Improved debye model for experimental approximation of human breast tissue properties at 6 GHz ultra-wideband centre frequency

Abstract

This paper investigates complexity of breast tissue structure and mathematical equations to describe their dielectric properties. Experimental breast tissue dielectric properties are compared to theoretical results from mathematical postulates to find their gaps. Polynomial fitting is then used to propose an analytical model (viz. improved first order relaxation Debye model) to bring theoretical results as close as possible to experimental results. The proposed model is able to bridge the gap efficiently by reducing 5.9 % average error. This will help researchers to consider actual tissue properties to develop real-like breast phantom for early breast cancer detection based researches. This would aid in faster experimental / clinical research output and practical-implementation which would save precious human life.