A New Antenna with Dual Band-Notched Function by Shorting Pin and S-Shaped Coupling Element

A simple microstrip UWB antenna with dual band- notch function is presented. The antenna consists of a square patch and a partial ground plane. For expanding the impedance bandwidth, H-shaped slot on the ground plane is etched. Also, to obtain two notched bands, S-shaped coupling element and an inverted L-shaped arm ended up a shorting pin are utilized. The antenna has a compact size of 15×22 mm2 which has been printed on an Fr4 substrate. Moreover, the proposed antenna has been successfully fabricated and measured, indicating broadband matched impedance (2.6-11.4 GHz, VSWR≤2) and dual band-notched (3.2-4 GHz and 5.1-6.1 GHz) respectively.