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International audienceThis paper introduces the design and simulation of multiband dielectric resonator antenna (DRA) for the fifth generation (5G) of cellular networks. The radiating element is a unique rectangular shaped DRA element with a distribution feeding technique based on micro-strip feed line coupled via an elliptical slot. The feed position and configuration has been deliberately designed for optimized matching. The structure is approximately 40mm×48mm in size, conceived on Arlan dielectric substrate. The antenna has been optimized for the 10.5-17 GHz frequency bands. Simulated return loss, radiation pattern and gain over the frequencies of interest have been presented. The proposed antenna structure is a good candidate for future 5G cellular applications

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International audienceA novel wideband rectangular dielectric resonator antenna (RDRA) is proposed in this paper. An equivalent air-dielectric DRs blocs are introduced inside the resonator to enhance the structure's bandwidth. The hybrid structure is excited by a simple Microstrip feed line, adapted with a stub at the end of the line. The resonant modes of the isolated DR and the air-dielectric DRs, are merged together to form a wideband impedance bandwidth. Through this paper, it is demonstrated that the bandwidth of a simple rectangular DR antenna can be greatly enhanced by air-dielectric DRs. A detailed parametric study is carried out to analyze the characteristics of the proposed antenna. Simulation results show that the proposed RDRA has a 10 dB impedance bandwidth of 365 MHz, from 1.78GHz to 2.15GHz and the radiation pattern is quasi-stable over the operating range of frequencies