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Design of two-element probe antenna for UWB near-field imaging

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2 Author(s)
Yifan Wang ; School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Qld, Australia 4072 ; Marek E. Bialkowski

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.

Published in:

2010 IEEE Antennas and Propagation Society International Symposium

Date of Conference:

11-17 July 2010