Bheesayagari, B.C.Shajahan, E.S.Bhat, M.S.2026-02-062014IFIP International Conference on Wireless and Optical Communications Networks, WOCN, 2014, Vol., , p. -21517681https://doi.org/10.1109/WOCN.2014.6923059https://idr.nitk.ac.in/handle/123456789/32531A novel triple-band notched circular ultrawideband (UWB) antenna with a band rejection characteristics at WiMAX, WLAN and C-band is presented. A design involving two concentric G-shaped circular slots etched on the circular patch structure and a U-shaped slot on the CPW transmission line is used to reject and control the notched frequency bands. The proposed antenna has good UWB characteristics from 3-12 GHz with VSWR < 2, except frequency bands of 3.3-3.6 GHz, 3.7-4.2 GHz, and 5.1-5.9 GHz. The designed structure exhibits good radiation characteristics over the desired band and is a good candidate for UWB applications. © 2014 IEEE.