Performance evaluation of medium-matched waveforms and pulse shaping for application in ultrawideband intra-body technologies

In this letter we analyze the use of medium-matched signals and pulse shaping techniques to improve the performance of intra-body technologies. Firstly, we describe the evolution of the 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 UWB medical applications, 3-20GHz. A 3D representation of the body has been achieved by cuboids with a resolution of 8mm³. The dispersive propagation is analyzed for purposes of radar imaging and intra-body communications. The performance of a classical rectangular and a medium-matched waveform, the Brillouin pulse, are described.