Compact tri‐band metamaterial‐inspired antenna based on CRLH resonant structures

Abstract

A single‐cell tri‐band composite right/left‐handed (CRLH) resonant antenna is presented. The antenna is designed on a single‐layer coplanar waveguide‐fed based on the T‐junction discontinuity equivalent circuit. The proposed antenna provides compact size, easy fabrication process, multi‐band feature and higher efficiency in comparison with the previously reported CRLH resonant antennas. The single‐cell CRLH resonant antenna is fabricated and the measurements are consistent with the simulation result.