A Wideband Hybrid-Mode Antenna for Sub-6 GHz Communication

This paper introduces a wideband hybrid-mode antenna, which meets the new requirements of micro base station antennas. This prototype includes a feeding dipole to excite the H-slotted rectangular patch for a higher impedance performance, as well as a ground plane for the performance of unidirectional radiation. Slot mode, dipole mode, and patch mode, are sequentially excited for the wideband performance. The size of the demonstrated antenna is 0.31λ
0
× 0.30λ
0
× 0.14λ
0
(λ
0
is the wavelength at the center of operating frequency in the free space). The simulated impedance bandwidth is from 2.90 GHz to 5.58 GHz, which is up to 63.21% with a steady gain of about 8.98 dBi. The introduced wideband antenna can function as an element for a micro or macro base station in Sub-6 GHz communications.