A simple miniaturized dual band notched UWB antenna

A compact dual band notched ultra wideband antenna is presented. The antenna is designed to notch two prominent wireless standards namely WLAN (5.15-5.85 GHz) and WiMax (3.3-3.85 GHz). The notched frequency bands are introduced by embedding two 90o clockwise rotated S-shaped stubs in the radiating patch. Insertion of two I-Shaped notches along both sides of the microstrip feed line in the ground plane enhanced the bandwidth up to 120%. The proposed antenna is compact having size 20×18 mm² and covers the UWB frequency band from 2.8-10.6 GHz. The VSWR, gain and radiation pattern of the proposed antenna are simulated using computer simulation technology software. The antenna is also fabricated and results shows good acceptance with the simulated results.