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Numerical experimental validation of a GM‐FDTD code for the study of cellular phones
Author(s) -
Pisa Stefano,
Cavagnaro Marta,
Piuzzi Emanuele,
Lopresto Vanni
Publication year - 2005
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.21180
Subject(s) - finite difference time domain method , specific absorption rate , imaging phantom , code (set theory) , microwave , method of moments (probability theory) , electronic engineering , antenna (radio) , computer science , engineering , acoustics , optics , mathematics , physics , electrical engineering , telecommunications , statistics , set (abstract data type) , estimator , programming language
This paper presents a numerical–experimental validation of a finite‐difference time‐domain code employing a graded‐mesh (GM‐FDTD). To this aim, a prototype of a mobile phone (mock‐up), equipped with a helical antenna, is manufactured and modelled using the GM‐FDTD code and a freeware code based on the method of moments (MoM). The return loss (RL), together with the near electric‐ and magnetic‐field distributions, have been computed using the GM‐FDTD code and compared with the MoM results and measurements. Moreover, the specific absorption rate (SAR) induced by the phone inside a cubic phantom has been measured and evaluated with the GM‐FDTD code. The agreement between the numerical and experimental results is within acceptable measurement uncertainty. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 47: 396–400, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21180