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Dual band circularly polarized partially reflecting surface-loaded dielectric resonator-based MIMO antenna for mm-wave 5G applications

Published online by Cambridge University Press:  26 January 2024

Pawan Kumar Shukla ,
Sikandar ,
Vijay Shanker Tripathi  and
Anand Sharma Open the ORCID record for Anand Sharma [Opens in a new window]
Pawan Kumar Shukla
Affiliation:
Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
Sikandar
Affiliation:
Department of Electronics Engineering, Rajkiya Engineering College, Sonbhadra, India
Vijay Shanker Tripathi
Affiliation:
Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
Anand Sharma*
Affiliation:
Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
*
Corresponding author: Anand Sharma; Email: anandsharma@mnnit.ac.in
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Abstract

A two-port ceramic-based antenna loaded with partially reflecting surface (PRS) is structured and explored. Fan-shaped slot is utilized to create circularly polarized wave in both frequency ranges. Dual frequency ranges are due to hybrid mode creation inside the ceramic material, i.e. HEM11δ and HEM12δ modes. PRS is used to change the phase gradient, which in turn tilts the radiation beam (±35°) obtained from different port in opposite direction. This concept is useful to reduce the envelop correlation coefficient using far-field. Experimental verification confirms that the designed antenna works from 26.1 to 27.5 GHz and 31.7 to 33.6 GHz along with less than 3-dB axial ratio from 26.5 to 27.1 GHz and 31.9 to 33.1 GHz respectively. Orthogonal placement of ports introduces the concept of polarization diversity and decreases the coupling between ports by an amount of −25 dB. Good gain value (up to 7.0 dBi) and better value of diversity performance make the designed radiator applicable for 5 G millimeter-wave uses.

Keywords

circular polarizationdielectric resonator antennaMIMO antennamm-wave
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , First View , pp. 1 - 10
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Copyright
© The Author(s), 2024. Published by Cambridge University Press in association with the European Microwave Association

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