A Quad Band Metamaterial Miniaturized Antenna for Wireless Applications with Gain Enhancement
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A Quad Band Metamaterial Miniaturized Antenna for Wireless Applications with Gain Enhancement Ritesh Kumar Saraswat1 · Mithilesh Kumar2
© Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract This paper presents a designing of dual-coated miniaturized metamaterial inspired quad band antenna for wireless standards with gain enhancement. Proposed design has compactness in size with electrical dimension of 0.239 × 0.351 × 0.0127 λ (30 × 44 × 1.6 mm3), at lower frequency of 2.39 GHz. The antenna consist a double printed slotted hexagonal shape radiating section with implementation of metamaterial rectangular split ring resonator. Antenna achieve quad bands for wireless standards WLAN (2.4/5.8 GHz), WiMAX (3.5 GHz), IEEE 802.11P (WAVE-5.9 GHz), ITU assigned X bands (7.25–7.75, 7.9– 8.4 GHz) and satellite communication systems operating bands (C-band: 7.4–8.9 GHz and X-band: 8–10 GHz for satellite TV). An acceptable gain, stable radiation characteristics and good impedance matching are observed at all the resonant frequencies of the proposed structure. By application of proposed frequency selective surface an average enhancement of gain is about 4–5 dB over the operating band. Antenna fabricated and tested represent good agreement between the simulated and measured results. Keywords Dual coated antenna · Frequency selective surface · Metamaterial split ring resonator · Quad band antenna · Wireless standards
1 Introduction 1.1 1.1 Motivation In the present scenario, the demand to design the low profile multiband miniaturized antennas has significantly increased. There are many advanced optimization techniques are available for antenna size miniaturization but shrinking the physical dimensions without significantly affecting the antenna performance is still a long standing need. The antenna
* Ritesh Kumar Saraswat [email protected] Mithilesh Kumar [email protected] 1
M.L.V. Government Textile and Engineering College, Bhilwara, Rajasthan, India
2
Rajasthan Technical University, Kota, Rajasthan, India
13
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R. K. Saraswat, M. Kumar
characteristics is hardly relaxed with the demand of compactness in antenna dimensions. In fact, it poses the design evolution of structure which is much more complex challenge. On other side, to adopt better opportunity regarding the flexibility for different wireless standards with single design, the miniaturized antenna have to be designed to work at different wireless applications. Recently, metamaterial inspired miniaturized multiband antenna have emerged with multiple wireless applications for modern handheld device/smart phone to cover the multifunctional operation such as Bluetooth, WiFi, IR wireless communication, broadcast radio, Microwave radio etc. within single antenna design. To fulfil the condition of multifunctional operations within single antenna design without compromising the antenna radiation characteristics is a complicated work. By implementation of metamaterial cell (split ring resonator) achieve the min
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