SAR analysis using SFDTD and hybrid FDTD

Ali, Md. Faruk; Ray, Sudhabindu

doi:10.1109/codec.2012.6509293

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…2(a)-(c). In SFDTD, simulation is performed in the three segments separately and detail of which is described in available literature [17].…”

Section: Sfdtd Methodsmentioning

confidence: 99%

Estimation of Whole-Body Average Sar in Human Body Exposed to a Base Station Antenna

Ali¹,

Ray²

2014

PIER M

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Abstract-Electromagnetic wave absorption inside a human body is investigated. The human body has been modeled using 3D voxel based dataset considering different electrical parameters. At GSM 900 band, Specific Absorption Rate (SAR) induced inside the human body model exposed to a radiating base station antenna (BSA) has been calculated for multiple number of carrier frequencies and input power of 20 W/carrier. Distance (R) of human body from BSA is varied in the range of 0.5 m to 5.0 m. Values of whole-body average SAR obtained by hybrid FDTD method closely match with that obtained by SFDTD method. For number of carrier frequency equal to five and R = 0.5 m, maximum value of whole-body average SAR obtained by both hybrid FDTD and SFDTD method is found to be 0.69 W/kg which decreases either with increase of R or decrease of number of carrier frequencies. Safety distance for general public is found to be 1.5 m for number of carrier frequencies equal to five. Summary of performance comparison shows that hybrid FDTD method is faster and requires less memory than SFDTD method.

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“…2(a)-(c). In SFDTD, simulation is performed in the three segments separately and detail of which is described in available literature [17].…”

Section: Sfdtd Methodsmentioning

confidence: 99%

Estimation of Whole-Body Average Sar in Human Body Exposed to a Base Station Antenna

Ali¹,

Ray²

2014

PIER M

Self Cite

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“…The number of cell towers is increasing rapidly, and electromagnetic (EM) waves emitted from the Base Station Antennas (BSAs) may have adverse effects on human beings or on other living animals [1][2][3][4][5]. It has also been reported that continuous exposure to microwave radiation from cell phone towers causes serious health problems over the years [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Study of Em Wave Absorption and Shielding Characteristics for a Bonsai Tree for GSM-900 Band

Ali¹,

Ray²

2014

PIER C

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Abstract-Electromagnetic (EM) wave absorption characteristics for a Bonsai tree are investigated at GSM-900 band. Finite Difference in Time Domain (FDTD) method is hybridized with Friis transmission equation to carry out all the required EM simulations. The tree has been modelled using CT scan based 3D dataset considering different electrical parameters. Maximum local electric (E) field, magnetic (H) field, Specific Absorption Rate (SAR) and Shielding Effectiveness (SE) have been calculated for the tree placing at distance of 5 m away from a radiating Base Station Antenna (BSA) with 20 W input power. The maximum local E field, H field, 1-g SAR and SE obtained by the simulation are found to be 70.1 V/m, 0.09 A/m, 0.135 W/kg and 13.18 dB, respectively. Plants are found to be good natural electromagnetic radiation shield.

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SAR analysis using SFDTD and hybrid FDTD

Cited by 2 publications

References 10 publications

Estimation of Whole-Body Average Sar in Human Body Exposed to a Base Station Antenna

Estimation of Whole-Body Average Sar in Human Body Exposed to a Base Station Antenna

Study of Em Wave Absorption and Shielding Characteristics for a Bonsai Tree for GSM-900 Band

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