Microwave imaging using frequency domain method for brain stroke detection

Brain Stroke is the leading cause of disability and death in the world in which the supply of blood to the brain is stopped by a clot or burst of blood vessel. Microwave techniques have been investigated as a reliable solution for the immediate detection of brain strokes. To that end, an appropriate signal acquisition and processing method is needed to detect the damaged tissue using the extremely weak back scattered microwave signals from the imaged head. In that regard, a frequency domain method integrated with a multi-static ultra wide band antenna array is proposed. The utilized array comprises 24 tapered slot antennas which are located around the head to collect the back scattered signals in a multi-static mode. An image reconstruction method based on Mathieu function is utilized to predict the scattered electric field and power inside the elliptical shape imaging region. The system's configuration, imaging method and obtained results are reported in this paper.