An Ultra-Wideband Rectangular Dielectric Resonator Antenna With MIMO Configuration

Autor: Mohammad Muzammil Sani, Rakesh Chowdhury, Raghvendra Kumar Chaudhary
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: IEEE Access, Vol 8, Pp 139658-139669 (2020)
Druh dokumentu: article
ISSN: 2169-3536
DOI: 10.1109/ACCESS.2020.3012793
Popis: 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.
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