Dielectric Resonator Based MIMO Antenna System Enabling Millimeter-Wave Mobile Devices

Mohammad S. Sharawi, Symon K. Podilchak, Mohamed T. Hussain, Yahia M. M. Antar

Research output: Contribution to journalArticlepeer-review

111 Citations (Scopus)
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In this work a millimeter-wave (mm-wave) dielectric resonator (DR) based multiple-input-multiple-output (MIMO) antenna system based on two linear arrays is presented. Each array that represents a single MIMO antenna consists of four cylindrical DR antenna (cDRA) elements operating at 30~GHz with a bandwidth of at least 1 GHz. Each array is designed with a fixed beam direction which is tilted to provide low field correlation. A passive microstrip-based feed network was designed to achieve this beam tilting enabling suitable magnitude and phase excitation of the individual cDRAs for radiation. The complete antenna system was designed on a two-layer substrate occupying 48 mm by 21 mm. Excellent field correlation values were measured (below 0.002) across the band of operation while peak gains were greater than 7 dBi. High radiation efficiency is obtained. The proposed design approach for beam tilting, which enables MIMO operation, may also be useful for other compact implementations to support 5G communications.
Original languageEnglish
Pages (from-to)287-293
Number of pages7
JournalIET Microwaves, Antennas and Propagation
Issue number2
Publication statusPublished - 29 Jan 2017


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