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We present a prototype bistatic compact radar range operating at 160 GHz and capable of collecting fullypolarimetric radar cross-section and electromagnetic scattering measurements in a true far-field facility. The bistatic ISAR system incorporates two 90-inch focal length, 27-inch-diameter diamond-turned mirrors fed by 160 GHz transmit and receive horns to establish the compact range. The prototype radar range with its modest sized quiet zone serves as a precursor to a fully developed compact radar range incorporating a larger quiet zone capable of collecting X-band bistatic RCS data and 3D imagery using 1/16th scale objects. The millimeter-wave transmitter provides 20 GHz of swept bandwidth in the single linear (Horizontal/Vertical) polarization while the millimeter-wave receiver, that is sensitive to linear Horizontal and Vertical polarization, possesses a 7 dB noise figure. We present the design of the compact radar range and report on test results collected to validate the system’s performance.
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C. J. Beaudoin, T. Horgan, G. DeMartinis, M. J. Coulombe, T. Goyette, A. J. Gatesman, William E. Nixon, "A prototype fully polarimetric 160-GHz bistatic ISAR compact radar range," Proc. SPIE 10188, Radar Sensor Technology XXI, 101880Z (1 May 2017); https://doi.org/10.1117/12.2262372