A wideband printed monopole antenna for 2.4‐GHz WLAN applications

Suma, M.N.; Bybi, P. C.; Mohanan, P.

doi:10.1002/mop.21503

Cited by 54 publications

(24 citation statements)

References 3 publications

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“…For the narrowband subject-specific on-body radio propagation channel study, a pair of printed monopole antennas (working at 2.45 GHz) were used [31], as shown in Figure 2. The radiating element of the printed monopole antenna was designed on the FR4 board with ε r = 4.6 and a thickness of 1.6 mm.…”

Section: Measurement Settingsmentioning

confidence: 99%

“…During the measurements, the subject was standing still, and for each receiver location and measurement scenario, 10 sweeps were considered, as was performed for the narrowband case. The UWB subject-specific on-body radio channel measurements were also performed in the Body-Centric Wireless Sensor Laboratory, Queen Mary University of London [31]. For both narrowband and UWB subject-specific on-body radio channel experiments, the environment of the sensor laboratory was kept constant.…”

Section: Measurement Settingsmentioning

confidence: 99%

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Experimental Investigation of Subject-Specific On-Body Radio Propagation Channels for Body-Centric Wireless Communications

et al. 2014

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Abstract:In this paper, subject-specific narrowband (2.45 GHz) and ultra-wideband (3-10.6 GHz) on-body radio propagation studies in wireless body area networks (WBANs) were performed by characterizing the path loss for eight different human subjects of different shapes and sizes. The body shapes and sizes of the test subjects used in this study are characterised as thin, medium build, fatty, shorter, average height and taller. Experimental investigation was made in an indoor environment using a pair of printed monopoles (for the narrowband case) and a pair of tapered slot antennas (for the ultra-wideband (UWB) case). Results demonstrated that, due to the different sizes, heights and shapes of the test subjects, the path loss exponent value varies up to maximum of 0.85 for the narrowband on-body case, whereas a maximum variation of the path loss exponent value of 1.15 is noticed for the UWB case. In addition, the subject-specific behaviour of the on-body radio propagation channels was compared between narrowband and UWB systems, and it was deduced that the on-body radio channels are subject-specific for both narrowband and UWB system cases, when the same antennas (same characteristics) are used. The effect of the human body shape and size variations on the eight different on-body radio channels is also studied for both the narrowband and UWB cases.

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Section: Measurement Settingsmentioning

confidence: 99%

Section: Measurement Settingsmentioning

confidence: 99%

Experimental Investigation of Subject-Specific On-Body Radio Propagation Channels for Body-Centric Wireless Communications

et al. 2014

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“…Out of the five antennas, the Loop has the smallest ground plane size; in comparison, the Wire Monopole has the highest volume. [8], (c) Printed Monopole [13], (d) Inverted L antenna [14] and (e) Circular Loop [15]. …”

Section: Measurement Settingsmentioning

confidence: 99%

Investigation of performance parameters of different wearable narrowband antennas in close proximity to the human body

Khan

Shanaz

Abdullah-Al-Mamun

2012

2012 15th International Conference on Computer and Information Technology (ICCIT)

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This paper investigates and compares the on-body performance parameters of five different narrowband antennas at 2.45 GHz. Parametrical analysis addressing the human body effects on the performance parameters of different types of narrowband antennas have been presented. The study was performed by combination of numerical simulation and experimental investigation. The antennas used in this study are microstrip fed patch, wire monopole, printed monopole, inverted L and circular loop.

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“…Thus far, several types of designs have been proposed and investigated for their suitability as wearable antennas, such as vertical monopoles, planar microstrip monopoles [2], planar inverted-F antennas [3], microstrip patch antennas [4], and cavity-backed or planar waveguide fed slot antennas [5,6]. These antennas, however, possess either very narrow bandwidth, large footprint, and/or high profile, making them of only limited use in wearable systems.…”

Section: Introductionmentioning

confidence: 99%

Robust low-profile metasurface-enabled wearable antennas for off-body communications

Jiang

Werner

2014

The 8th European Conference on Antennas and Propagation (EuCAP 2014)

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a) (b) Fig. 1. (a) Top and bottom views of the top monopole layer. (b) Top and bottom views of the finite sized metasurface layer with a metallic backing. The optimized dimensions are Gx = 62mm, Gy = 42mm, Ax = 39mm, Ay = 30mm, d1 = 1.5mm, Mw = 12mm, Ml = 21.8mm, tp = 1.15mm, msw = 4mm, msl = 11.3mm, gndl = 10mm, L1 = 16.86mm, L2 = 5.1mm, W1 = 9.75mm, W2 = 16mm, g1 = 2.15mm, and g2 = 2.49mm. The substrate material is Rogers RO3003 ( r=3, tan=0.0013).Abstract-This paper presents a low-profile metasurfaceenabled wearable antenna operating in the newly released medical wireless body-are network (MBAN) band from 2.36 to 2.40 GHz for off-body communications. The performance of the antenna was made possible by the introduction of a properly designed anisotropic metasurface which consists of only a 2 by 2 array of I-shaped resonating elements. Together with the finitesized metallic ground plane on the back of the metasurface, it provides a +90° reflection phase band to achieve the desired impedance matching for the planar monopole feed above the metasurface. The integrated antenna was fabricated and characterized, showing a strong correspondence between simulated and measured results. The resulting antenna has a remarkably low profile of only one-fiftieth of the operating wavelength, all while achieving a 5.5% -10 dB impedance bandwidth from 2.30 to 2.43 GHz, a gain of around 6.2 dBi, and a font-to-back ratio higher than 23 dB, thus making it a promising candidate for incorporation into various wearable systems.Index Terms-anisotropic metasurface, medical body-area network, wearable antennas.

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A wideband printed monopole antenna for 2.4‐GHz WLAN applications

Cited by 54 publications

References 3 publications

Experimental Investigation of Subject-Specific On-Body Radio Propagation Channels for Body-Centric Wireless Communications

Experimental Investigation of Subject-Specific On-Body Radio Propagation Channels for Body-Centric Wireless Communications

Investigation of performance parameters of different wearable narrowband antennas in close proximity to the human body

Robust low-profile metasurface-enabled wearable antennas for off-body communications

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