Integrate Fabry–Perot Resonator into Dielectric Resonator Antenna for Microwave and Mm-wave Operations

In this paper, a design of a dual-band cylinder dielectric resonator antenna (CDRA) along with a Fabry-Perot resonator antenna (FPRA) for both sub-6 GHz and mm-wave 5G applications is presented. The proposed antenna generates two different operating resonances. The (FPRA) is realized by sticking the adhesive copper tape on the surfaces of the elliptical groove in the (DR), forming a pair of parallel plates and the ground plane. The FPRA is excited by an L-probe, which widens the bandwidth of the FPRA. At the same time, the CDR exited by a vertical conducting strip on its sidewall. The first resonance results from the CDR at 2.45 GHz with a realized gain of 6.7 dBi. On the other hand, the FPRA resonates at 28 GHz, achieving a realized gain of 11.9 dBi.