Correlation of specific absorption rates in the human head due to multiple independent sources

Whittow, William G.; Panagamuwa, Chinthana; Derat, Benoît; Morrow, Ivor L.

doi:10.1109/lapc.2009.5352433

Cited by 4 publications

(4 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The combined SAR 1g due to the two sources is coincide with the following relation that given in [9]: Max (SAR 1g,f1 , SAR 1g,f2 ) ≤ SAR 1g, total ≤ (SAR 1g,f1 +SAR 1g,f2 )…”

Section: Numerical Results and Discussionmentioning

confidence: 65%

“…The mechanisms of near-field interaction between dipoles and mobile phone models and homogeneous body models are examined in [7,8]. The scenario of anatomically realistic head excited by various sources including: plane waves, vertically and horizontally orientated dipoles positioned 8cm in front and by the side of the head over the frequency range 0.5 to 4GHz is presented in [9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Computation of the Combined Specific Absorption Rates Induced in Human Head due to Multiple Independent Sources

Yahya¹,

Khalil²

2015

ijea

View full text Add to dashboard Cite

The combination of the specific absorption rates induced in human head due to multiple independent electromagnetic field sources is computed numerically. The scenario of this paper considers a human making a mobile call by a GSM-900 handset of internal antenna while working on a Laptop computer with Wi-Fi-enabled dipole-antenna broadcasting at 2.4 GHz. The mobile phone in hand and in close proximity to head at check-position is adopted, whereas, the Laptop computer having different Wi-Fi antenna orientations and positioned at different places, with respect to head, are examined. The results show how the specific absorption rates in head are combined when exposed to both sources, simultaneously. The numerical computation is achieved using a high resolution FDTD gridding; solved by a 3-D full-wave electromagnetic simulation software on a high performance workstation machine with Tesla GPU accelerator.

show abstract

“…The combined SAR 1g due to the two sources is coincide with the following relation that given in [9]: Max (SAR 1g,f1 , SAR 1g,f2 ) ≤ SAR 1g, total ≤ (SAR 1g,f1 +SAR 1g,f2 )…”

Section: Numerical Results and Discussionmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Numerical Computation of the Combined Specific Absorption Rates Induced in Human Head due to Multiple Independent Sources

Yahya¹,

Khalil²

2015

ijea

View full text Add to dashboard Cite

show abstract

“…a shape of cube with weight of 1 g by American regulator and 10 g by European regulator as the basic restriction on localised near-field exposure. The SAR induced in head due to the total electric fields of multiple independent sources was examined by Whittow et al [37]. This paper showed that in the case of two sources the whole-head averaged SAR will always be SAR f1 + SAR f2 , and therefore the total heating in the head will increase with multiple sources.…”

Section: Sar Due To Multiple Sourcesmentioning

confidence: 99%

“…Since the SAR 1 g distribution in the head or torso tissues vary with the frequency and the peak points are likely to occur in different positions at different frequencies, (3) may not be applicable for evaluating total SAR 1 g from the three independent antennas. On the basis of [37], the lowest theoretical SAR 1 g from multiple sources is the maximum value of (SAR 1 g,f1 or SAR 1 g,f2 or SAR 1 g,f3 ). In practice, the combined SAR will always be greater than this, as the other frequencies will not produce zero SAR values at the location of highest SAR.…”

Section: Sar Due To Multiple Sourcesmentioning

confidence: 99%

Numerical dosimetry of CDMA/GSM, DCS/PCS and 3G signal jammers

Yahya

Whittow

Khaleel

2016

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

In this study, numerical dosimetry of a code division multiple access (CDMA)/global system of mobile, digital cellular service (DCS)/personal communications service (PCS) and third generation signal jammer working with three antennas is presented. Three anatomical full human body models of different ages and gender exposed to the signal jammer electromagnetic (EM) waves at 900, 1800 and 2100 MHz, simultaneously, are numerically modelled using a high‐resolution finite‐difference time‐domain gridding; solved by a full‐wave three‐dimensional EM simulation software on a high‐performance workstation machine. The average specific absorption rate (SAR) in the whole human body and the peak spatial SAR averaged over 1 g induced in the head and torso biological tissues were evaluated at different distances from the signal jammer above a ground consisting of concrete and soil layers. The maximum radiated power by the signal jammer at different distances against the human body was calculated for the safe exposure in compliance with the Institute of Electrical and Electronics Engineers (IEEE)/American National Standards Institute (ANSI)/Federal Communications Commission (FCC) standard limits.

show abstract

Analysis of Exposure to Electromagnetic Fields Due to Multiple Sources in a Classroom Environment

Soares,

Bulla,

Fernandez-Rodriguez

et al. 2023

2023 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)

View full text Add to dashboard Cite

Correlation of specific absorption rates in the human head due to multiple independent sources

Cited by 4 publications

References 8 publications

Numerical Computation of the Combined Specific Absorption Rates Induced in Human Head due to Multiple Independent Sources

Numerical Computation of the Combined Specific Absorption Rates Induced in Human Head due to Multiple Independent Sources

Numerical dosimetry of CDMA/GSM, DCS/PCS and 3G signal jammers

Analysis of Exposure to Electromagnetic Fields Due to Multiple Sources in a Classroom Environment

Contact Info

Product

Resources

About