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Changes in specific absorption rate in the head due to metallic gap loops and a simulated mobile phone source in a study of the effects of jewellery
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posted on 2008-05-20, 16:24 authored by William WhittowWilliam Whittow, Chinthana PanagamuwaChinthana Panagamuwa, Robert EdwardsRobert Edwards, Shahid Bashir, J. C. VardaxoglouThis paper investigates Specific Absorption Rates (SAR) in the human head due to partial metallic
gap loops (incomplete circular jewellery rings) at 1800MHz. A Finite-Difference Time-Domain (FDTD) code
was used to analyse different sizes and positions of circular rings with a section removed, near a homogenous
cubic phantom with a dipole excitation. These partial loops significantly increased the SAR. Measurements
from a DASY4 measurement system as well as commercial code results are used for validation. The FDTD code
has also been used to analyse the effects of metallic jewellery gap loops when added to the nose of an
anatomically realistic digital human head with a realistic source. A monopole on a box was placed in front of the
face to represent a PDA. The gap loops on the nose of the realistic head behaved similarly to those near the
cubic head. Gap loops of different sizes resonated when their orientation were changed. This means that smaller
sizes of jewellery, in certain geometries, may resonate when used with mobile communications equipment than
was previously expected.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Citation
WHITTOW, W. G. ... et al, 2008. Changes in specific absorption rate in the head due to metallic gap loops and a simulated mobile phone source in a study of the effects of jewellery. 2008 Loughborough Antennas and Propagation Conference, Loughborough, UK, 17-18 March, pp. 197-200Publisher
© Institute of Electrical and Electronics Engineers (IEEE)Publication date
2008Notes
This is a conference paper [© 2008 IEEE]. It is also available from: http://ieeexplore.ieee.org/ Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.ISBN
9781424418947Language
- en