Title :
Range enhancement of nulling angle in FN-PMMW imaging using cooling dielectric tube array
Author :
Sato, Hiroyasu ; Kuriyama, Kohei ; Sawaya, Kunio
Author_Institution :
Grad. Sch. of Eng., Tohoku Univ., Sendai, Japan
fDate :
Oct. 29 2012-Nov. 2 2012
Abstract :
A nulling source with the cooling dielectric tube with narrow-width parabolic cylinders was developed to enhance range of the nulling angle in the FN-PMMW Imaging. High contrast PMMW images is obtained using proposed forward-nulling passive millimeter wave (FN-PMMW) imaging method with wide nulling angle range of up to 32°. Also the geometry will be suitable for the flow of people at the airport security check. Although one side of the nulling source is developed, the configuration of multi-side nulling source will be useful to increase the contrast.
Keywords :
airports; millimetre wave imaging; security; FN-PMMW imaging; airport security check; cooling dielectric tube array; forward-nulling passive millimeter wave imaging; narrow-width parabolic cylinder; nulling angle; range enhancement; Arrays; Brightness temperature; Cooling; Dielectrics; Electron tubes; Imaging; Lenses;
Conference_Titel :
Antennas and Propagation (ISAP), 2012 International Symposium on
Conference_Location :
Nagoys
Print_ISBN :
978-1-4673-1001-7
