Low-profile Fabry-Pérot cavity antenna with metamaterial SRR cells for fifth generation systems

This manuscript deals with the design and performance validation of a compact Fabry-Pérot cavity (FPC) antenna for the fifth generation (5G) system applications. The configuration of the proposed design includes a primary coaxial-fed radiator backed with a full ground plane, an air cavity, and a partially reflecting surface (PRS) with a 4×4 array of split-ring resonator (SRR) cells. The antenna is designed on cheap FR-4 dielectrics to work at 17.25 GHz. The antenna performances in terms of directivity and bandwidth have been improved about 5 dBi and 0.75 GHz, respectively. The simulations show that the antenna provides a few attractive features such as high gain, low-cost, low profile, easy to fabricate, which makes the design suitable for 5G systems.