Measurement Analysis of Specific Absorption Rate in Human Body Exposed to a Base Station Antenna by Using Finite Difference Time Domain Techniques

Hla Myo Tun (Department of Electronic Engineering, Yangon Technological University, Insein Township, Republic of the Union of Myanmar)
Khin Kyu Kyu Win (Department of Electronic Engineering, Yangon Technological University, Insein Township, Republic of the Union of Myanmar)
Zaw Min Naing (Department of Research and Innovation, Ministry of Education, Bahan Township, Republic of the Union of Myanmar)
Devasis Pradhan (Department of Electronics & Communication Engineering, Acharya Institute of Technology, Bengaluru, India)
Prasanna Kumar Sahu (Department of Electrical Engineering, National Institute of Technology, Rourkela, Odisha, India)

Abstract


The system analysis of specific absorption rate (SAR) in human body exposed to a base station antenna by using finite difference time domain techniques was presented in this research works. The objectives of this work are to evaluate the knowledge and awareness about SAR among human body and mobile base station. The paper investigates the electromagnetic wave absorption inside a human body. The human body has been identified using dataset based on 2D object considering different electrical parameters.The SAR convinced inside the human body model exposed to a radiating base station antenna (BSA) has been considered for multiple numbers of carrier frequencies and input power of 20 W/carrier at GSM 900 band.The distance (R) of human body from BSA is varied in the range of 0.1 m to 5.0 m. For the number of carrier frequency equal to one and R = 0.1 m,the concentrated value of whole-body average SAR obtained by FDTD technique is found to be 0.68 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 one.The performance accuracy of this analysis meets the high level condition by comparing with the relevant system development in recent time.


Keywords


Specific Absorption Rate (SAR); Electromagnetic wave; Mobile basic station; Public health safety; RF waves

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References


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DOI: https://doi.org/10.30564/ssid.v3i2.3861

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