Embroidered Fully Textile Wearable Antenna for Medical Monitoring Applications

Osman, Mai A. R.; Rahim, M. K. A.; Samsuri, N. A.; Salim, Hashim Ali Mohamed; Ali, Mohammad

doi:10.2528/pier11041208

Cited by 109 publications

(62 citation statements)

References 22 publications

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“…The close proximity of human body with a high dielectric constant and loss are known to have a detrimental effect on antenna input impedance and efficiency. Other research areas on wearable technology concentrate on wireless body-area networks (BAN) [3,4], wearable systems carried in clothing [5], and realization of fabric antennas [6] or stretchable interconnections [7,8]. Research on medical applications concentrate on the biomedical data with less emphasis on the bodyworn wireless link [9].…”

Section: Introductionmentioning

confidence: 99%

Human Body Effects on Inkjet-Printed Flexible Rf Interconnections

Alam¹,

Sillanpää²,

Makinen³

2013

PIER C

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Abstract-The effect of human body on inkjet-printed flexible singlelayer transmission lines in immediate proximity of body is investigated by simulations and measurements up to 9 GHz. A multiline extraction method is used to obtain effective material parameters allowing detailed analysis of body effects. Already at 1 mm distance from the body, the line properties converge toward the free-space values. However, at smaller distances and in direct contact with the body, often required in biosensor applications, there is a significant change in characteristic impedance and increase in losses. The results of the paper can be used to evaluate the body effects at different frequencies and at different small distances from the body.

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Section: Introductionmentioning

confidence: 99%

Human Body Effects on Inkjet-Printed Flexible Rf Interconnections

Alam¹,

Sillanpää²,

Makinen³

2013

PIER C

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“…Although wearable antennas suffer performance distortion when applied to human body, this field is still widely explored by researchers. One of the most researched wearable antenna types is the wearable fabric based antenna [13][14][15][16][17][18], initially designed in the form of a helmet [19] as well as a vest [20,21], and since then, it is always meant to be a part of clothing. In general, fabrics have low dielectric constant, hence this property helps in getting a wide bandwidth from the antenna.…”

Section: Introductionmentioning

confidence: 99%

Textile Artificial Magnetic Conductor Waveguide Jacket for on-Body Transmission Enhancement

Kamardin¹,

Rahim²,

Samsuri³

et al. 2013

PIER B

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Abstract-Diamond dipole antennas with textile Artificial Magnetic Conductor (AMC) sheet-like waveguide were designed to investigate the possibility of improving transmission between antennas. Fleece fabric is used as the substrate of the textile AMC while SHIELDIT fabric is used as the conductive patches and ground plane. The AMC surface is designed to resonate at 2.45 GHz with the goal to enhance the transmission between antennas. A small textile AMC waveguide sheet as well as an AMC waveguide jacket were fabricated. The S-parameters performance of the two antennas with textile AMC sheet was investigated in a free space environment and near to human body setting. The effect of different antennas' orientations was also considered. Measurements were conducted thoroughly to validate the simulated findings. Compared to free space environment, S 21 transmission between two dipoles is improved up to maximum −10 dB when having textile AMC waveguide sheet beneath them. For both off-body and on-body placements, significant transmission enhancement has been observed with the introduction of the AMC sheet-like waveguide. Directive radiation patterns with high gain have also been achieved with the proposed AMC waveguide jacket.

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“…Also, implementing medical devices using wireless technology requires information need to be effectively transmitted from the source device to the targeting device in different scenarios of medical environment [7][8][9][10][11]. Hence, in order to optimize the design and performance of such a wireless system, a proper channel propagation modeling is needed.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Simulation Technique for Characterizing Wireless Channel in Medical Environments

Lee¹,

Bui²

2013

PIER

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Abstract-The purpose of this paper is to investigate the use of simulation technology for the analysis of wireless propagation channel in medical environments. In this paper, the channel modeling has been carried out by using an effective simulation platform, which combines full-wave Method of Moments and adaptive ray tracing technique. Base on this, the channel characteristics involving both large-scale and small-scale parameters of a wireless network deployed within a hospital environment can be estimated. Also, it is straightforward to predict the levels of electromagnetic field interference produced from the network infrastructure. The simulated results of four scenarios of medical environment, such as the patient room, the operating room, a particular level of the hospital, and the cardiac stress test room, with different wireless technologies used show the advantage and capability of the presented simulation approach.

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Embroidered Fully Textile Wearable Antenna for Medical Monitoring Applications

Cited by 109 publications

References 22 publications

Human Body Effects on Inkjet-Printed Flexible Rf Interconnections

Human Body Effects on Inkjet-Printed Flexible Rf Interconnections

Textile Artificial Magnetic Conductor Waveguide Jacket for on-Body Transmission Enhancement

Hybrid Simulation Technique for Characterizing Wireless Channel in Medical Environments

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