Mm-Wave dielectric resonator antenna (DRA) with wide bandwidth for the future wireless networks

Abstract

This paper represents the design of a compact dielectric resonator antenna (DRA) for the future fifth generation (5G) applications. The antenna consists of a cylindrical-ring dielectric resonator (DR) mounted on a low-cost FR-4 surface, and a full ground plane. The antenna is fed by a coaxial probe with its inner conductor located adjacent to the DR. The antenna has good performance in terms of input-matching, gain and efficiency characteristics. The variation of the antenna properties in terms of gain and efficiency are less than 2 and −0.5 dB across its impedance pass-band (20 to 35 GHz for S11<−10 dB). Using the proposed DRA design, the radiation characteristics of 2×2, 4×4, and 8×8 planar arrays are investigated. In addition, the fundamental properties of the 1×8 linear array have been discussed. Simulations have been done to validate the feasibility of the proposed DRA for the future 5G wireless networks.