Title :
SAR analysis in human head model exposed to mobile base-station antenna for GSM-900 band
Author :
Ali, M. D Faruk ; Mukherjee, Sujoy ; Ray, Sudhabindu
Author_Institution :
Dept. of Electron. & Telecommun. Eng., Bengal Eng. & Sci. Univ., Shibpur, India
Abstract :
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.
Keywords :
cellular radio; finite difference time-domain analysis; mobile radio; radiowave propagation; Friis transmission equation; GSM-900 band; SAR analysis; base station antenna; finite difference in time domain method; frequency 925 MHz; human head model; maximum local SAR; mobile base-station antenna; power 100 W; specific absorption rate; Antennas and propagation; Electromagnetic scattering; Finite difference methods; Humans; Mathematical model; Maxwell equations; Mobile antennas; Specific absorption rate; Time domain analysis; Transmitting antennas; BSA; FDTD; Friis transmission equation; MLSAR;
Conference_Titel :
Antennas & Propagation Conference, 2009. LAPC 2009. Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4244-2720-8
Electronic_ISBN :
978-1-4244-2721-5
DOI :
10.1109/LAPC.2009.5352413
