Design of UWB Monopole Antenna with EBG Structure and Ground with Rectangular Slots

In this paper a low cost, simple and small size ultrawideiband circular monopole antenna is designed. The notch band is created by multiple number of slots in the ground plane. The proposed antenna is designed on the FR-4 substrate of height 1.6 mm.  The antenna is designed with ground plane of dimension 50 x 55 mm and is fed by 50 ohm microstrip line. It is found that the EBG design approach  in the ground plane is a good candidate for frequency rejection of wide range. The antenna achieves an operational bandwidth of 1.5 Ghz  (1.5 Ghz to 3 Ghz) which included ISM band (1.8 and 2.4 Ghz), WiFi / Bluetooth (2.4 Ghz), Satellite Radio (2.3 Ghz), and GPS (1.575 Ghz).

Keywords: UltraWideBand (UWB), Electromagntic band Gap (EBG), notch Band