A Compact Dual-Band Directional Button Antenna Based on Metamaterial Lens for New Power Services
摘要
A compact dual-band directional button antenna is proposed for miniaturized equipment and tight space in integrated power communication networks. In this design, a metamaterial lens consisting of \(2\times 2\) cells is applied to the radiation direction, enabling a compact and directional configuration. The antenna consists of a microstrip line feed, a monopole loaded by the dielectrics, and a metamaterial lens placed on the other side of the feed. The metamaterial unit cell has two different split resonant rings responsible for two different resonances, and the \(2\times 2\) cells are employed to form the desired lens and are symmetrical on the monopole. The results show that the antenna with lens has the similar properties with that of the reflector metamaterial.