Evaluation of the Brillouin precursor performance for ultra wide band intra-body technologies

Ana Vazquez Alejos, Francisco Falcone, Muhammad Dawood, Erik Aguirre and Leire Azpilicueta

Journal of Electromagnetic Waves and Applications, 2013, vol. 27, issue 17, 2213-2220

Abstract: In this letter, we describe the formation and the evolution of Brillouin precursor fields through human tissues by using a frequency-domain analysis technique and a multi-pole Cole–Cole model to characterize the dielectric properties of the human body tissues, in a frequency band designated by the FCC for ultra wide band medical applications, which extends from 0.5 to 20 GHz. A 3D representation of the human body model has been implemented by employing a discretized mesh of cuboids with a resolution of 8 mm3 in which the frequency dispersive material parameters for different tissues have been considered. The dispersive propagation is analyzed for the purposes of radar imaging and intra-body communications. The performance of a classical rectangular pulse, a Brillouin pulse and a medium-matched waveform is described. The results show the potential application of this type of communication scheme in order to improve the achievable measurement range and provide better signal to noise ratios.

Date: 2013
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DOI: 10.1080/09205071.2013.837015

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