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A Study of Ultrawideband Antennas for Near-Field Imaging

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4 Author(s)
Jafari, H.M. ; Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont. ; Deen, M.J. ; Hranilovic, S. ; Nikolova, N.K.

A compact ultrawideband (UWB) antenna has been designed for UWB cancer detection systems. The numerical analysis and experimental characterization of a printed monopole antenna fed by a 50-Omega coplanar waveguide (CPW) and operating in a lossy coupling medium is presented. A detailed 3D model of the antenna and the biological environment has been constructed and simulated in XFDTD and HFSS. The near-field pattern of the antenna in the proximity of a multilayer human body model and the effect of the human body on the input matching of the antenna are studied. Experimental results show that the return loss is below -9.6 dB from 3.4 GHz to 9.9 GHz

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Antennas and Propagation, IEEE Transactions on  (Volume:55 ,  Issue: 4 )