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Comparing Liquid Homogeneous and Multilayer Phantoms for Human Body Implantable Antennas

Felício, J.F. ; Fernandes, C. A. ; Costa, J.R.

Comparing Liquid Homogeneous and Multilayer Phantoms for Human Body Implantable Antennas, Proc IEEE International Symp. on Antennas and Propagation - IEEE AP-S/USNC-URSI, Fajardo, Puerto Rico, Vol. -, pp. - - -, June, 2016.

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Abstract
We compare the performance of a ultrawideband implantable antenna when immersed in a liquid homogeneous phantom and in a multilayer phantom. The goal is to assess how good the simple liquid phantom is to represent the real body over a broad bandwidth. We evaluate not only the frequency-domain parameters – input reflection (s11) and transmission coefficients (s21) – but also the performance of the antenna in the time domain – pulse fidelity and window containing 90% of the pulse energy. The results show a good resemblance between both phantom results, suggesting that liquid homogeneous phantoms may be enough to test the performance of this type of antennas and potentially simplify the measurement setup.