SAR Enhancement of Slot Microstrip Antenna by Using Silicon Layer in Hyperthermia Applications

Autor: Javad Nourinia, Changiz Ghobadi, Ehsan Mostafapour, Saman Rajebi
Rok vydání: 2019
Předmět:
Zdroj: Wireless Personal Communications. 111:1761-1774
ISSN: 1572-834X
0929-6212
DOI: 10.1007/s11277-019-06955-1
Popis: A new, conformal and flexible slot microstrip antenna for treatment and ablation of cancerous tumors is proposed in this paper. The main purpose of the proposed antenna is using a silicon layer on the surface of the skin, with/instead of water bolus to reduce the percentage of burns on the skin surface and resolve problems caused by the layer of water bolus. The performance of this design for achieving the maximum local SAR is evaluated carefully and step by step. The performance of this antenna is investigated in multi-stage biological tissue in various positions, including a three-layer tissue (skin, fat and muscle) and 5 layers (skin, fat, muscle, and two cortical and cancellous bone layers). The main feature in this antenna is centralization of SAR at the muscle tissue that it reduces side damages of hyperthermia. The dimensions of the studied antenna are 1.93 mm × 124 mm × 124 mm. Finally constructed antenna and its measured results have been shown and a good consistency between simulated and measured results has been reported.
Databáze: OpenAIRE