Design and Analysis of a Small Size Printed UWB Monopole Antenna with Quad Band Notch functionality using Dual Number of TVDS EBG Cell

Abstract A small size microstrip fed ultra-wide bandwidth (UWB) antenna with quad band notch characteristics has been described in this paper. Band notch characteristics are achieved by loading dual number of two via double-slot type electromagnetic band gap (TVDS EBG) structures. The size of TVDS - EBG structure is less compared to other conventional EBG cells. Detailed parametric study, surface current distributions, input impedance and equivalent circuit model has been conducted to elucidate the operational mechanisms underlying notch band in the proposed antenna. The proposed antenna design has been put into practical use and measurement outcomes are portrayed to compare against simulation results that notable align well. Proposed design provides impedance matching from 2.91 to 11.62 GHz (for 2 ≤ VSWR) with successful suppression of WiMAX (3.300–3.700 GHz), WLAN (4.910–5.350 GHz, and 5.630–5.820 GHz) and X-band ITU (8.03–8.50 GHz). The measured far-field radiation patterns are stable and group delay is almost constant in the whole operating frequency band. Thus the compact antenna might be an excellent candidate for UWB utilization..