Automatic detection and localization of anomalies on radar images of personnel taken at the
airport security checkpoints is a necessary step of having an end-to-end automatic threat …

Abstract In near-field applications, 3-D imaging with the millimeter-wave multiple-input-
multiple-output (MIMO) array provides accurate reconstruction with high dynamic range …

A choke ring horn antenna has been designed for use as an RF applicator in a compact
range in vitro 28 GHz bioelectromagnetic exposure system. The 30 mm× 50 mm horn …

This paper compiles measured complex dielectric constants of benign and hazardous
materials used for developing algorithms for personnel scanners at airports at 30 GHz. The …

Airport security is a concern in modern travel infrastructure, with the need to identify
prohibited items while ensuring passenger safety and minimizing difficulties. Object …

Fast and accurate characterization of concealed threats and benign objects is of great
importance for increasing the efficiency of mm-wave imaging radar personnel screening …

Millimetre-wave (mmW) reconstructed images are of complex-valued in nature, suggesting
that they contain both magnitude and phase. It is known that from the phase aspect of the …

Distinguishing benign materials from potential hazards is an essential step in speeding up
the personnel screening process in airports. In our previous works [1],[2], we have …

Detection and characterization of suspicious body-worn objects is necessary for safe and
effective personnel screening. In airports, developing a precise system that can distinguish …

Aiming at the problems of cost limitation and high complexity in near-field security imaging
for uniform array antennas, a strong sparse low sidelobe sparse array design algorithm is …