Ultra-Wideband Antennas for Biomedical Imaging Applications: A Survey

Sensors

Marta Cavagnaro¹  Umair Rafique¹  Stefano Pisa¹  Renato Cicchetti¹  Orlandino Testa¹ 

[1] Department of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome, 00184 Rome, Italy;

关键词: microwave imaging;    near-field;    UWB antennas;   

DOI  :  10.3390/s22093230

来源: DOAJ

【 摘 要 】

Microwave imaging is an active area of research that has garnered interest over the past few years. The main desired improvements to microwave imaging are related to the performances of radiating systems and identification algorithms. To achieve these improvements, antennas suitable to guarantee demanding requirements are needed. In particular, they must operate in close proximity to the objects under examination, ensure an adequate bandwidth, as well as reduced dimensions and low production costs. In addition, in near-field microwave imaging systems, the antenna should provide an ultra-wideband (UWB) response. Given the relevance of the foreseen applications, many UWB antenna designs for microwave imaging applications have been proposed in the literature. In this paper, a comprehensive review of different UWB antenna designs for near-field microwave imaging is presented. The antennas are classified according to the manufacturing technology and radiative performances. Particular attention is also paid to the radiation mechanisms as well as the techniques used to reduce the size and improve the bandwidth.

【 授权许可】

Unknown