Detection of Breast Cancer using a Flexible Antenna at ISM Band

Breast cancer is a major health issue affecting women globally, and for detection traditional medical imaging methods like ultrasound and X-ray mammography have drawbacks due to low tissue contrast and potential risks. A low-cost wearable wireless antenna designed at 5.8 GHz is designed which can be integrated in wearable garments and in flexible biomedical devices. The antenna is constructed of a rectangular patch printed on a flexible Kapton polyimide substrate (relative permittivity, $\varepsilon r=3.4$) The prototype has been tested in concave bent geometries for radii of 25,45, and 73m.After bending there is a slight shift in the S-Parameter from 5.8GHz to 5.734 GHz, 5.7535GHz and 5.752GHz. When a breast phantom with tumor is positioned at a certain distance from antenna, a slight shift of S-parameter is observed. Compared to non-malignant breast cells, malignant cells have distinct electrical properties. SAR value of the proposed antenna is 0.496 W/kg for 10 g and 1.27 W/kg for 1 g of body tissue which is safe for body tissue. The designed antenna’s compact, portable, and flexible design, along with its performance in bending forms, demonstrate its applicability forfuture electronic devices.