EM interaction of handset antennas and a human in personal communications
作者： M.A. Jensen , Y. Rahmat-Samii
DOI: 10.1109/5.362755
关键词: Finite-difference time-domain method 、 Human head 、 Antenna (radio) 、 Folded inverted conformal antenna 、 Specific absorption rate 、 Electrical engineering 、 Handset 、 Transceiver 、 Engineering 、 Directional antenna
摘要: In personal communications, the electromagnetic interaction between handset-mounted antennas and nearby biological tissue is a key consideration. This paper presents thorough investigation of this antenna-tissue using finite-difference time-domain (FDTD) simulation approach with detailed models real-life on transceiver handset. The monopole, side-mounted planar inverted F, top-mounted bent back-mounted F are selected as representative examples external internal configurations. Detailed human head hand implemented to investigate effects location physical model antenna performance. Experimental results provided which support computationally obtained conclusions. specific absorption rate (SAR) in examined for several different antenna/handset It found that head-handset separation 2 cm, SAR has peak value 0.9 3.8 mW/g an average 0.06 0.10 1 W power delivered antenna. Additionally, absorb 48 68% >
byu.edu
osti.gov
sci-hub.se 参考文章(18)
P J Dimbylow, O P Gandhi, Finite-difference time-domain calculations of SAR in a realistic heterogeneous model of the head for plane-wave exposure from 600 MHz to 3 GHz Physics in Medicine and Biology. ,vol. 36, pp. 1075- 1089 ,(1991) , 10.1088/0031-9155/36/8/004
Gerrit Mur, Absorbing Boundary Conditions for the Finite-Difference Approximation of the Time-Domain Electromagnetic-Field Equations IEEE Transactions on Electromagnetic Compatibility. ,vol. 23, pp. 377- 382 ,(1981) , 10.1109/TEMC.1981.303970
R.J. Luebbers, K. Kunz, FDTD modeling of thin impedance sheets (radar cross section calculation) IEEE Transactions on Antennas and Propagation. ,vol. 40, pp. 349- 351 ,(1992) , 10.1109/8.135481
D.M. Sullivan, O.P. Gandhi, A. Taflove, Use of the finite-difference time-domain method for calculating EM absorption in man models IEEE Transactions on Biomedical Engineering. ,vol. 35, pp. 179- 186 ,(1988) , 10.1109/10.1360
P J Dimbylow, FDTD calculations of the SAR for a dipole closely coupled to the head at 900 MHz and 1.9 GHz Physics in Medicine and Biology. ,vol. 38, pp. 361- 368 ,(1993) , 10.1088/0031-9155/38/3/003
M. Fischetti, The cellular phone scare IEEE Spectrum. ,vol. 30, pp. 43- 47 ,(1993) , 10.1109/6.214586
M.A. Jensen, Y. Rahmat-Samii, Performance analysis of antennas for hand-held transceivers using FDTD IEEE Transactions on Antennas and Propagation. ,vol. 42, pp. 1106- 1113 ,(1994) , 10.1109/8.310002
James J. C. Chang, Richard A. Miska, R. Anthony Shober, Wireless Systems and Technologies: An Overview AT&T Technical Journal. ,vol. 72, pp. 11- 18 ,(1993) , 10.1002/J.1538-7305.1993.TB00546.X
D.M. Sullivan, A frequency-dependent FDTD method for biological applications IEEE Transactions on Microwave Theory and Techniques. ,vol. 40, pp. 532- 539 ,(1992) , 10.1109/22.121729
J. Toftgard, S.N. Hornsleth, J.B. Andersen, Effects on portable antennas of the presence of a person IEEE Transactions on Antennas and Propagation. ,vol. 41, pp. 739- 746 ,(1993) , 10.1109/8.250451