FE-based microwave inverse scattering in nonconstant-exponent spaces: A numerical assessment

The development of microwave-based inverse scattering techniques to inspect bodies and structures in a noninvasive way has inspired numerous applications [1] , [2] , which range from biomedical diagnostics to industrial settings and geophysics [3]. In all these promising fields, a successful implementation of microwave inverse scattering methods is founded on a couple of main ingredients, namely, a correct modeling of the electromagnetic problem along with the measurement configuration, and a proper inversion procedure capable of retrieving an accurate estimation of targets' properties.