A low cost and efficient breast cancer detection method with a staircase shaped ultrawide band dielectric resonator antenna using monostatic radar based microwave imaging technique

In this article, a staircase-shaped ultra-wide band dielectric resonator antenna (DRA) has been used as sensor for the detection of breast tumor by monostatic radar-based microwave imaging (MRMWI). The proposed DRA fractional bandwidth (BW) 98.5% and high peak gain 5.98 dB along with dual polarization behaviour from 5.12 to 8.2 GHz 11.02-13.8 GHz. MRMWI setup, is placed over phantom at distance 7 mm provides safe exposure radiation (<1.6 W/Kg). For simulation, it rotates around fixed interval in elevation (0-180°) azimuthal (0-360°) planes. It works radiate receives reflected signals towards scanned area simultaneously. To validate results, fabricated connected vector network analyzer (as done simulation) artificial phantom. That replica human made gelatin+sugar, Vaseline wheat flour+water equivalent skin, fat respectively. Afterward S11 responses are recorded presence absence inside A significant variation values leads tumors that processed further beam-forming algorithms; delay sum (DAS) delay-multiply (DMAS) reform 2-dimensional image MATLAB.