The 3D hp FINITE ELEMENT SIMULATION OF ELECTROMAGNETIC WAVES

Radiation of electromagnetic waves from various
sources including cellphone has become a raising
public concern. This has motivated us to study the
scattering and absorption of EM waves on a human
head based on the coupled hp finite/infinite element
(FE/IE) method.The electromagnetic power deposition
and transfer properties of a G1 continuous head
model reconstructed from magnetic resonance imaging
(MRI)data are investigated. The discretization error
is controlled by a self-adaptive process driven by
an explicit a posteriori error estimate. Based on
the benchmark problem of reproducing the Mie series
solution, the scattering of a plane wave on the
curvilinear head model is used to evaluate the hp
FE/IE approach and calibrate
the error bound. The radiation pattern from a short
dipole antenna modeling a cell phone, is analyzed in
terms of the level and distribution of the specific
absorption rates (SAR). The numerical experiments
show that the hybrid hp FE/IE implementation is a
competitive tool for accurate assessment of human
electromagnetic exposure.

Autorentext

Dong Cynthia Xue received her MS and PhD in engineering
mechanics from the University of Texas at Austin in 2002 and
2005, respectively. She joined Baker Hughes in 2005 as a
scientist. Cynthia has published over 30 papers and
patents in 3D EM modeling and petrophysical study.
She is currently a Sr. Petrophysicist at Shell Oil.

Klappentext

Radiation of electromagnetic waves from various
sources including cellphone has become a raising
public concern. This has motivated us to study the
scattering and absorption of EM waves on a human
head based on the coupled hp finite/infinite element
(FE/IE) method.The electromagnetic power deposition
and transfer properties of a G1 continuous head
model reconstructed from magnetic resonance imaging
(MRI)data are investigated. The discretization error
is controlled by a self-adaptive process driven by
an explicit a posteriori error estimate. Based on
the benchmark problem of reproducing the Mie series
solution, the scattering of a plane wave on the
curvilinear head model is used to evaluate the hp
FE/IE approach and calibrate
the error bound. The radiation pattern from a short
dipole antenna modeling a cell phone, is analyzed in
terms of the level and distribution of the specific
absorption rates (SAR). The numerical experiments
show that the hybrid hp FE/IE implementation is a
competitive tool for accurate assessment of human
electromagnetic exposure.