Modeling and imaging security threats using a single-frequency adaptable reflect-array

This work is aimed at the characterization and validation through simulations of a reflect-array based mm-wave screening system for security applications. This system is able to reconstruct the surface of the whole human body, and it can detect concealed objects under clothing using a single frequency. Innovative physical-optics (PO) related techniques are introduced to computationally simulate complete realistic 3D models of human bodies with both accuracy and computational efficiency. Additionally, simulations of arbitrary dielectric and metallic structures located on the surface of a human model are used to assess the ability of the reflect-array to detect concealled objects.