Triple notched coplanar waveguide-fed novel ultrawide band antenna with time domain analysis

This research proposition introduces a novel microstrip antenna design that features triple notches for ultra-wideband (UWB) applications. The antenna, measuring 35.4 mm x 28.82 mm x 1.57 mm, incorporates rectangular and semi-circular slots, as well as a pentagonal stub. A modified U-shaped slot on the pentagonal stub creates one notched frequency band at 3.3-3.7 GHz. Additionally, two Split Ring Resonators (SRRs) are integrated into the antenna's rear surface, resulting in two more notched bands at 5.1-5.8 GHz and 7.1-7.8 GHz. Operating within a frequency range from 3 to 11.2 GHz with VSWR <= 2, the antenna effectively excludes the triple stop bands at 3.3-3.7 GHz (11.4%), 5.1-5.8 GHz (12.8%) and 7.1-7.8 GHz (9.4%). The proposed antenna has been successfully prototyped and verified. An extensive result analysis has been conducted, confirming that the developed antenna is suitable for application in a range of wireless systems. Moreover, the article includes the implementation of an equivalent circuit for the proposed antenna.