Microstrip antenna with swastik slot for UWB applications

In this paper first we design a swastik slot loaded rectangular microstrip antenna fed by a microstrip line (50 Ω) and then analyze its performance. It consists of a rectangular patch with swastik-shaped slot on one side of the substrate (30*30*1.6 mm³) and partial ground plane (16*8 mm²) on the other side. Here, we use FR-4 epoxy substrate. The proposed antenna is designed by using HFSS simulation tool. This antenna design gives impedance bandwidth of 10.5 GHz operating over a frequency range of 4.1 to 14.6 GHz with VSWR <; 2. These characteristics make the designed antenna suitable for various UWB applications.