Design of compact dual F-slots UWB monopole antenna for wireless devices

In this paper, an Ultra Wideband (UWB) Monopole antenna is proposed for several applications. The size of the antenna is 55mm × 35mm × 1.7mm with dual F-slots in its ground plane and three different pairs of rectangular slots in its upper patch. In order for the antenna to resonate at multiple frequencies or to attain wide impedance bandwidth, the relative lengths, heights and positions of the slots are tuned to the required resonant frequency. The simulation results are obtained using the tool Advanced Design System 2014 (ADS 2014). The −10 dB impedance bandwidth obtained by the proposed antenna at two resonant frequencies 2.5 GHz and 4.9 GHz are 683 MHz (2.280 GHz to 2.963 GHz) and 4.352 GHz (4.667 GHz to 9.019 GHz) respectively. The maximum gain of 3.1 dBi at 2.5 GHz and 2.26 dBi at 5 GHz are also achieved. The antenna will operate for 2.4 GHz ISM band, Bluetooth & Zigbee applications, IEEE 802.11 WiMAX at 5.5 GHz, WLAN (5 GHz) applications of IEEE 802.11a, IEEE 802.11n & IEEE 802.11ac and also covers the part of 4–8 GHz (C-band) satellite frequency band.