Skin sarcoma stage detection using antenna resonant scale

• Published in: International journal of applied electromagnetics and mechanics Vol. 74; no. 1; pp. 43 - 56
• Main Authors: Silue, Dozohoua, Labidi, Mondher, Choubani, Fethi
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 01.01.2024; Sage Publications Ltd
• Subjects: Antennas; Frequency shift; Metal sheets; Reflectance; Resonant frequencies; Substrates; Tumors; Small antenna; skin sarcoma; frequency shift detection; early cancer diagnosis; scale of cancer diagnosis
• ISSN: 1383-5416; 1875-8800
• DOI: 10.3233/JAE-230048

In this paper, a small antenna is proposed to diagnose skin sarcoma at an embryonic stage. The antenna has an area of 30.54 × 15.27 mm2 and resonates at 1429 MHz with a reflection coefficient of −17.64 dB. The structure consists of a 35 μm copper sheet etched on a 1.6 mm FR-4 substrate. The diagnosis is based on the resonance frequency shift, and the SAR (Specific Absorption Rate) variation when the antenna is positioned on malignant tissue. For the simulations, a three-layer body phantom (skin, fat, muscle), and a half-sphere tumor phantom were considered. Simulations of the antenna performances showed that for a tumor of 100 μm, the resonant frequency, and the SAR decrease by 2 MHz, and 1.09 mW/Kg, respectively. In addition to sarcoma detection, the antenna’s 3.6 dBi gain allows for 124.47 m biomedical communication links in a complex environment.