Abstract:
In this work, a novel wideband compact and lowprofile
metamaterial-based antenna has been proposed. The
introduction of metasurface layer between the patch and
ground plane improves antenna’s performance, considerably.
Our proposed circularly polarized (CP) antenna has been
realized by two pairs of radiators. The CP characteristics have
been obtained by placing two radiators in X-polarized wave
and two in Y-polarized wave. Each radiator is carefully
designed with epsilon negative transmission line (ENG-TL) to
generate zeroth-order resonance (ZOR). Our proposed
antenna achieves a gain of 4.94 dBic, which is almost 0.58 dBic
higher than the structure without metasurface. Also, the
operating bandwidth and the simulated axial ratio bandwidth
(ARBW) of our proposed antenna improve to 698.6 MHz and
450.3 MHz.
