Compact Ultra-Wideband Monopole Antenna Loaded with Metamaterial


Al-Bawri, Samir Salem and Islam, Md. Shabiul and Goh, Hui Hwang and Wong, Hin Yong and Narbudowicz, Adam and Jamlos, Mohd Faizal and Jusoh, Muzammil and Islam, Mohammad Tariqul and Khan, Rizwan and Sabapathy, Thennarasan (2020) Compact Ultra-Wideband Monopole Antenna Loaded with Metamaterial. Sensors (Switzerland), 20 (3). pp. 1-15. ISSN 1424-8220

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A printed compact monopole antenna based on a single negative (SNG) metamaterial is proposed for ultra-wideband (UWB) applications. A low-profile, key-shaped structure forms the radiating monopole and is loaded with metamaterial unit cells with negative permittivity and more than 1.5 GHz bandwidth of near-zero refractive index (NZRI) property. The antenna offers a wide bandwidth from 3.08 to 14.1 GHz and an average gain of 4.54 dBi, with a peak gain of 6.12 dBi; this is in contrast to the poor performance when metamaterial is not used. Moreover, the maximum obtained radiation efficiency is 97%. A reasonable agreement between simulation and experiments is realized, demonstrating that the proposed antenna can operate over a wide bandwidth with symmetric split-ring resonator (SSRR) metamaterial structures and compact size of 14.5 × 22 mm2 (0.148 λ0 × 0.226 λ0) with respect to the lowest operating frequency.

Item Type: Article
Uncontrolled Keywords: Antennas (Electronics), monopole antenna, ultra-wideband (UWB), wideband, ENG metamaterial, near-zero refractive index (NZRI)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics > TK7871 Electronics--Materials
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Suzilawati Abu Samah
Date Deposited: 22 Dec 2020 06:31
Last Modified: 22 Dec 2020 06:31


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