A wearable microstrip patch antenna for detecting brain cancer

This paper represents a novel design of wearable pentagon shaped microstrip patch antenna which operates at Industrial, Scientific and Medical (ISM) band (2.4–2.4835GHz) for detecting brain cancer. ISM band is selected for its flexibility toward larger bandwidth. The antenna is designed with a feature that its thickness and dimension is small which makes it practically wearable on human head. This antenna is designed on FR-4 substrate with the thickness of 0.8 mm and the relative permittivity of 4.3 F/m. The real size of the antenna is (33×23×1). Taking into consideration of the patient safety the antenna is surfaced on the human head phantom model which consists of six homogeneous layers that are skin, fat, skull, Dura, cerebrospinal fluid (CSF) and brain respectively using CST microwave studio. The designed wearable antenna observes the return loss, voltage standing wave ratio (VSWR), Radiation pattern in human head phantom model and the results are compared with cancerous tumor consisting head model that carries a 5 mm tumor inside human brain. It is prevised that the proposed antenna is to be functioned in ISM band under IEEE standard safety regulation.