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Characterization of a 94 GHz radiometric imager with mechanical beam-scanning

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6 Author(s)
Nova, E. ; Dept. Signal Theor. & Commun., Univ. Politec. de Catalunya (UPC), Barcelona, Spain ; Abril, J. ; Romeu, J. ; Broquetas, A.
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This paper presents the characterization in terms of spatial resolution and radiometric sensitivity of a W-band Total Power Radiometer (TPR). The TPR is based on a heterodyne receiver with 64 dB of gain and 6.5 dB of noise figure. An antenna system consisting on a pan-tilt scanner has been designed and built in order to aim a 100 mm offset parabolic reflector. With this system, relative temperature images of targets at a 1 m standoff range are obtained in indoor environments with an spatial resolution of 4 cm.

Published in:

Microwave Workshop Series on Millimeter Wave Integration Technologies (IMWS), 2011 IEEE MTT-S International

Date of Conference:

15-16 Sept. 2011