An ultra-wideband monopole antenna for skin cancer detection

Abstract

a low-profile modified elliptical structure ultra-wide-band monopole antenna for skin cancer detection is presented in this paper. The antenna is developed over an FR-4 lossy substrate with permittivity 4.3 and a height of 1.6 mm. The dimensions of antenna is 20 × 28 × 1.6 mm3 and it covers a frequency range of 2.82-12.56 GHz. The proposed antenna consists of elliptical and circular shaped radiators with partial ground plane, to achieve an optimized low profile structure with ultra-wide band. The proposed ultra-wideband antenna(UWB) is used to detect the unhealthy tumor in the skin with the help of time-domain and SAR analysis. The rectangular human skin model with skin, fat, muscle, and bone layers is developed in fullwave simulator. The Proposed UWB antenna is safe for skin exposure as it shows SAR [1g] of 0.296 W/Kg (on skin phantom) at the frequency of 3.4 GHz, respectively. Using time-domain and SAR analysis, the suggested UWB antenna offers a potential alternative to validate the presence of unhealthy tissue in the human body.