Research demonstrates a hybrid fractal microstrip patch antenna enhances imaging for skin and breast cancer, indicating promising non-invasive techniques.
Microwave Imaging is a promising alternative to the existing techniques for cancer detection because of its inherent advantages of being non-invasive and non-ionizing. Radar-based Monostatic Microwave Imaging (RMMI) is a preferred alternative as compared to multi-static radar-based imaging as it utilizes the same antenna as a transceiver for recording S parameter data and plotting the 2-D dielectric profile of scanned body parts under test. Thus the research work presented in the manusript explains the study of low-profile miniaturized Ultra-Wide Band (UWB) Hybride Fractal Microstrip Patch Antenna (HFMPA) which has an overall dimension of 24×20×0.8 mm3. It offers a peak gain of 5 dB at 16 GHz and an operational BW of 11.23 GHz from the 5.71-16.94 GHz frequency range. This manuscript presents the in-silico procedure for carrying out the MSMRI of designed forearm and breast phantoms using the proposed HFMPA. The validation of the MSMRI procedure is carried out using the prototype of the proposed HFMPA, Vector Network Analyzer (VNA) (E-5063A), bio-phantom of forearm and breast, and data is recorded with PC using GPIB connections. The recorded data is pre-processed and then used in the Coherent-Factor Delay Multiply and Sum (CF-DMAS) beamforming algorithm to regenerate the 2 D dielectric profile of the scanned body part. The proposed HFMPA system is safe for human exposure, as simulations show the radiating antenna has a SAR below 1.6 W/kg for 1 g of tissue in both breast and forearm phantoms.
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Kaur et al. (2025) studied this question.
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