Basic Evaluation of Antennas Used in Microwave Imaging for Breast Cancer Detection

Microwave imaging is one of the most promising techniques in diagnosis and screening of breast cancer and in the medical field that currently under development. It is nonionizing, noninvasive, sensitive to tumors, specific to cancers, and low-cost. Microwave measurements can be carried out either in frequency domain or in time domain. In order to develop a clinically viable medical imaging system, it is important to understand the characteristics of the microwave antenna. In this paper we investigate some antenna characteristics and discuss limitations of existing and proposed systems.