Design and analysis of meta-material based wlan antenna

In this paper,a 2.42 ghz micro-strip patch antenna is designed and analyzed using a conventional and a metamaterial (artificial) based electromagnetic bandgap (ebg) ground planes. the directivity,return loss and vswr of the conventional 2.42 ghz patch antenna were found to be 5.23db,-13.2db,and 1.5 respectively. the proposed antenna then being mounted on a mushroom-type ebg structures (artificial ground plane) produced better far-field performance as compared to conventional counterpart i.e. the return loss,directivity and vswr were improved by 80.3%,58.5% and 24.6%. the wlan antenna was designed and tested on a miniaturized slotted ebg structure. the slotted ebg was 11.4 % compact as compared to the mushroom structure. the directivity,return loss and vswr of the antenna using the slotted ebg are improved by be 51%,31.8%,15.4% respectively as compared to the patch conventional wlan patch antenna. the antenna can be used for wlan applications. © 2016 penerbit utm press. all rights reserved.