Impact of SAR on human head modeling in Elevators using IFA

Priyadarshini, S. Jemima; Mary, T. Anita Jones; Sugumar, D.; Ravichandran, C.S.

doi:10.1109/apace.2010.5720085

Cited by 4 publications

(3 citation statements)

References 4 publications

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“…Many studies on the SAR value of a single antenna for mobile handsets have been carried out in different frequency bands [13][14][15][16][17][18][19][20][21][22][23][24][25][26]. In [27], an investigation of the SAR caused by two-element antenna array at 1.9 GHz has been reported and it was shown that the SAR value reaches a maximum when the phase difference is near 180 degrees and a minimum when the phase difference is approximately 0 degree.…”

Section: Introductionmentioning

confidence: 99%

An Interaction Study Between Pifas Handset Antenna and a Human Hand-Head in Personal Communications

Montaser¹,

Mahmoud²,

Elmikati³

2012

PIER B

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Abstract-In this paper, the interaction of a planar inverted-F antennas array, mounted on a mobile handset, with a human hand-head phantom is investigated in the 1.9 GHz band. The hybrid approach involving the particle swarm optimization (PSO) and Nelder-Mead (NM) algorithm is considered to optimize the complex excitations of the adaptive array elements in a mutual coupling environment for different beamforming synthesis. Firstly, the effect of the human handhead on the handset radiation characteristics is studied. Then, the spatial-peak specific absorption rate (SAR) values of 2-and 4-element PIFA arrays for mobile handset in the vicinity of a human handhead are evaluated numerically for different scenarios. The antenna is analyzed completely using finite difference time domain (FDTD) method while the interaction is performed using the CST Microwave Studio software.

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Section: Introductionmentioning

confidence: 99%

An Interaction Study Between Pifas Handset Antenna and a Human Hand-Head in Personal Communications

Montaser¹,

Mahmoud²,

Elmikati³

2012

PIER B

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“…EM exposure within metallic environments is, also, a topic of great interest because of the multiple wave reflections occurring inside or near them. The averaged SAR values can be increased inside metallic enclosures compared to free space [33][34][35] and at the presence of metallic walls [36,37]. Whole-body exposure assessment might be equally significant with the peak averaged SAR values in the head at fully and partially enclosed metallic elevator cabins [38,39].…”

Section: Introductionmentioning

confidence: 99%

SAR and thermal distribution of pregnant woman and child inside elevator cabin

Karatsi

Bakogianni

Koulouridis

2022

Int. J. Microw. Wireless Technol.

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A detailed dosimetry study of electromagnetic absorption and temperature rise under real scenarios is delivered when a mobile phone is used inside an elevator cabin. Numerically accurate human models of a 7th month pregnant woman and a 5-year-old female child are utilized as the exposed subjects. The female child acts as the phone user. The mobile phone is modeled in three talk positions (parallel, tilt, and cheek) operating at 1000 MHz and 1800 MHz. From the obtained numerical results for the specific absorption rate (SAR) and temperature rise induced by the mobile radiofrequency (RF) radiation, it is found that the child's RF exposure is significantly affected by the phone position and less affected by the relevant position of the human models. The exact opposite case applies for the pregnant woman model and its fetus. Almost all numerical investigations are carried out inside a metallic elevator cabin.

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“…Modeling only human head, some additional papers have studied the effects from metallic walls and full metallic enclosures of small size (much smaller than the size of a proper elevator cabin). They have shown that SAR values are increased in the full enclosures as compared to the free space [5,6]. Also when antenna is tilted 45 degrees from its initial position the SAR 10g is increased [7].…”

Section: Introductionmentioning

confidence: 99%

E-Field Distribution and Dosimetry of an Anatomical Human Body model, Inside Elevator cabin: Comparison between five different structures of elevator cabins

Karatsi¹,

Koulouridis²

2014

Proceedings of the 4th International Conference on Wireless Mobile Communication and Healthcare - "Transforming Healthcare Thro

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We study the distribution of electromagnetic field when a mobile phone is used inside an elevator cabin. To this end numerically accurate models of mobile phone and human are utilized. Two different positions in the elevator are examined and the mobile phone is placed at three different talk positions, vertical, tilt and cheek. Also five different cabin types are employed. As found, position of the user or placement of phone give drastically different maximum electromagnetic field values.

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Impact of SAR on human head modeling in Elevators using IFA

Cited by 4 publications

References 4 publications

An Interaction Study Between Pifas Handset Antenna and a Human Hand-Head in Personal Communications

An Interaction Study Between Pifas Handset Antenna and a Human Hand-Head in Personal Communications

SAR and thermal distribution of pregnant woman and child inside elevator cabin

E-Field Distribution and Dosimetry of an Anatomical Human Body model, Inside Elevator cabin: Comparison between five different structures of elevator cabins

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