Title :
Multi-band imaging and adaptive beam-steering techniques for the submillimetre-wave range
Author :
Luukanen, A. ; Ala-Laurinaho, Juha ; Hakli, J. ; Gomes-Martins, D. ; Kiuru, Tero ; Leivo, M. ; Rautiainen, A. ; Saily, J. ; Tamminen, A. ; Toivanen, H. ; Tuovinen, Reijo ; Raisanen, Antti
Author_Institution :
MilliLab., VTT Tech. Res. Centre of Finland, Espoo, Finland
Abstract :
Imaging at submillimetre-wave frequencies is of considerable interest thanks to potentially superior performance at longer stand-off ranges in comparison to mm-wave imaging thanks to improved angular resolution. In this paper we discuss the performance of multispectral passive imaging system centred around 250, 400 and 750 GHz. Multi-band imagery is interesting given its potential for rudimentary materials differentiation, a capability that would substantially benefit e.g. security imaging applications. The passive imaging activities are complemented by activities towards developing rapid electronic beam steering capability for imaging submm-wave radars. Results from two project aiming at constructing such beam steering systems at 120 GHz and at 650 GHz are presented.
Keywords :
beam steering; differentiation; radar imaging; submillimetre wave imaging; submillimetre wave radar; terahertz wave imaging; adaptive beam-steering technique; angular resolution; frequency 120 GHz; frequency 650 GHz; millimeter wave imaging; multiband imaging; multispectral passive imaging system; rapid electronic beam steering; rudimentary material differentiation; security imaging application; submillimetre-wave imaging radar; Beam steering; Broadband antennas; Imaging; Materials; Radar imaging; RF-MEMS; THz imaging; beam steering; concealed weapons detection; millimetre-wave imaging; radiometry; reflectarray; submillimetre-wave imaging;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
