Metamaterial based unidirectional antenna for bone fracture detection

Abstract

Of the wide-ranging applications of microwave engineering from nondestructive testing, and food preparation to sterilization, medical imaging applications have attracted the most focus. This is because microwave imaging offers the potential for low-cost and non-ionizing imaging technology in the wake of personalized medicine that necessitates regular scanning. This work proposed herein investigated antenna design that can achieve better performance metrics including overall gain, directivity, and specific absorption rate (SAR). Real-time imaging of the bones is crucial for rehabilitation in sports, elderly homes, and emergency systems. Our design operating at 2.541 G Hz offers a gain of 5.041dB, with unidirectional whose main lobe is at 0 degrees. By adopting reactive impedance surfaces and artificial magnetic conductors the scattered radiation is greatly reduced making the SAR lower as compared to existing work.