September 2014 Vol. 2 No. 1

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Kenari MA

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Original Research Articles

Novel MTM Patch Antenna for Broad-Band Portable Units

Mohammad Alibakhshi-Kenari

School of Electrical and Communication Engineering, Shahid Bahonar University of Kerman, Iran

E-mail: makenari@mtu.edu

Accepted August 29, 2014

Abstract

In this paper, a squeeze broad-band antenna based on the composite right-left handed transmission line (CRLH-TL) structure with enhancement gain is proposed and investigated. With CRLH metamaterial technology embedded, the proposed squeeze broad-band antenna is presented with best in bandwidth, size, efficiency and radiation patterns. To realize characteristics of the antenna, the printed I-shaped gaps into the rectangular radiation patches are used. This antenna is constructed of the four unit cells, also presented antenna is designed from 2.2 GHz to 3.05 GHz which corresponding to 32% bandwidth. The overall size of the presented antenna is 22mm×7mm×0.8mm or 0.16λ0× 0.05λ0 × 0.006λ0 at the operating frequency f=2.2GHz (where λ0 is free space wavelength). The radiation peak gain and the maximum efficiency which occurs at 3.05GHz are 4.1dBi and 68.86%, respectively.

Keywords: Squeeze antenna, Broad-band antenna, Composite Right/Left-Handed Transmission Line (CRLH-TL), Metamaterial (MTM)