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.