On-Body Monopole Antenna Design and Analyses for the UWB Applications

Abstract: In this paper, design and analysis of a polygonal shaped patch antenna for on-body applications is presented. The patch antenna simulated to operate on ultra-wide band (UWB) frequency range with the dimensions of the 22.5 mm x 38 mm x 0.5 mm. The substrate material of antenna is Roger-RO4003, which has a relative permittivity of 3.55 and loss tangent of 0.0027. The antenna resonates from the 1.26 GHz to 11.1 GHz efficiently. In the paper, characteristic specifications of antenna such as return loss, gain and radiation patterns are given and interpreted successively. In the simulation, 3 biological layers consisting of skin, fat and muscle defined to represent the human body and the simulation has been done using these layers. Proposed antenna can be used in the applications such as medical, industrial, information systems, positioning systems etc. In addition to this, the small profile of the antenna makes it portable and suitable for ultra-wide band on-body applications