Parametric study of power absorption patterns induced in adult and child head models by small helical antennas

Progress in Electromagnetics Research

Volumn 94, Issue , 2009, Pages 49-67

  Christopoulou, M ^a   Koulouridis, S ^b   Nikita, K S ^a  

^a NATIONAL TECHNICAL UNIVERSITY OF ATHENS NTUA   (Greece)

^b UNIVERSITY OF PATRAS   (Greece)

Author keywords

[No Author keywords available]

Indexed keywords

DIELECTRIC PROPERTIES; DIRECTIONAL PATTERNS (ANTENNA); FINITE DIFFERENCE TIME DOMAIN METHOD; METHOD OF MOMENTS; TIME DOMAIN ANALYSIS;

ADULT AND CHILD HEAD MODEL; COMPARATIVE ASSESSMENT; FINITE DIFFERENCE TIME DOMAIN SIMULATIONS; MOBILE COMMUNICATIONS; REALISTIC EXPOSURE SCENARIO; SEMI-ANALYTICAL METHODS; SEPARATION DISTANCES; SPHERICAL HEAD MODELS;

HELICAL ANTENNAS;

EID: 69949147673     PISSN: 10704698     EISSN: 15598985     Source Type: Journal    
DOI: 10.2528/PIER09031305     Document Type: Article

References (38)

