SAR for wearable antennas with AMC made using PDMS and textiles

Ramli, Muhammad Nazrin; Soh, Ping Jack; Rahim, Hasliza A.; Jamlos, Mohd Faizal; Giman, Fatin Nabilah; Hussin, Ezzaty Faridah Nor Mohd; Lago, Herwansyah; Lil, Emmanuel Van

doi:10.23919/ursigass.2017.8105353

Cited by 5 publications

(3 citation statements)

References 8 publications

(11 reference statements)

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“…The SAR 1g and SAR 10g distributions in the x-y, x-z, and y-z cross sections of the human head model are shown for 2. 4 Calculation of the SAR distributions on the human body parts due to a wearable textile antenna by using commercial software tools is the prime topic of antenna research [24][25][26][27][28][29][30][31][32][33][34] in recent years. A fair comparison of the obtained results is difficult because the SAR distributions and maximum SAR values depend on antenna types, substrates, input power, resonance frequencies, and distance between the antenna and the human body phantom.…”

Section: Effect Of Human-head Model On the Antenna Performancementioning

confidence: 99%

“…The SAR distribution in the human head due to EM energy radiated by an adjacent cellular phone having different types of antennas has been studied extensively using the finite-difference time-domain (FDTD) method in [13][14][15][16][17][18][19][20][21][22][23]. In [24][25][26][27][28][29][30][31][32][33][34], the SAR distribution on the part of human body phantom due to a wearable textile antenna has been studied using commercial software tools. In this work, the SAR calculations are performed on a realistic human-head model instead of a rough human body model using our in-house developed custom FDTD Matlab codes [35].…”

Section: Introductionmentioning

confidence: 99%

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FDTD-based SAR calculation of a wearable antenna for wireless body area network devices

Savci

Kaburcuk²

2022

Int. J. Microw. Wireless Technol.

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Wireless-connected wearable electronics are finding extensive usage for diagnostic and therapeutic purposes after the globally spread pandemic disease of COVID-19. Although they are undoubtedly helpful for keeping physical distance, their health effects are still under investigation from different aspects and are still a concern for the end-users. In this study, a custom M-shaped wearable antenna covering the wireless body area network and wireless local area network frequencies is designed, built, and measured. A beret cap made from a 2 mm thick textile is used as a substrate. The specific absorption rate (SAR) in a realistic human-head model due to electromagnetic energy produced by the antenna is evaluated using the finite-difference time-domain method. The SAR distributions for 1-g and 10-g tissues are calculated at 2.4 and 5.8 GHz. It is shown that the obtained maximum SAR values for 1-g and 10-g tissues at each frequency of interest were less than the limits determined by IEEE RF exposure guidelines and standards.

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Section: Effect Of Human-head Model On the Antenna Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

FDTD-based SAR calculation of a wearable antenna for wireless body area network devices

Savci

Kaburcuk²

2022

Int. J. Microw. Wireless Technol.

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“…The proposed antenna was designed with a small AMC plane in the shape of a square containing a small double square unit integrated with a bow tie for ISM applications. Meanwhile, [55] developed an Artificial Magnetic Conductor (AMC) plane by using different materials (textiles), and both antennas were able to radiate with SAR lower than 2 W/kg (European regulatory standards).…”

Section: Ebg Principlementioning

confidence: 99%

Key Factors in the Implementation of Wearable Antennas for WBNs and ISM Applications: A Review WBNs and ISM Applications: A Review

et al. 2022

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The increasing usage of wireless technology has prompted the development of a new generation antenna compatible with the latest devices, with on-body antennas (wearable antennas) being one of the revolutionary applications. This modern design is relevant in technologies that require close human body contact, such as telemedicine and identification systems, due to its superior performance compared to normal antennas. Some of its finer characteristics include flexibility, reflection coefficient, bandwidth, directivity, gain, radiation, specific absorption rate (SAR), and efficiency that are anticipated to be influenced by the coupling and absorption by the human body tissues. Furthermore, improvements like band-gap structure and artificial magnetic conductors (AMC) and (DGS) are included in the wearable antenna that offers a high degree of isolation from the human body and significantly reduces SAR. In this paper, the development of on-body antennas and how they are affected by the human body were reviewed. Additionally, parameters that affect the performance of this new antenna model, such as materials and common technologies, are included as an auxiliary study for researchers to determine the factors affecting the performance of the wearable antenna and the access to a highly efficient antenna.

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Performance Evaluation of Multiband Embroidered Fractal Antenna on Human Body

Gite¹,

Subhedar²

2022

SN COMPUT. SCI.

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SAR for wearable antennas with AMC made using PDMS and textiles

Cited by 5 publications

References 8 publications

FDTD-based SAR calculation of a wearable antenna for wireless body area network devices

FDTD-based SAR calculation of a wearable antenna for wireless body area network devices

Key Factors in the Implementation of Wearable Antennas for WBNs and ISM Applications: A Review WBNs and ISM Applications: A Review

Performance Evaluation of Multiband Embroidered Fractal Antenna on Human Body

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