Design of narrowband microstrip antenna of flexible material for health monitoring system

This paper presents the design of a microstrip antenna and its characteristics for narrow band application by using Computer Simulation Technology (CST). Main purpose for this project is to implement the antenna on a flexible dielectric material that is Poly Vinyl Chloride (PVC) having dielectric constant £r =2.7 as the substrate and it is for easy fitted on human body for health monitoring. The antenna is designed to wearable and flexible for Body centric Wireless Communication (BCWCs) application, especially in the 2.45 GHz Industrial, Scientific and Medical (ISM) band. The radiation characteristics are simulated and analyzed when the antenna is under flat and bend conditions. In the simulation result, the antenna under flat achieve 2.47 GHz at (SI 1), return loss -48.6 dB in flat antenna. While in bending condition there have four angle which is 20°, 30°, 40° and 50° angle degree bending of the antenna. The good conductivity and flexibility of the material used, based on the good performance of the flexible antenna that used in the antenna. The radiating element of the antenna is able to stand a mechanical deformation for example bending. So the flexibility of wearable antenna is achieved.