1. ICNIRP,"Guidelines for limiting exposure to time-varying electric, magnetic and electromagnetic fields(up300GHz)," Health Phys., Vol. 74, 494-522, Apr. 1998.
2. «IEEE standard for safety levels with respect to human exposure to radio frequency electromagnetic fields, 3kHz to 300GHz," IEEE, Std C95.1 (Revision of IEEE Std C95.1-1991), 1-238, 2005.
3. Mobile Phones and Health, IEGMP, Vol. 15, No. 5, National Radiological Protection Board, Chilton, 2004.
4. Gandhi, O. P., G. Lazzi, and C. M. Furse, "Electromagnetic absorption in the human head and neck for mobile telephones at 835MHz and 1900MHz," IEEE Trans. Microwave. Theory Tech., Vol. 44, 1884-1897, Oct. 1996.
5. Schönborn, F., M. Burkhardt, and N. Kuster, "Differences in energy absorption between heads of adults and children in the near field of sources," Heath Phys., Vol. 74, 160-168, Feb. 1998.
6. Keshvari, J., R. Keshvari, and S. Lang, "The effect of increase in dielectric values on specific absorption rate (SAR) in eye and head tissues following 900, 1800 and 2450MHz radio frequency (RF) exposure," Phys. Med. Biol., Vol. 51, 1463-1477, Mar. 2006.
7. Hadjem, A., D. Lautru, C. Dale, M. F. Wong, V. F. Hanna, and J. Wiart, "Study of specific absorption rate (SAR) induced in two child head models and in adult heads using mobile phones," IEEE Trans. Microwave. Theory Tech., Vol. 53, 4-11, Jan. 2005.
8. Nikita, K. S., et al., "A study of uncertainties in modeling antenna performance and power absorption in the head of a cellular phone user," IEEE Trans. on Microwave Theory Tech., Vol. 48, 2676-2685, Dec. 2000.
9. Wang, J. and O. Fujiwara,"Comparison and evaluation of electromagnetic absorption characteristics in realistic human head models of adult and children for 900-MHz mobile telephones," IEEE Trans. Microwave Theory Tech., Vol. 51, 966-971, Mar. 2003.
10. Hirata, A., K. Shirai, and O. Fujiwara,"On averaging mass of SAR correlating with temperature elevation due to a dipole antenna," Progress In Electromagnetics Research, PIER 84, 221-237, 2008.
11. Ibrahiem, A., C. Dale, W. Tabbara, and J. Wiart, "Analysis of the temperature increase linked to the power induced by RF source," Progress In Electromagnetics Research, PIER 52, 23-46, 2005.
12. Liu, Y., Z. Liang, and Z. Yang, "Computation of electromagnetic dosimetry for human body using parallel fdtd algorithm combined with interpolation technique," Progress In Electromagnetics Research, PIER 82, 95-107, 2008.
13. Khalatbari, S., D. Sardari, A. A. Mirzaee, and H. A. Sadafi, «Calculating SAR in two models of the human head exposed to mobile phones radiations at 900 and 1800MHz," PIERS Online, Vol. 2, No. 1, 104-109, 2006.
14. Kouveliotis, N. K. and C. N. Capsalis, "Prediction of the SAR level induced in a dielectric sphere by a thin wire dipole antenna," Progress In Electromagnetics Research, PIER 80, 321-336, 2006.
15. Gandhi, O. P. and G. Kang, "Some present problems and a proposed experimental phantom for SAR compliance testing of cellular telephones at 835 and 1900MHz," Phys. Med. Biol., Vol. 47, 1501-1518, Apr. 2002.
16. Koulouridis, S. and K. S. Nikita, "Study of the coupling between human head and cellular phone helical antennas," IEEE Trans. Electromagn. Compat., Vol. 46, 62-70, Feb. 2004.
17. Ebrahimi-Ganjeh, M. A. and A. R. Attari, "Interaction of dual band helical and PIFA handset antennas with human head and hand," Progress In Electromagnetics Research, PIER 77, 225-242, 2007.
18. Koulouridis, S. and K. S. Nikita, "Characteristics of power absorption in human head models exposed to normal mode helical antennas," Proc. Second International Workshop on Biological Effects of Electromagnetic Fields, Vol. I, 241-250, Rhodes, Greece, Oct. 7-11, 2002.
19. Farkas, L. G., Anthropometry of the Head and Face, 2nd edition, App. A, 244, Raven Press, New York, 1994.
20. Kuster, N., R. Kästle, and T. Schmid, "Dosimetric evaluation of handheld mobile communications equipment with known precision," IEICE Trans. Communications, Vol. E80-B, 645-652, May 1997.
21. Peyman, A., S. J. Holden, S. Watts, R. Perrott, and C. Gabriel, "Dielectric properties of porcine cerebrospinal tissues at microwave frequencies: In vivo, in vitro and systematic variation with age," Phys. Med. Biol., Vol. 52, 2229-2245, 2007.
22. Wang, J., O. Fujiwara, and S. Watanabe, "Approximation of aging effect on dielectric tissue properties for SAR assessment of mobile telephones," IEEE Trans. Electromagn. Compat., Vol. 48, 408-413, May 2006.
23. Reißenweber, J. and J. Poess,"Growth in infancy and childhood with tables," Extensive report supported by FGF, Wireless and Cable Research Group, Department of Information Technology, INTEC, Universitein Gent, Short-term Mission: Mobile Communication and Children (in the framework of the COST 281 project), Working Group: Anatomical properties and biophysical and biochemical mechanisms, 2003.
24. Simms, D. L. and J. G. Neely, "Thickness of the lateral surface of the temporal bone in children," Ann. Oto. Rhinol. Laryn., Vol. 98, 726-731, 1989.
25. Olley, P. and P. S. Excell, "Classification of a high-resolution voxel image of a human head," Proc. Int. Workshop at the National Radiological Protection Board, P. J. Dimbylow (ed.), 16-23, Chilton, U.K., 1995.
26. Tsakanikas, V. and V. Triantos, "Comparative evaluation of power absorption due to electromagnetic radiation of mobile handsets used by adults and children (FDTD method)," Diploma Thesis (in Greek), NTUA, Jul. 2005.
27. Gabriel, C., S. Gabriel, and E. Corthout, "The dielectric properties of biological tissues," Phys. Med. Biol., Vol. 41, 2231-2293,1996.
28. Tinniswood, A. D., C. M. Furse, and O. P. Gandhi, «Computations of SAR distributions for two anatomically-based models of the human head using CAD files of commercial telephones and the parallelized FDTD code," IEEE Trans. Antennas Propagat., Vol. 46, 829-833, Jun. 1998.
29. Taflove, A. and S. C. Hagness, Computational Electrodynamics: The Finite-difference Time-domain Method, 2nd edition, Artech House, 2000.
30. Koulouridis, S. and K. S. Nikita, "Analysis of the interaction between a layered spherical human head model and an arbitrary shaped antenna using a hybrid Green/MoM technique," Proceedings of 8th International Conference on Advances in Communications and Control, 25-29, Crete, Greece, Jun. 2001.
31. Mahmoud, K. R., M. El-Adawy, S. M. M. Ibrahem, R. Bansal, and S. H. Zainud-Deen, "Investigating the interaction between a human head and a smart handset for 4G mobile communication systems," Progress In Electromagnetics Research C, Vol. 2, 169-188,2008.
32. Kang, X. K., L. W. Li, M. S. Leong, and P. S. Kooi, "A method of moments study of SAR inside spheroidal human head and current distribution along handset wire antennas," Journal of Electromagnetic Waves and Applications, Vol. 15, No. 1, 61-76, 2001.
33. Kouveliotis, N. K., S. C. Panagiotou, P. K. Varlamos, and C. N. Capsalis, "Theoretical approach of the interaction between a human head model and a mobile handsets helical antenna using numerical methods," Progress In Electromagnetics Research, PIER 65, 309-327, 2006.
34. Kouveliotis, N. K., P. J. Papakanellos, E. D. Nanou, N. I. Sakka, V. S. G. Tsiafakis, and C. N. Capsalis, "Correlation between SAR, SWR and distance of a mobile terminal antenna in front of a experimental validation," Journal of Electromagnetic Waves and Applications, Vol. 17, No. 11, 1561-1581, 2003.
35. Yoshida, K., A. Hirata, Z. Kawasaki, and T. Shiozawa, "Human head modeling for modeling for handset antenna design at 5 GHz band," Journal of Electromagnetic Waves and Applications, Vol. 19, No. 3, 401-411, 2005.
36. Kiminami, K., A. Hirata, Y. Horii, and T. Shiozawa, "A study on human body modeling for the mobile terminal antenna design at 400MHz band," Journal of Electromagnetic Waves and Applications, Vol. 19, No. 5, 671-687, 2005.
37. Kainz, W., A. Christ, T. Kellom, S. Seidman, N. Nikoloski, B. B. Beard, and N. Kuster, "Dosimetric comparison of the specific anthropomorphic mannequin (SAM) to 14 anatomical head models using a novel definition for the mobile phone positioning," Phys. Med. Biol., Vol. 50, 3423-3445, Jul. 2005.
38. Li, L. W., M. S. Leong, P. S. Kooi, and T. S. Yeo, «Specific absorption rates in human head due to handset antennas: A comparative study using FDTD method," Journal of Electromagnetic Waves and Applications, Vol. 14, No. 7, 987-1001,2000.