Title :
A compact nonlinear-transmission-line-based mm-Wave SFCW imaging radar
Author :
Noujeim, Karam ; Malysa, Greg ; Babveyh, Afshin ; Arbabian, Amin
Author_Institution :
Microwave Meas. Div., Anritsu Co., Morgan Hill, CA, USA
Abstract :
This paper presents the results of initial measurements collected using a compact 60 GHz stepped-frequency continuous-wave (SFCW) imaging radar based on nonlinear transmission lines (NLTLs), and driving a pair of dual-waveguide-fed horn antennas. A range resolution of 2.22 cm is achieved using a bandwidth of over 6.5 GHz, and synthetic focusing is applied to achieve an azimuth resolution of 1 cm with mechanical scanning. The system demonstrates imaging of multiple targets obscured by a large non-metallic interface (cardboard).
Keywords :
CW radar; horn antennas; millimetre wave antennas; millimetre wave imaging; radar antennas; radar imaging; radar resolution; NLTL-based radar; SFCW imaging radar; azimuth resolution; dual-waveguide-fed horn antennas; frequency 60 GHz; mechanical scanning; nonlinear transmission lines; nonmetallic interface; stepped- frequency continuous-wave imaging radar; Frequency measurement; Image resolution; Imaging; Radar antennas; Radar imaging; Synthetic aperture radar; Millimeter Wave Radar; Radar Imaging; Sensors;
Conference_Titel :
European Radar Conference (EuRAD), 2014 11th
Conference_Location :
Rome
DOI :
10.1109/EuRAD.2014.6991307
