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A High-Resolution Imaging Radar at 580 GHz

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8 Author(s)
K. B. Cooper ; California Inst. of Technol., Pasadena ; R. J. Dengler ; G. Chattopadhyay ; E. Schlecht
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We have developed a high-resolution imaging radar at 580 GHz. Coherent illumination in the 576-589 GHz range and phase-sensitive detection are implemented in an all-solid-state design based on Schottky diode sensors and sources. By employing the frequency-modulated continuous wave (FMCW) radar technique, we achieve centimeter-scale range resolution while utilizing fractional bandwidths of less than 3%. Our high operating frequencies also permit centimeter-scale cross-range resolution at several-meter standoff distances without large apertures. Scanning of a single-pixel transceiver enables targets to be rapidly mapped in three dimensions, and here we apply this technology to the detection of concealed objects on persons.

Published in:

IEEE Microwave and Wireless Components Letters  (Volume:18 ,  Issue: 1 )