Small Button Antenna for Wearable applications

This paper focuses on the design, simulation, and manufacture of a miniaturized antenna operating in the 5.8 GHz frequency band for ISM applications. This antenna is fabricated using a dielectric resonator placed above textile materials. This work, therefore, aims to study and design a textile antenna with a dielectric resonator that behaves like a button that will be worn on the body. This is to improve the performance of this antenna. The geometry and dimensions of this antenna have been optimized using CST software. We did several simulations to determine the antenna parameters that most influence its performance. The simulation and measurement results are in good agreement and show that the DRA improves the performance of the antenna and can isolate the human body well. The gain of the antenna is 5.4 dBi and the efficiency is 60%. Consideration is given to the radiation pattern of the proposed flexible DRA antenna.