Aeu-international Journal of Electronics and Communications | 2019
Metamaterial Cell Inspired High Gain Multiband Antenna for Wireless Applications
Abstract
Abstract In this paper, a novel metamaterial inspired high gain dual band antenna has been designed. The unit cell is highly reflective, resonating at 5.9\u202fGHz and 9.9\u202fGHz with 3\u202fdB stopband characteristic from 2 to 4.5\u202fGHz. The unit cell structure has been characterized by deriving its equivalent circuit model in ADS, where the circuit simulation shows good matching with the full-wave analysis. The unit cell is placed at a height of 0.152λo above the patch antenna forming a resonant cavity which causes gain enhancement of 4\u202fdBi and 3.1\u202fdBi along with an increase in bandwidth of 90.63% and 179.63% respectively at the operating frequency of 5.7\u202fGHz and 10.3\u202fGHz. Furthermore, the prototype antenna has been fabricated and measured where the experimental results are in good agreement with the simulated responses.