Multi-band SIW antenna with modulated metasurface at 5G frequency

摘要

This paper proposes a multi-band SIW antenna which is linearly polarized. The antenna consists of a T-shaped radiator inscribed on the upper side of the dielectric substrate. This radiator is responsible for multi-band occurrence. The operating frequency is chosen to be 28 GHz, which is a valid selection for 5G applications. An aperiodic modulated metasurface is employed as the ground plane for the proposed antenna. Modulated MTS is a great alternative to the metal ground as it enhances the gain and subsequently the front to back lobe ratio (FTBR) of the antenna. The substrate used is FR4 epoxy with a thickness of 0.8 mm. The simulations are done using ANSYS HFSS. Only simulated results are presented as the antenna fabrication is under process.