Design of Wideband Antenna for Brain Imaging System

Abstract

As technology advances, devices become more compact and comfortable. Microwave imaging systems can be used to diagnose any head disorders, thus avoiding the need for large imaging equipment such as PET, X-rays, MRIs, and ultrasounds, etc. In this research work, a wideband microstrip patch antenna for operation at 3 to 10 GHz frequency is proposed as a cost-effective alternative to the expensive MRI diagnostic system for head imaging. The designed antenna can resonate at a 5.3 GHz frequency and produce a gain and directivity of 0.8562 and 3.22 dBi, respectively. Here, the mentioned antenna is designed using partial grounding and a microstrip patch with FR-4 substrate having a relative permittivity of 4.4 and a thickness of 1.6mm. The Antenna size is 72x63 mm and covers frequency from 3 GHz up to 10 GHz with 5.3 GHz resonant frequency. Computer simulation using CST software was used for feature analysis of the antenna.