我们研究了增益的显著增强。利用CST MWS模拟器，通过在低轮廓微带贴片天线上放置超材料板(作为超层)，模拟了微带贴片天线的辐射方向图。提出了一种超材料超层表面作为微带贴片天线的反射表面。MTM结构是三角形SRR (TSRR)和线带(WS)的组合，以获得负的介电常数&渗透率。与传统的FR4基板上的MPA相比，带MRS的MPA的增益提高了约5db。这些改进是由于LHM结构的负折射特性，当放置在天线前面时，它可以转换为超级透镜。本设计的另一个优点是MRS与贴片表面之间的间距小，小到1 /10，这使得天线设计更小，更适合现代无线通信系统。

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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2011 International Conference on Computational Intelligence and Communication Networks

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