Title :
Design of two-element probe antenna for UWB near-field imaging
Author :
Wang, Yifan ; Bialkowski, Marek E.
Author_Institution :
Sch. of Inf. Technol. & Electr. Eng., Univ. of Queensland, Brisbane, QLD, Australia
Abstract :
This paper has reported a microwave imaging system employing a monopulse radar technique to eliminate adverse effects of strong reflection from the air-imaged body interface. This technique is realized using a newly constructed ultra wideband twoelement probe antenna fed by a 180° hybrid. The validity of the proposed system has been verified via full-wave EM simulations. Using the signal data obtained from the outof-phase fed UWB probe and by applying a confocal image reconstruction algorithm, the presence of a 9mm-diameter cylindrical target inside the 100mm diameter container filled with vegetable oil has been detected by just visual inspection of the produced image.
Keywords :
antenna feeds; image reconstruction; microwave antennas; microwave imaging; radar imaging; ultra wideband antennas; ultra wideband radar; vegetable oils; UWB near-field imaging; air-imaged body interface; antenna fed; confocal image reconstruction; cylindrical target; full-wave EM simulation; microwave imaging system; monopulse radar technique; two-element probe antenna; ultra wideband microwave radar technique; vegetable oil; Arrays; Microwave antennas; Microwave imaging; Microwave theory and techniques; Probes; Ultra wideband antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-4967-5
DOI :
10.1109/APS.2010.5562349
