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Modelling of sleeve monopole antenna in a coupling medium for breast imaging application

Breast Imaging is a beneficial method of detecting the abnormalities in the breast compared to current modalities. It consist of an array of antennas illuminates the breast, to be used both as signal source radiating elements and the receiver of scattered waves. In order to enhance the detection process, breast imaging employs a coupling medium between an antenna and the breast. Therefore, it is essential to understand the behavior of the antenna in the coupling medium. In this paper, a sleeve monopole antenna with a top load is taken to cover the frequency band from 500 MHz to 3000 MHz. Corn syrup as a coupling media is used to achieve best matching with the real tissue. The proposed antenna is simulated in coupling media and results are presented in comparison with that of free space with the help of High Frequency Structure Simulator (HFSS). The selected antenna then optimized to radiate inside the coupling medium.