Ultra wideband antenna with quad band rejection characteristics

A miniaturized Quad band-notch co-planar waveguide (CPW) ultrawideband (UWB) antenna is presented in this paper. The band-notch characteristics around S-band (2.70–3.10 GHz) and downlink C-band (3.70–4.20 GHz) are realized by etching meander-line and horizontal slot in radiating patch. Furthermore, by adding an extended stub and L-shaped slot on ground plane of the antenna, rejection in WLAN (4.90–5.75 GHz), and WP AN (6.60–7.40 GHz) is also achieved. The antenna system is realized on Rogers Duroid 5880 having compact dimensions of 28 × 30 mm
²
. The proposed antenna achieves omni-directional radiation patterns while also providing rejection at desired notches.