This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are creditedĭata Availability: All relevant data are within the paper.įunding: This work was supported by the Universiti Kebangsaan Malaysia through university research grant code no. Received: SeptemAccepted: ApPublished: May 27, 2015Ĭopyright: © 2015 Ahsan et al. Coles, Glasgow University, UNITED KINGDOM PLoS ONE 10(5):Īcademic Editor: Jonathan A. The measured radiation patterns, impedance bandwidths ( S11<-10 dB) and gains from the MSR loaded antenna prototype exhibit reasonable characteristics that can satisfy the requirements of UHF/microwave (5.8 GHz) RFID, WiMAX (3.5/5.5 GHz) and WLAN (5.2/5.8 GHz) applications.Ĭitation: Ahsan MR, Islam MT, Ullah MH, Singh MJ, Ali MT (2015) Metasurface Reflector (MSR) Loading for High Performance Small Microstrip Antenna Design.
Additionally, due to the assimilation of MSR, the overall realized gains have been upgraded to a higher value of 3.62 dBi, 6.09 dBi and 8.6 dBi for lower, middle and upper frequency band respectively.
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The investigation shows that utilization of MSR structure has significantly broadened the -10dB impedance bandwidth than the conventional patch antenna: from 540 to 632 MHz (17%), 467 to 606 MHz (29%) and 758 MHz to 1062 MHz (40%) for three distinct operating bands centered at 0.9, 3.5 and 5.5 GHz. The measured impedance bandwidth, radiation patterns and gain of the proposed MSR integrated antenna are compared with the obtained results from numerical simulation, and a good compliance can be observed between them.
The details of the design progress through numerical simulations and experimental results are presented and discussed accordingly. A custom made high dielectric bio-plastic substrate ( ε r = 15) is used for fabricating the prototype of the MSR embedded planar monopole antenna. The proposed MSR assimilated antenna comprises planar straight forward design of circular shaped radiator with horizontal slots on it and 2D metasurface formed by the periodic square metallic element that resembles the behavior of metamaterials. A meander stripline feed multiband microstrip antenna loaded with metasurface reflector (MSR) structure has been designed, analyzed and constructed that offers the wireless communication services for UHF/microwave RFID and WLAN/WiMAX applications.
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