Article

A Novel Design of Radiation Pattern-Reconfigurable Antenna System for Millimeter-Wave 5G Applications

Nov 06, 2019

DOI: 10.1109/TAP.2019.2952607

Published in: IEEE Transactions on Antennas and Propagation

Publisher: IEEE

/ Ismail Ben Mabrouk / muath alhasan Mourad Nedil Tayeb Denidni Abdel Sebak

In this paper, a novel design of dielectric resonator antenna (DRA) with a reconfigurable radiation pattern capability is presented. Reconfigurability in the azimuth plane is achieved by symmetrically placing six electromagnetic bandgap (EBG) sectors around the DRA. Each sector is composed of twenty-six circular shaped mushroom-like EBG unit cell. In order to achieve 360 degrees pattern reconfigurability with a minimum number of diodes, a network of metallic veins printed on a conductor-backed dielectric slab is used to group and connect the vias in each EBG sector. In addition, a switching PIN diode is integrated to the circuit to control the beam steering in the entire azimuth plane towards the respective desired sector by turning On and Off the diode. 60 GHz DRA prototype incorporating the EBG switching circuit is fabricated and tested. Results show 360 degrees pattern reconfigurability in the azimuth plane, with a realized gain of 4.2 dBi, and less than -16 dB impedance matching level over the desired bandwidth are achieved

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