Design of Rubber Substrate based Flexible Antenna with DGS for WBAN Applications

Addressing physical flexibility of microstrip patch antenna (MPA) for wireless body area network (WBAN) applications and developing such a antenna with a flexible substrate has many design issues. This manuscript stresses on the improvement in bandwidth and return loss of a centre-fed flexible MPA designed on a rubber substrate with defected ground structure (DGS) to enhance antenna performances. ISM band of2.45 GHz is chosen as an operating frequency. Parameters like return loss, Bandwidth and VSWR are used for analysing the performance, which show an improvement when DGS is employed. For simulation and analysis, HFSS software has been used.