超材料
同轴
微波食品加热
材料科学
谐振器
分裂环谐振器
光学
镜头(地质)
天线(收音机)
平方(代数)
同心的
光电子学
声学
计算机科学
物理
电信
几何学
数学
作者
Vincenza Portosi,Antonella Maria Loconsole,Marcello Valori,V. Marrocco,Francesco Bonelli,G. Pascazio,Vito Lampignano,Antonella Fasano,Francesco Prudenzano
标识
DOI:10.1109/mms55062.2022.9825526
摘要
The insertion of a metamaterial (MTM) lens based on Closed Loop Resonator (CLR) into a needle microwave applicator is investigated for a more efficient hyperthermia cancer therapy. Several geometries are designed and optimized, Closed Circular-Ring Resonator (CCRR) with circular loops and Closed Square-Ring Resonator (CSRR) with square loops, with one or more concentric loops. The MTM lens is bended around to the radiating section of the antenna to form a cylindrical 3D structure. Preliminary investigations have been focused to increase the device feasibility and patient wellness. The applicator is a slot coaxial antenna inserted into a surgical needle of 16 G and operating around at the center of Industrial, Scientific, and Medical (ISM) frequency band. The experimental results pertaining to a preliminary fabricated prototype of needle applicator are encouraging, and the simulation results suggest that they could be improved by using the investigated MTM lens.
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