Modeling and Simulation of UWB Wave Propagation for Early Detection of Breast Tumors in Cancer Dielectric Imaging Systems

  • Ikram E. Khuda Iqra University
Keywords: S-parameters, UWB, transceiver, reflection, transmission coefficient, breast cancer, imaging, back propagation, forward propagation.

Abstract

In this paper, we have proposed an analytical body (breast-tissue) propagation model in terms of scattering parameters towards the design goal of a suitable ultra-wide band, (UWB) transceiver for early breast tumor detection. The scattering parameters are reflection (and transmission coefficients (Τ). We considered a heterogeneous breast model consisting of skin, adipose and glandular tissues as body (breast) channel and planar wave to propagate through it for UWB frequency range. A tumor layer was also considered as an inner layer to investigate tumorous tissue effects. Effective dielectric properties and scattering parameters (through reflected/ scattered or forward transmitted signals) for the whole breast were determined. Due to dispersive nature of heterogeneous breast, Γ and T vary with frequency; showing their decisive nature for a particular center frequency of the UWB transceiver systems. In case of 2.0 GHZ and 4.5 GHz center frequency UWB system, the back propagated (reflected/ scattered) signals showed approximately 45.45% and 63.3% respectively higher amplitude than forward propagated signals for the breast channel with tumor, indicating high value of dispersion present in human breast tissues.

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Author Biography

Ikram E. Khuda

Iqra University, Defence View, Shaheed-e-Millat Road (Ext.), Karachi, Pakistan

Published In
Vol 21 No 2, Mar 31, 2017
How to Cite
[1]
I. E. Khuda, “Modeling and Simulation of UWB Wave Propagation for Early Detection of Breast Tumors in Cancer Dielectric Imaging Systems”, Eng. J., vol. 21, no. 2, pp. 237-251, Mar. 2017.