Multi-band meta-material antenna with asymmetric coplanar strip-fed structure

This paper presents design of multi-band asymmetric coplanar strip-fed metamaterial antenna. The proposed antenna exhibits three resonances at 5 GHz, 5.8 GHz and 6.3 GHz. The proposed antenna is designed using one left handed unit cell. Thanks to the asymmetric configuration, the introduced antenna has the advantage of compactness (its size is only 13.5×26.5 mm²). The design represents size reduction which can be considered better than 50% compared to conventional patch antennas operating at the same frequency. Details of the antenna design, simulation, and experimental results are presented and discussed. The proposed antenna demonstrates nearly omnidirectional radiation characteristics. The simulation results agree well with the measured results. The proposed configuration can be applied for much smaller size system applications.