Electromagnetic absorption in the human head and neck for mobile telephones at 835 and 1900 MHz

Gandhi, O.P.; Lazzi, Gianluca; Furse, Cynthia

doi:10.1109/22.539947

Cited by 440 publications

(250 citation statements)

References 9 publications

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“…In recent years, work has been presented regarding mobile communications equipment (MCE) positioned near the ear [3][4][5][6]. The head has also been irradiated from in front of the eye using realistic mobile phone models [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

The SAR effects of popular jewellery on the human head

Whittow¹,

Panagamuwa²,

Edwards³

et al. 2007

2nd European Conference on Antennas and Propagation (EuCAP 2007)

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This paper investigates the effects of metallic jewellery on the SAR in the human head. A CW dipole is placed in front of the head to represent a mobile enabled personal data assistant. The FDTD method has been used to simulate an eyebrow ring near a homogeneous SAM phantom at 1.8GHz. Measurements were made on the Loughborough SAM head with the DASY4 measurement system. Simulations were also made with eyebrow rings on the surface of the skin and pierced through the eyebrow of a heterogeneous anatomically realistic human head. Common sizes of eyebrow ring and eyebrow stud have been considered over the frequency range 0.6 to 4.6GHz. Jewellery which was small compared to a wavelength had little effect on the SAR in the head.

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Section: Introductionmentioning

confidence: 99%

The SAR effects of popular jewellery on the human head

Whittow¹,

Panagamuwa²,

Edwards³

et al. 2007

2nd European Conference on Antennas and Propagation (EuCAP 2007)

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“…A rigorous Finite-Difference Time-Domain (FDTD) model is used. In recent years some work has been written up regarding mobile phones positioned near the ear [1][2][3][4]. The head has also been irradiated from in front of the eye using realistic mobile phone models [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Implications for SAR when using a symmetric phantom exposed to RF radiation using the FDTD method

Whittow

Edwards

2004

Technical Seminar on Antenna Measurements and SAR (AMS 2004)

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Abstract-this paper investigates the implications of SAR when using a symmetric head compared to a whole head. The excitation is a vertically polarised plane wave traveling from the front of the face to the back of the head. The frequency range considered is 1.5 to 3.0GHz. In general actual human heads are not symmetric. For example one eye may be slightly higher than the other and a nose maybe somewhat bent. Recently researchers also have evidence of brain torque (i.e. rightward frontal and leftward occipital asymmetry) in humans. In this FDTD model the head is modeled as two identical mirrored halves. By this method the field values need not be calculated twice thereby reducing computation time and memory requirements. Our results show whole head versus mirrored head comparisons for the maximum 1 and 10g SAR in the head and gives particular attention to the SAR in the eyes.

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“…In previous works [1 -4] it has been demonstrated that metallic spectacles can alter the specific absorption rate in the head and in particularly in the eyes. In recent years some work has been written up regarding mobile phones positioned near the ear [5][6][7][8]. Illumination has been considered from in front of the eye using realistic mobile phone models [7][8][9].…”

Section: Introductionmentioning

confidence: 99%