Design of Uniplanar Compact Electromagnetic Band Gap (UC-EBG) for
Massive MIMO 5G C-Band Antenna
Abstract
This study aims to reduce the mutual coupling and envelope correlation
coefficient (ECC) parameters of massive MIMO antennas. This parameter is
important to support the performance of MIMO antennas in increasing
high-speed data transmission. The observation of this study was carried
out at the C-Band 3.5 GHz frequency as one of the 5G frequency bands
under 6 GHz. The study used a massive MIMO 64 element antenna design
with the addition of a specially designed Uni-planar Compact EBG
(UC-EBG) surrounding the antenna element. Simulation and measurement
results are compared with conventional MIMO antenna performance (without
UC-EBG). Simulation results and antenna measurements show that the
addition of the UC-EBG structure has succeeded in reducing the mutual
coupling by 1.23 dB and improve the ECC parameter by 0.61. In addition,
the UC-EBG structure can improve the performance of return loss and
massive MIMO antenna VSWR