An Extremely Wideband Printed Monopole Antenna with Dual Notched Stop Bands

This paper proposes a design of an extremely wideband printed monopole antenna with dual notched stop bands for worldwide interoperability for microwave access (WiMAX) and wireless local area networks (WLAN). The individual notch frequencies are controlled by the individual split ring resonators (SRRs) and central notch frequency is determined by the individual SRRs physical dimensions. Predicted extremely wide impedance bandwidth of antenna is 2.67-22 GHz, for VSWR 2 is achieved for rejecting WiMAX (3.3-3.69 GHz) and WLAN (5.15-5.825 GHz) band signals. Significant gain reduction over the notched stop bands and nearly omnidirectional radiation patterns over operating frequencies is also analysed.