Low Profile Triple Band Metasurface Based ME-Dipole Antenna

A triple band, low profile, metasurface based ME-dipole antenna is proposed in this work. The composite antenna structure has one ME-dipole antenna topped by a suitable dual-band metasurface, which resulted in triple band response. The electric dipole was constructed by employing four quasi-square patches and fed with an L-probe. The magnetic dipole was obtained by introducing four sets of closely spaced via holes located at the inner corners of the quasi-square patches. The metasurface has two concentric split squares as unit cell. The three bands were reported at 11.3-12.51GHz, 13.78-14.3GHz and 16.11-17.88GHz, with fractional bandwidths of 20%, 7.42% and 21.85% respectively, with a peak gain of 7.57dBi. The profile of the antenna was found to be only 0.04λ
0
.