Hybrid Microwave Approach for Phaseless Imaging of Dielectric Targets

A hybrid approach for phaseless imaging of dielectric targets is proposed in this letter. A two-probe measurement strategy with the related phase-retrieval method is adopted in conjunction with an inversion procedure based on an inexact-Newton method to give an efficient and low-cost imaging setup, avoiding the need of multiple acquisition surfaces. A preliminary experimental validation on real input data is presented.