EM radiation from Wi-LAN base station and its&amp;#x2019; effects in human body

Shabani, Hikma; Islam, Md. Rafiqul; Alam, Ahm Zahirul; El-Raouf, Hany E. Abd

doi:10.1109/icece.2008.4769178

Cited by 9 publications

(6 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dose rate at which RF electromagnetic energy imparted into the human head and other body parts is measured in terms of SAR. It is defined as the rate at which a person absorbs EM energy per unit mass [8]. SAR is used to quantify biological adverse effects and formulating safety guidelines or standards on exposure to RF fields [9]- [10].…”

Section: Introductionmentioning

confidence: 99%

SAR Analysis for handheld mobile phone using DICOM based voxel model

Ali¹,

Ray

2013

J. Microw. Optoelectron. Electromagn. Appl.

View full text Add to dashboard Cite

In this paper, Specific Absorption Rates (SAR) inside the human head and hand have been analyzed for a handheld mobile phone operated at GSM 900 band. Both the head and hand are modeled electrically using Digital Imaging and Communication in Medicine (DICOM) formatted CT Scan voxel data considering the electrical parameters of different internal anatomical structures. Three-dimensional Finite Difference in Time Domain (FDTD) method has been used to simulate SAR induced in the head and hand. Maximum peak 1-g and 10-g SARs of 1.33 W/kg and 0.388 W/kg are found at antenna resonance frequency of 930 MHz for 0.6 W applied input power which are below the limits set by ANSI/IEEE and FCC, respectively. Index Terms-FDTD, near-field, peak 1-g and 10-g SARs, DICOM data, CT scan, human head and hand models.

show abstract

Section: Introductionmentioning

confidence: 99%

SAR Analysis for handheld mobile phone using DICOM based voxel model

Ali¹,

Ray

2013

J. Microw. Optoelectron. Electromagn. Appl.

View full text Add to dashboard Cite

show abstract

“…With the increasing reliance on electronic devices and fast development of telecom technology, the extra electromagnetic radiation may increase the health risks for people who exposed in the excessive radiation environment for prolonged periods of time, [1][2][3] and the massive electromagnetic interference (EMI) could hazard for the equipment which is sensitive electromagnetic filed. [4][5][6][7] Metallized textiles have gained significant prominence in the realm of electromagnetic shielding owing to their attributes of softness, thinness, and breathability.…”

Section: Introductionmentioning

confidence: 99%

Mathematical modeling for electromagnetic shielding effectiveness characterization of metalized nonwoven fabrics

Hu,

Wang,

Křemenáková

et al. 2023

Journal of Industrial Textiles

View full text Add to dashboard Cite

Previously established models for electromagnetic shielding effectiveness in metallized textiles have limitations in accurately forecasting the shielding effectiveness of metallized nonwovens. In response, this study embarks on a exploration aimed at formulating a mathematical model capable of predicting the electromagnetic shielding effectiveness specific to metallized nonwoven fabrics. By converting the nonwoven parameters into suitable woven parameters and optimizing the existing models, a refined mathematical model is proposed. To validate the feasibility of the model, experimental verification is conducted using three commercial copper coated nonwoven polyester fabrics CuPET10/20/30. At the 1.5 GHz frequency point, both the values derived from the newly prediction model and the experimental observations exhibited satisfied compatibility across all three samples. However, at the 3 GHz frequency point, a noticeable disparity was observed for CuPET10, with the experimental SE value measuring 47.78 dB, deviating from the SE range projected by the predictive model, which encompassed values between 41.18 dB and 45.76 dB. In contrast, the experimental SE values of CuPET20 and CuPET30 at 3 GHz stood at 57.8 dB and 68.56 dB, respectively, closely aligning with the model's predicted SE range of 53.6 dB–63.7 dB and 60.02 dB–70.65 dB, respectively. The two-sample p-test was performed in the frequency range from 0.5 GHz to 3 GHz. The results reveal a significant level of agreement between the average shielding effectiveness (SE) value predicted by the proposed model and the measured SE value from samples CuPET20 and CuPET30, which p value are 0.16 and 0.06.

show abstract

“…As a result, the number of base stations is also increased proportionately to support these large numbers of mobile phones. The interaction of human head or other body parts with the electromagnetic (EM) waves generated from the wireless communication devices, mainly, mobile telephones and BSAs is reported in several research papers [1][2][3][4]. Various numerical techniques played significant roles to calculate SAR or EM field distributions inside human body since it is difficult to experimentally measure these quantities.…”

Section: Introductionmentioning

confidence: 99%

SAR analysis in human head model exposed to mobile base-station antenna for GSM-900 band

Ali

Mukherjee

Ray

2009

2009 Loughborough Antennas &Amp; Propagation Conference

View full text Add to dashboard Cite

Friis transmission equation combined with Finite Difference in Time Domain (FDTD) method has been used to carry out investigation on Specific Absorption Rate (SAR) inside the human head model exposed to a 100 Watt GSM Base Station Antenna (BSA) at GSM-900 band. Maximum local SAR (MLSAR) has been calculated at 925 MHz, keeping distance between head and BSA in the range of 0.5 m to 5.0 m. The human head is modelled as an inhomogeneous sphere of diameter 21.0 cm. The objective of this study is to estimate MLSAR induced in the human head model by BSA and compared with recommended values.

show abstract

EM radiation from Wi-LAN base station and its’ effects in human body

Cited by 9 publications

References 11 publications

SAR Analysis for handheld mobile phone using DICOM based voxel model

SAR Analysis for handheld mobile phone using DICOM based voxel model

Mathematical modeling for electromagnetic shielding effectiveness characterization of metalized nonwoven fabrics

SAR analysis in human head model exposed to mobile base-station antenna for GSM-900 band

Contact Info

Product

Resources

About