Slot antenna single layer fed by step impedance strip line for Wi‐Fi and Wi‐Max applications

Abed, Amer T.; Singh, Mandeep Singh Jit

doi:10.1049/el.2016.1080

Cited by 24 publications

(17 citation statements)

References 4 publications

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“…18 are achieved the operation of L- and S-bands, which are LTE, GPS, GSM, WLAN, and WiMAX applications. Furthermore, refs 3,5 and refs 16,17 are applicable for only S-band (Bluetooth, WiFi, WiMAX and WLAN) operations. Therefore, after detail investigation of the existing antennas in the Table 5 the proposed metamaterial inspired antenna is compact in size, cover lower frequency bands, moderated gain and larger bandwidths and applicable for LTE, WiMAX applications.…”

Section: Resultsmentioning

confidence: 99%

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Dual Band Metamaterial Antenna For LTE/Bluetooth/WiMAX System

Hasan

Faruque

Islam

2018

Sci Rep

115

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A compact metamaterial inspired antenna operate at LTE, Bluetooth and WiMAX frequency band is introduced in this paper. For the lower band, the design utilizes an outer square metallic strip forcing the patch to radiate as an equivalent magnetic-current loop. For the upper band, another magnetic current loop is created by adding metamaterial structure near the feed line on the patch. The metamaterial inspired antenna dimension of 42 × 32 mm2 compatible to wireless devices. Finite integration technique based CST Microwave Studio simulator has been used to design and numerical investigation as well as lumped circuit model of the metamaterial antenna is explained with proper mathematical derivation. The achieved measured dual band operation of the conventional antenna are sequentially, 0.561~0.578 GHz, 2.346~2.906 GHz, and 2.91~3.49 GHz, whereas the metamaterial inspired antenna shows dual-band operation from 0.60~0.64 GHz, 2.67~3.40 GHz and 3.61~3.67 GHz, respectively. Therefore, the metamaterial antenna is applicable for LTE and WiMAX applications. Besides, the measured metamaterial antenna gains of 0.15~3.81 dBi and 3.47~3.75 dBi, respectively for the frequency band of 2.67~3.40 GHz and 3.61~3.67 GHz.

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Section: Resultsmentioning

confidence: 99%

“…The total dimension of the antenna was 70 × 50 mm 2 and the asymmetrical slot is etched in the ground plate taking the form of the character ‘Q’. The resonance frequency bands from 2.4~2.56 GHz and 3.43~3.78 GHz was utilised for WiFi and WiMAX applications 16 . A compact MIMO antenna (Nandi et al .…”

Section: Introductionmentioning

confidence: 99%

Dual Band Metamaterial Antenna For LTE/Bluetooth/WiMAX System

Hasan

Faruque

Islam

2018

Sci Rep

115

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“…(6) where the free-space permeability is µ 0 = 4π£10 −7 H/m and the free-space permittivity is ε 0 = 8.85£10…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, a material with simultaneous negative permeability and permittivity (ε < 0 and µ < 0) can be characterised as a double negative metamaterial. Since the last century, various structural meta-atom materials have been utilized for several applications, such as resonators, the electromagnetic absorber [3], electromagnetic band gap, filters [4], SAR reduction, invisible clocking operation [5], antenna design [6], biomedical applications, super-lens, waveguides, etc. Nowadays, because of a large bandwidth, high transmission capacity, and short-range features, many different alphabetical meta-atom structures are used for X-band applications.…”

Section: Introductionmentioning

confidence: 99%

Parametric studies on split S-shaped composite meta atom for X-band communication

Hasan

Faruque

Islam

2017

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. The aim of this paper is to describe a split S-shaped composite meta atom which shows double negative characteristics at resonance frequency. The proposed meta-atom structure exhibits an almost 3.70 GHz bandwidth when the operating frequency from 8 to 14 GHz (X-band). In this study, the ring width, split width, size of substrate material, and the substrate material itself are varying to investigate their effect on the resonance frequencies. Metal strips of the outer resonator are the splits and the inner ring resonator is designed in a way that it forms a split S-shaped structure on the epoxy resin fibre (FR-4) substrate material. The CST Microwave Studio electromagnetic simulator software was used for the design and simulation purposes, and an Agilent N5227A vector network analyser was used for practical measurements.Key words: Capacitance, DNG, inductance, meta atom.Parametric studies on split S-shaped composite meta atom for X-band communication Mallik et al. in 2013 [7]. Moreover, a "Z-shaped" meta atom working only in a single band with a single negative property was introduced by Dhouibi et al. in 2012 [8]. A "V-shaped" metamaterial structure, displaying a 450 MHz bandwidth from 8.05 to 8.50 GHz, was presented by Ekmekci et al. in 2007 [9]. Later, an "S-shaped", 15£15 mm chiral metamaterial for X and Ku bands, yet with the effective medium ratio less than 4, was designed by Zhimou et al. in 2015 [10]. Furthermore, a "Π-shaped" metamaterial applicable for X-band, whose dimensions were 10£10 mm and the effective medium ratio was less than 4, was exhibited by Islam et al. in 2015 [5]. However, a "ring-shaped" meta atom for wearable microwave meta-skin and cloaking effects with a range from 8.0 to 10 GHz was suggested by Yang et al. in 2016 [11]. A modified double negative "Z-shaped" metamaterial was developed for wideband operations, but the bandwidth was 2.17 GHz (from 7.87 to 10.04 GHz). This metamaterial structure, compact in size and applicable for C-and X-band applications, was proposed by Hasan et al. in 2016 [12].In this paper, the designed meta-atom structure is comprised of a split S-shaped ring resonator with an outer square-shaped ring resonator made out of copper. The proposed unit cell exhibits resonances at X-band with negative refractive index from 8.0 to 11.70 GHz and 11.78 to 14.0 GHz, i.e. the bandwidths cover 3.70 GHz and 2.22 GHz, respectively. The proposed meta-atom unit cell shows a larger bandwidth than the reference prototypes [8][9][10][11][12] and exhibits double negative characteristics of the resonance frequency. Besides, here a parametric study has been performed to demonstrate the effects of inductance and capacitance on resonance frequencies. By increasing the length or width of the metal strip, the inductive effect is raised and the LC resonance frequency is decreased. Consequently, the splits are creating capacitance, but with an increase of split width sequentially, the capacitive effect is reducd and the LC

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“…Use of synthetic magnetic conductors resulted with lowered gain at desired resonant frequencies [7]. Hence in simple words patch size reduction has been a very common interesting topic among researchers [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%