Design and Analysis of Efficient H-Shaped Multiband Antenna with DGS for Wireless Applications

An efficient H-shaped micro strip multiband antenna is constructed and simulated with slot structure of Split Ring Resonator (SRR) in a ground plane as Defected Ground Structure (DGS) for high frequency applications is proposed. Micro Strip patch antenna is mostly preferred because of its very good radiation properties. Also it is the light weight and low cost device so its usage is very high and its fabrication method is very easy. DGS is used to alter the current path in the ground part of the patch antenna by making this it provides multiband support. The H shape patch antenna with the proper ground plane is normally chosen for increasing the bandwidth of the antenna by providing impedance matching and reduce loss. This type of antenna mostly used in where small size and broad beam width are required. In the simulation VSWR, radiation pattern, gain, return loss were measured using simulation software HFSS.