This paper presents a compact coplanar waveguide fed antenna for medical diagnosis of the human head. Early diagnosis of the sophisticated organs inside the human body is possible through microwave medical imaging, which has recently achieved its popularity due to its numerous advantages. The crucial functional element for microwave medical imaging is the antenna. The antenna presented in this paper is conceived and evaluated in contact with an inhomogeneous human head tissue medium, increasing the signal penetration by removing the antenna–air–tissue transition loss. A combination of a meandered line and circular slot are utilized to achieve wideband performance at a subwavelength size. A rectangular cavity is introduced at the back of the antenna to attain directional radiation towards the inhomogeneous human head phantom. The antenna achieves increased bandwidth covering the lower microwave frequency region for medical diagnosis of a human head while minimizing ill-directed r...

中文翻译：

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紧凑型共面波导馈电宽带定向天线，用于医学诊断

本文提出了一种紧凑的共面波导馈电天线，用于人体头部的医学诊断。可以通过微波医学成像对人体内部的复杂器官进行早期诊断，由于其众多的优势，微波医学成像最近已广受欢迎。微波医学成像的关键功能元件是天线。本文介绍的天线是在与不均匀的人头组织介质接触的情况下进行构思和评估的，通过消除天线-空气-组织的过渡损耗来增加信号穿透力。曲折线和圆形缝隙的组合用于在亚波长尺寸下实现宽带性能。在天线的背面引入了一个矩形空腔，以实现朝向不均匀的人头幻像的定向辐射。