Electrically small antenna loaded with CRLH for notched-band application

A Monopole antenna loaded with CRLH resonator (composite right left hand) for multi-band application also for miniaturization effect, the antenna contains a monopole antenna with a defected ground at the bottom side, the antenna is loaded with a set of TL (transmission line) as inductors and capacitors. The aim of this work is to exhibit the bandwidth and the multi-band by the insertion of the CRLH, the miniaturization effect on the antenna giving dimension of 0.13λοχ0.16λο regarding the first resonant frequency. The obtained results by simulation from HFSS show that the antenna has four bands in the range of 1.85 GHz to 1.99 GHz as LTE band, the second from 2.99 GHz to 3.15 GHz, the third from 4.5GHz to 5.6GH as WiMax and WLAN, the last one from 6.25 GHz to 7.35 GHz. A maximum gain of 4.5 dBi is achieved.