Bandwidth enhancement of ultra-wide band swastika slot loaded micro-strip antenna with band-notch characteristic

摘要

Bandwidth enhancement of an ultra-wide band swastika slot loaded antenna with band notch characteristic is presented. The antenna consists of an exciting rectangular patch on the front side and a partial ground plane on the backside of the substrate. A swastika shape is etched on patch, by inserting corner slots to the swastika shape, notched frequency band is improved. The simulated impedance is defined by VSWR < 2 of 11.00 GHz operating over a frequency range 3.71–14.71 GHz with a single notched band of WLAN (5.27–6.22 GHz). Simulated Average gain of about 4 dBi is observed over the whole UWB band except at WLAN band notch.