The interaction between the human body and the Ultra Wide Band radar pulse

Abstract

Our goals consist in designing and realizing a Ultra Wide Band (UWB) radar for a medical application. On this basis, we study in this contribution the interaction between the radar's electromagnetic pulse and the human body layer in a UWB frequency range. Indeed, this study helps us to design this radar system and prove the possibility of taking an image of each human body layer by exploiting the several reflected echoes. In fact, we propose an analytic method that enables us to compute the reflected echo by the human body of an oblique incident radar pulse. This new method discards the mutual influence between two adjacent human body layers in order to retrieve a recursive expression that computes the total reflection and transmission coefficients by each human layer. Then, we induce the specific absorption rate of each human body structure. In the same vein, this result enables the designer to estimate the propagation medium of the human body. According to this study, we can realize a UWB radar in an attempt to capture an image of the intern human body structure and detect some dangerous infections like cancer.