Miniaturized dual-band antenna array with double-negative (DNG) metamaterial for wireless applications

TitleMiniaturized dual-band antenna array with double-negative (DNG) metamaterial for wireless applications
Publication TypeJournal Article
Year of Publication2017
AuthorsA. S. M. Alqadami, M. F. Jamlos, P. J. Soh, S. K. A. Rahim, G. Vandenbosch, and A. Narbudowicz
Journal TitleApplied Physics A
Volume123
Journal Date01/2017
Abstract

A miniaturized dual-band antenna array using a negative index metamaterial is presented for WiMAX, LTE, and WLAN applications. This left-handed metamaterial plane is located behind the antenna array, and its unit cell is a combination of split-ring resonator, square electric ring resonator, and rectangular electrical coupled resonator. This enables the achievement of a metamaterial structure exhibiting both negative permittivity and permeability, which results in antenna size miniaturization, efficiency, and gain enhancement. Moreover, the proposed metamaterial antenna has realized dual-band operating frequencies compared to a single frequency for normal antenna. The measured reflection coefficient (S11) shows a 50.25% bandwidth in the lower band (from 2.119 to 3.058 GHz) and 4.27% in the upper band (from 5.058 to 5.276 GHz). Radiation efficiency obtained in the lower and upper band are >95 and 80%, respectively.

URLhttp://link.springer.com/article/10.1007/s00339-016-0678-3