An Efficient, Low-Cost, and Reliable Monostatic Microwave Imaging (MWI) Approach for the Detection of Breast Tumor Using an Ultra-Wideband Dielectric Resonator Antenna

Abstract

AbstractIn this article, a low-cost, unproblematic, and efficient microwave imaging technique have been proposed to detect the presence of breast tumor using an inverted “L” shaped ultra-wideband (UWB) dielectric resonator antenna. The proposed antenna has been used as a sensor to transmit and receive the radio frequency (RF) signals toward and from the target, i.e., human breast phantom. The proposed DRA has been designed and simulated in CST MWS with fractional bandwidth 70.96% (6.1–12.6 GHz) and maximum peak gain 3.92 dB at 12.5 GHz of frequency. To accomplished the tumor detection process in CST software, the proposed DRA is rotated around the breast phantom in circular manner in elevation from 0-π and azimuthal planes from 0-2π and backscattered signals (with and without presence of tumor inside breast phantom) are recorded at different positions. The recorded reflection parameters are proceed in different beam-forming algorithms: delay and sum (DAS) and delay multiply and sum (DMAS) to reconstruct the 2D image of the breast tumor in XY plane using MATLAB R2018a.KeywordsMicrowave imagingBio-modelBreast tumorBeam-forming algorithms CSTMATLAB