An Ultra-Wideband Rectangular Dielectric Resonator Antenna With MIMO Configuration

Mohammad Muzammil Sani; Rakesh Chowdhury; Raghvendra Kumar Chaudhary

doi:10.1109/ACCESS.2020.3012793

IEEE Access (Jan 2020)

An Ultra-Wideband Rectangular Dielectric Resonator Antenna With MIMO Configuration

Mohammad Muzammil Sani,
Rakesh Chowdhury,
Raghvendra Kumar Chaudhary

Affiliations

Mohammad Muzammil Sani: ORCiD; Department of Electronics Engineering, IIT (Indian School of Mines), Dhanbad, India
Rakesh Chowdhury: ORCiD; Department of Electronics Engineering, IIT (Indian School of Mines), Dhanbad, India
Raghvendra Kumar Chaudhary: ORCiD; Department of Electronics Engineering, IIT (Indian School of Mines), Dhanbad, India

DOI: https://doi.org/10.1109/ACCESS.2020.3012793
Journal volume & issue: Vol. 8
pp. 139658 – 139669

Abstract

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A Coplanar waveguide (CPW) fed multi-permittivity and stair shaped dual rectangular dielectric resonator antenna (RDRA) has been designed for ultra-wideband (UWB) applications in multipleinput multiple-output (MIMO) configuration. Isolation improvement has been obtained by means of modified CPW feeding and a metallic diagonal stub in the proposed structure. The simulated results have been validated by prototype designing and performing measurements. The electrical size of the proposed antenna configuration is 1.12λ0 × 1.12λ0 × 0.25λ0. The measured input impedance bandwidth of the antenna is 153.6% (1.6-12.2 GHz) with a minimum of 25 dB isolation between the radiators in the operating band. Measured results illustrate the satisfactory performance of proposed UWB MIMO antenna with a low envelope correlation coefficient and low mutual coupling throughout the desired frequency range.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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