Syed An Nazmus Saqueb, J. Garry, G. Smith, N. Nahar, K. Sertel
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THz Imaging Using Rail-Based Synthetic Aperture Radar for the Detection of Concealed Objects
We present, a rail-based synthetic aperture radar (SAR) imaging system for THz band. A 1-port full-duplex frequency extender coupled with a vector network analyzer was used as the transceiver module. Using a motorized linear stage, slanted object is scanned across the transmitter field of view and reflection is measured in frequency domain in two waveguide bands (220–325 GHz and 500–750 GHz). Processing the frequency data, images of metallic objects concealed in thick dielectric layers were reconstructed with resolution as fine as 0.8 mm.
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