A wearable dual-band square slot antenna with stub for ISM and WiMAX applications

This paper proposes a wearable dual-band square slot antenna with stub for ISM and WiMAX applications. The antenna has been built on a Vinyl substrate with a relative permittivity of 2.5 and a thickness angle of 0.47 mm. The square side length and the length of the stub are chosen to enable the antenna to provide a dual-band on 2.4 GHz and 3.5 GHz. The simulated and practical S-Parameters of the proposed structure show an excellent performance of the antenna with and without the bending. The radiation patterns have a good power distribution in both cases. The gain of the antenna is around 2.5 dB for both bands. This antenna is a good candidate for the application required a dual-band wearable antenna within the ISM and WiMAX bands. The High Frequency Structure Simulator (HFSS) has been used to provide the simulated results.