文章基本信息

标题：Miniaturized Ultra Wide Band Microstrip Antenna with Defect Ground Structure for Brain Tumor Detection
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作者：Hemant Kumar Gupta ; Vikas Maheshwari ; Vandana Vikas Thakery 等
期刊名称：International Journal of Hybrid Information Technology
印刷版ISSN：1738-9968
出版年度：2016
卷号：9
期号：11
页码：13-24
出版社：SERSC
摘要：Brain tumour is the largest problem in the world. Few researchers have worked in that area. In the paper brain tumour is detected by the three different parameter of the proposed antenna namely return-loss of the antenna, current density of the brain phantom model with tumour and without tumour and specific absorption rate (SAR) with and without tumour. None of the previous work detects a tumour by three different parameter simultaneously. Initially the proposed antenna is designed at 2.45GHz and then applies different technology to make it ultra wide band. Antenna frequency is shifted and it become the ultra wide band and gives a bandwidth of 2.89GHz.S11 parameter of antenna achieved maximum at 7.624GHz that is 45.76dB. Found current density of the antenna is 770.6A/m2, SAR of the antenna is 2.67*106Watt/m3.Brain is assumed as a single layer Brain Phantom model in which brain is considered as centre radius of sphere of 10mm radius and placed in contact with upper part of the antenna, dielectricconstant of brain is assumed as 45.8.it gives a return loss with brain model is 31.89dB at 7.61GHz andcurrent density is 801.24A/m2, SAR of the brain phantom model with antenna is 3.15*106Watt/m3.Now triangular shape tumor is assumed with dielectric constant of the tumor is 52.06 and it gives a return loss with tumor 32.26 at 7.544GHz.current density with tumor is 960.3A/m2, SAR of the phantom model with tumor and antenna is 3.069*106A/m2.The paper detect tumors by three different parameter simultaneously that is very important aspect.
关键词：Brain tumor; ultra wide band (UWB);Return loss(RL);Brain Phantom ;model