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Open AccessArticle

Electrically Compact SRR-Loaded Metamaterial Inspired Quad Band Antenna for Bluetooth/WiFi/WLAN/WiMAX System

1
Space Science Center (ANGKASA), Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia
2
Research School of Electrical, Energy and Materials Engineering, College of Engineering & Computer Science (CECS), The Australian National University, Canberra 2601, Australia
3
Electronics and Communication Engineering, Khulna University, Khulna 9208, Bangladesh
4
Center of Advanced Electronics and Communication Engineering, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia
5
Centre for Radiation Sciences, Sunway University, Petaling Jaya 47500, Malaysia
*
Authors to whom correspondence should be addressed.
Electronics 2019, 8(7), 790; https://doi.org/10.3390/electronics8070790
Received: 27 May 2019 / Accepted: 5 June 2019 / Published: 15 July 2019
(This article belongs to the Section Microwave and Wireless Communications)
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Abstract

In this paper, we reveal a concept of low-profile Split Ring Resonator loaded metamaterial inspired antenna for Bluetooth/WiFi/WLAN/WiMAX communication systems. The antenna’s overall dimensions are 30 × 31 mm2 where two metamaterial unit cells are placed parallel to each other and a zig-zag feed line is connected with the SubMiniature version A connector. The defected ground technique was used to improve the antenna’s operational bandwidth. The computer simulation technology Microwave Studio was used to design and perform the numerical investigation, and the antenna was fabricated on FR-4 dielectric material. The Agilent N5227A VNA and anechoic chamber-based Satimo Star Lab were used to measure the antenna’s scattering parameters, voltage standing wave ratio, gain, efficiency and radiation patterns. The proposed metamaterial antenna had 200 MHz (2.40–2.60 GHz) and 390 MHz (3.40–3.79 GHz) overall bandwidth, which are similar to the simulated data. The measured results were applicable for Bluetooth (2.40–2.485 GHz), WiFi (2.4 GHz), WLAN (2.40–2.49 GHz and 3.65–3.69 GHz), and WiMAX (3.40–3.79 GHz) applications. The antenna’s average gain was 1.50 dBi, with the maximum and minimum gains of 2.25 dBi and 0.88 dBi, respectively, in addition to omnidirectional radiation patterns at operating bands. View Full-Text
Keywords: compactness; double negative metamaterial; metamaterial inspired antenna; split ring resonator (SRR) compactness; double negative metamaterial; metamaterial inspired antenna; split ring resonator (SRR)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Hasan, M.M.; Rahman, M.; Faruque, M.R.I.; Islam, M.T.; Khandaker, M.U. Electrically Compact SRR-Loaded Metamaterial Inspired Quad Band Antenna for Bluetooth/WiFi/WLAN/WiMAX System. Electronics 2019, 8, 790.

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