Abstract
A defected ground structure (DGS) based ultra-wideband (UWB) monopole antenna is proposed for detecting human brain tumor. Here, by transforming the conventional antenna ground plane into DGS, the impedance bandwidth of the antenna is significantly increased to 4.02 GHz. The operating frequency of the antenna ranges from 2.94 GHz to 6.96 GHz. Furthermore, the antenna occupies a 3-D gain of 3.93 dB and a high radiation efficiency of 93.81% within the given bandwidth. The proposed antenna is geometrically planar, having a dimension of $50\times 50\times 1.5\text{m}\text{m}^{3}$. The antenna is designed on Rogers RO3003 dielectric substrate with a relative permittivity of 3 and a thickness of 1.5 mm since it is flexible for high frequency applications. In addition, a six-layer human head phantom model comprising of skin, fat, bone, dura, cerebrospinal fluid (CSF) and brain with a tumor of 5 mm radius is proposed to evaluate the performance of the antenna in specified application maintaining the safety limit of specific absorption rate (SAR). The detection of brain tumor is assured with a drastic rise of current density and SAR compared to the normal healthy tissue. Therefore, this antenna might be used in microwave imaging based human brain tumor detection.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
