Investigations of reduced SAR personal communications handset using FDTD

Autor:	Raed A. Abd-Alhameed, J.A. Vaul, J. Moustafa, Peter S. Excell, N.J. McEwen
Rok vydání:	2001
Předmět:	Physics Human head Null (radio) Dynamic range Acoustics fungi Finite-difference time-domain method Specific absorption rate Handset law.invention Azimuth Antenna array law Electronic engineering
Zdroj:	11th International Conference on Antennas and Propagation (ICAP 2001).
DOI:	10.1049/cp:20010227
Popis:	A two-element phased antenna array for a mobile handset is investigated using the finite difference time domain (FDTD) method. The array is designed to provide a spatial null in the near field zone in the direction of the human head. The optimisation algorithm to obtain the minimum peak specific absorption rate (SAR) is addressed. The dynamic range of the feeding voltages in relation to the reduction in SAR is discussed. The overall efficiency and azimuth coverage are improved and the peak specific absorption rate in the head can be reduced by at least 8 dB. The results are compared with those from a normal single element handset.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::df6c07df5a6d8cd63b6fcd315b961c2e https://doi.org/10.1049/cp:20010227 Zobrazit plný text záznamu