Compact and tunable ACS-Fed monopole antenna

This paper presents design of compact tunable dual band asymmetric coplanar strip -fed monopole antenna based on graphene sheet. The proposed antenna is consisted of ACS-fed folded monopole antenna with inverted two L branches which achieve very compact size. The proposed antenna is operated at 2.4 GHz and 5.8 GHz which is used for wireless applications. The graphene sheet is used to achieve the desired tunability. The resonance frequency of the antenna can be electrically tuned by applying DC voltage to the graphene sheet which changes chemical potential of this sheet. The Details of the antenna design and simulation results are presented and discussed. The proposed antenna shows nearly omnidirectional radiation characteristics.