Effects of human body and antenna orientation on dipole textile antenna performance and SAR

Elias, N. A.; Samsuri, N. A.; Rahim, M. K. A.; Othman, N.; Jalil, M. E.

doi:10.1109/apace.2012.6457647

Cited by 20 publications

(8 citation statements)

References 8 publications

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“…The SAR value for the proposed structure is on an average 0.01 W/kg, which is well below the standard set (federal communications commission – 1.6 W/kg). For wearable communication, it is required that the antenna should induce a very minimum SAR [30, 31], the proposed antenna structure would be well suited for it. The fact that the antenna is made exclusively from cloth fabric makes it a suitable choice for on-body communication.…”

Section: Resultsmentioning

confidence: 99%

Completely integrated multilayered weave electro-textile antenna for wearable applications

Sundarsingh

Kanagasabai

Ramalingam

2017

Int. J. Microw. Wireless Technol.

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This paper proposes a unique, first of its kind fabrication technique for the making of textile antennas. A novel method that provides scope for automation in textile antenna production is presented here. A completely integrated textile antenna fabrication method that eliminates the tasks of positioning and fastening of the various components of a patch antenna is discussed. The technique employs multilayer weaving for the production of a wearable antenna on a cotton substrate. Silver yarn is used for the conductive regions of the textile antenna. Two layers of woven cotton serve to isolate the radiating patch from the ground plane of the antenna. The designed antenna was chosen to operate at the frequency of 2.45 GHz for Wireless Local Area Network. The built prototype resonated at 2.43 GHz with a |S11|of −18.62 dB. The integrated textile antenna exhibited a gain of 1.06 dBi at 2.43 GHz.

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Section: Resultsmentioning

confidence: 99%

Completely integrated multilayered weave electro-textile antenna for wearable applications

Sundarsingh

Kanagasabai

Ramalingam

2017

Int. J. Microw. Wireless Technol.

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“…Besides, the resonant frequency, input impedance matching and bandwidth of the antenna fluctuated remarkably when the antenna is bent [4]. Furthermore, even in the normal flat condition, degradation of the wearable antennas performance is expected since the antenna is mounted in close proximity to the human body [5,6]. But there is another major concern which is the potential adverse health effect from the backward radiation that goes towards the human body [7].…”

Section: Introductionmentioning

confidence: 97%

Analytical Study of Energy Absorption in Human Body Due to Bendable Behaviour of Textile Antenna

Elias

Samsuri

Rahim

2015

Lecture Notes in Electrical Engineering

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Absorption of electromagnetic (EM) radiation by the human body has received tremendous attention due to rapid growth in Wireless Body Area Network (WBAN) applications. Specific Absorption Rate (SAR) is usually measured with the antenna in flat condition. However the emergences of flexible wearable textile antennas make it compulsory to analyse the SAR when the antenna is not in its normal flat condition. The absorption of EM radiation as well as the SAR distribution are analysed as a function of the antenna curvature sizes and different on-body locations and distances. The averaged SAR values demonstrate an increase of up to 92.3 % when the curved textile antenna is bent and placed 1 mm away from the body.

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“…61 GHz Yagi-Uda antennas is presented for on-body communication [17]. Microstrip, planar and vertical monopole antennas were presented and their suitability as wearable antennas [18][19][20][21][22][23][24]. Alternatively, the electromagnetic bandgap structure (EBG) is included in the design of the antenna, which can be used to provide a high level of isolation from the human body 371 and to reduce SAR in tissue.…”

Section: Introductionmentioning

confidence: 99%

Design a compact square ring patch antenna with AMC for SAR reduction in WBAN applications

Mumin¹,

Alias²,

Abdullah³

et al. 2020

Bulletin EEI

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In this paper presents a compact square ring patch antenna with miniaturized AMC structure at 5.8 GHz for WBAN applications. To minimize detuning, keeping its radiation efficiency high and acceptable gain while keeping the SAR levels low for safety is a challenging task. One of the critical issues in WBAN antenna design is the size of the antenna for portable devices, because the size affects the gain and bandwidth. The AMC configuration decreases the back radiation and the effect frequency detuning results from the high loss in the human body. Furthermore, the AMC also increases the front-to-back ratio (FBR) of 15.3 dB. The proposed antenna has dimensions of 15.27×15.27×2.2 mm3 and provides a 404 MHz impedance bandwidth, with a gain improvement of 8.69 dBi and a 93.7% reduction of the initial SAR value. For this reason, the antenna is suitable for WBAN application in various fields, particularly in medical technology.

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Effects of human body and antenna orientation on dipole textile antenna performance and SAR

Cited by 20 publications

References 8 publications

Completely integrated multilayered weave electro-textile antenna for wearable applications

Completely integrated multilayered weave electro-textile antenna for wearable applications

Analytical Study of Energy Absorption in Human Body Due to Bendable Behaviour of Textile Antenna

Design a compact square ring patch antenna with AMC for SAR reduction in WBAN applications

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