Ultrawideband (UWB) antennas are widely used as core devices in high-speed wireless\ncommunication. A novel compact UWB monopole antenna with an additional narrow band for\nWi-Fi applications comprising a metamaterial (MTM) is proposed in this paper. The antenna has\na compact size of 27 * 33 mm2 and consists of a V-shaped slot with two rectangular slots in the\nradiation patch. The inductance and capacitance develop due to the V-shaped slot in the radiation\npatch. The proposed antenna has -10 dB bandwidths of 3.2 GHz to 14 GHz for UWB and 2.38 GHz\nto 2.57 GHz for narrowband, corresponding to 144% and 7.66% fractional bandwidths, respectively.\nThe measured gain and efficiency meet the desired values for UWB and Wi-Fi applications. To verify\nthe performance of the antenna, the proposed antenna is fabricated and tested. The simulated and\nmeasured results agree well at UWB frequencies and Wi-Fi frequencies, and the antenna can be used\nas a smart device for portable IoT applications.
Loading....