Investigation of brain stroke type using UWB antenna in the human head phantom model

Othman, Nabilah Athirah (2022) Investigation of brain stroke type using UWB antenna in the human head phantom model. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Worldwide, brain stroke is the leading cause of adult disability. Stroke occurs when the blood supply in a part of brain is disturbed as a blood vessel bursts or is blocked by a clot. Due to the limitations of current clinical imaging such as Magnetic Resonance Imaging (MRI) and Computed Tomography Scan (CT Scan),including inflexibility and not smartly system, high-cost medical expenses, bulky and safety issues, the researchers are encouraged to explore alternative and complementary tools to available techniques such as microwave imaging to detect the brain stroke in an earlier stage. In this project, an antipodal Vivaldi UWB antenna is proposed for the brain stroke detection in a microwave imaging system. The antenna provides bandwidth (centered between 1-4GHz) with stable gain and high front to back ratio to get a good image for the brain stroke type investigation and to verify the brain stroke detection in the head model.The effect graph was analysed based on different type of substrate for the UWB Vivaldi antenna, return loss result, farfield directivity using FR-4 substratre, with and without head phantom, analysis on normal head phantom with and without tumor also analysis of hemorrhagic and ischemic stroke. This project can be applied as an alternative method for brain stroke type detection, which offers fast detection, no safety issue and a mobile system.

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