1 October 2010 Design and testing of an active 190-GHz millimeter-wave imager
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The design and testing of an active 190-GHz imaging system is presented. The system features two beam-scanning antennas, one of which transmits a vertical fan beam, and the other which receives a horizontal fan beam. By correlating the transmitted and received signals, an output is obtained that is proportional to the millimeter-wave reflectivity at the intersection of the two fan beams. Beam scanning is obtained by rotating a small subreflector within each antenna, allowing rapid scanning. The system has an angular resolution of 0.3 deg, a field of view of 14×14 deg, and operates at a standoff distance of 5 m.
© (2010) Society of Photo-Optical Instrumentation Engineers (SPIE)
Greg P. Timms, Michael L. Brothers, John D. Bunton, John W. Archer, Grahame C. Rosolen, Yue Li, Andrew D. Hellicar, Juan Tello, Stuart G. Hay, "Design and testing of an active 190-GHz millimeter-wave imager," Journal of Electronic Imaging 19(4), 043019 (1 October 2010). https://doi.org/10.1117/1.3514744 . Submission:


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