Early Detection of Breast Tumour Using QuasiStatic Microwave Imaging with Two Elements Tapered Slot Vivaldi MIMO Antenna
Sharmeen Sultana1, Neela Chattoraj2
1Sharmeen Sultana, Scholar, Department of Electronics and Communication Engineering, Birla Institute of Technology Mesra, Ranchi (Jharkhand), India.
2Neela Chattoraj, Associate Professor, Department of Electronics and Communication Engineering, Birla Institute of Technology Mesra, Ranchi (Jharkhand), India.
Manuscript received on 04 October 2025 | First Revised Manuscript received on 20 October 2025 | Second Revised Manuscript received on 04 November 2025 | Manuscript Accepted on 15 November 2025 | Manuscript published on 30 November 2025 | PP: 33-37 | Volume-14 Issue-4, November 2025 | Retrieval Number: 100.1/ijrte.D830814041125 | DOI: 10.35940/ijrte.D8308.14041125
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: A quad-static microwave imaging system designed for medical use, with an emphasis on early-stage breast tumour detection, is presented in this paper. A compact two-element MIMO Vivaldi antenna, designed for practical microwave imaging, is used in the proposed system. The antenna is appropriate for radar-based diagnostic systems due to its end-fire radiation characteristic. With a maximum gain of 16.98 dBi at 2.75 GHz, it operates across a broad frequency range from 2 GHz to 14.8 GHz. Additionally, it satisfies the FCC (USA) limit for localized SAR, which is 1.6 W/kg averaged over 1 gram of tissue. With overall dimensions of 49 × 85 × 0.8 mm³, the antenna is designed and simulated on an affordable FR4 substrate that offers both structural compactness and a wide bandwidth. For validation, HFSS was used to create and simulate a breast phantom model that replicated the dielectric characteristics of human tissue. When the transmission coefficient (S21 and S41 parameters) is used to analyse the system, it is shown that tumours as small as 4 mm in diameter can be detected. The findings support the suggested antenna and imaging system’s ability to accurately detect small breast tumours, potentially leading to earlier diagnosis and better treatment outcomes.
Keywords: Microwave Imaging, Vivaldi Antenna, Breast Tumour Detection, SAR Analysis, Ultrawideband (UWB).
Scope of the Article: Recent Engineering & Technology