TY - GEN
T1 - Application of ultrashort-pulse radar to non-destructive inspection
AU - Takaichi, Shinya
AU - Mase, Atsushi
AU - Kogi, Yuichiro
AU - Kim, Kang Wook
PY - 2008
Y1 - 2008
N2 - An ultrashort-pulse radar (USPR) has been developed for non-destructive inspection of structures, search of buried objects, and biomedical imaging. An impulse with 150 ps pulse width is used as a source for the present USPR. Since the bandwidth of the source is inverse relation to the pulse width, we can expect wide frequency range in microwave region which benefits high spatial resolution as well as time resolution. Therefore antennas for the USPR are required to provide acceptable characteristic in wide frequency band width. Nondestructive inspection for concrete structures utilizes the contrast in the dielectric properties between cement and air at cracks. In this paper, the comparison of inspected results of the concrete samples are described using three types of antennas, an openended rectangular waveguide antenna, a bow-tie antenna, and a log-spiral antenna.
AB - An ultrashort-pulse radar (USPR) has been developed for non-destructive inspection of structures, search of buried objects, and biomedical imaging. An impulse with 150 ps pulse width is used as a source for the present USPR. Since the bandwidth of the source is inverse relation to the pulse width, we can expect wide frequency range in microwave region which benefits high spatial resolution as well as time resolution. Therefore antennas for the USPR are required to provide acceptable characteristic in wide frequency band width. Nondestructive inspection for concrete structures utilizes the contrast in the dielectric properties between cement and air at cracks. In this paper, the comparison of inspected results of the concrete samples are described using three types of antennas, an openended rectangular waveguide antenna, a bow-tie antenna, and a log-spiral antenna.
KW - Bow-tie antenna
KW - Component
KW - Logspiral antenna
KW - Microwave imaging
KW - Non-destructive inspection
KW - Ultrashort-pulse radar (USPR)
UR - http://www.scopus.com/inward/record.url?scp=58449123842&partnerID=8YFLogxK
U2 - 10.1109/ICCT.2008.4716255
DO - 10.1109/ICCT.2008.4716255
M3 - Conference contribution
AN - SCOPUS:58449123842
SN - 9781424422517
T3 - International Conference on Communication Technology Proceedings, ICCT
SP - 316
EP - 319
BT - 2008 11th IEEE International Conference on Communication Technology Proceedings, ICCT 2008
T2 - 2008 11th IEEE International Conference on Communication Technology, ICCT 2008
Y2 - 10 November 2008 through 12 November 2008
ER -