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Dielectric resonator-based two-port filtennas with pattern and space diversity for 5G IoT applications

Published online by Cambridge University Press:  07 February 2022

Darshika Sharma ,
Rishika Katiyar ,
Ajay Kumar Dwivedi Open the ORCID record for Ajay Kumar Dwivedi [Opens in a new window] ,
K.N. Nagesh Open the ORCID record for K.N. Nagesh [Opens in a new window] ,
Anand Sharma Open the ORCID record for Anand Sharma [Opens in a new window]  and
Pinku Ranjan Open the ORCID record for Pinku Ranjan [Opens in a new window]
Darshika Sharma
Affiliation:
Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, Uttar Pradesh, India
Rishika Katiyar
Affiliation:
Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, Uttar Pradesh, India
Ajay Kumar Dwivedi
Affiliation:
Department of Electronics & Communication Engineering, Nagarjuna College of Engineering & Technology, Bengaluru, India
K.N. Nagesh
Affiliation:
Department of Electronics & Communication Engineering, Nagarjuna College of Engineering & Technology, Bengaluru, India
Anand Sharma*
Affiliation:
Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, Uttar Pradesh, India
Pinku Ranjan
Affiliation:
Department of Electronics and Communication Engineering, Atal Bihari Vajpayee-Indian Institute of Information Technology and Management, Gwalior, India
*
Author for correspondence: Anand Sharma, E-mail: anandsharma@mnnit.ac.in
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Abstract

This paper describes a multiple-input multiple-output (MIMO) antenna for low millimeter (mm)-wave applications based on dielectric resonators. This is the first time that a filtering response is used in conjunction with an MIMO antenna operating at a low mm-wave frequency. The antenna is simulated using an asymmetrical U-shaped aperture and a microstrip line feed. The suggested filtenna has two distinguishing characteristics: (i) the diversity parameters of the proposed MIMO are increased by including pattern and spatial diversity, and (ii) the proposed feed mechanism of a dielectric resonator provides the filtering response. Between the two ports, a metallic plate tilts the radiation pattern by 45°. The anti-parallel locations of the ports increase the isolation value by >30 dB. To validate the performance of the suggested antenna, the proposed filtenna was built and confirmed. The proposed antenna operates between the frequencies 27.9 and 28.5 GHz. Within the operating frequency range, the observed gain is ~4.5 dBi. On the contrary, the gain suppression level beyond the operational frequency range is ~15 dB. The stable radiation properties and high diversity parameter values of the suggested filtenna make it an effective solution for 5G Internet of Things sensing applications.

Keywords

5G communicationdielectric resonator antennafiltering responseMIMO antenna
Type
Antenna Design, Modeling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 15 , Issue 2 , March 2023 , pp. 263 - 270
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Copyright
Copyright © The Author(s), 2022. Published by Cambridge University Press in association with the European Microwave Association

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