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A Novel Design and Development of a Strip-Fed Circularly Polarized Rectangular Dielectric Resonator Antenna for 5G NR Sub-6 GHz Band Applications

Illahi U 1 , Iqbal J 1 , Irfan M 2 , Ismail Sulaiman M 3 , Khan MA 4 , Rauf A 5 Show all authors , Bari I 6 , Abdullah M 7 , Muhammad F 8 , Nowakowski G 9 , Glowacz A 10

Affiliations 

  • 1 Electrical Engineering Department, FET, Gomal University, Dera Ismail Khan 29050, KP, Pakistan
  • 2 Electrical Engineering Department, College of Engineering, Najran University, Najran 61441, Saudi Arabia
  • 3 Advanced Telecommunication Technology, Communication Technology Section, British Malaysian Institute, Universiti Kuala Lumpur, Gombak 53100, Selangor, Malaysia
  • 4 Department of Electrical Engineering, Balochistan University of Information Technology, Engineering and Management Sciences, Quetta 87300, Pakistan
  • 5 Department of Electrical Engineering, National University of Sciences and Technology, H-12, Islamabad 44000, Pakistan
  • 6 Systems Engineering Department, Military Technological College, Muscat 111, Oman
  • 7 School of Aeronautical and Electrical Engineering, College of Aeronautical Engineering, National University of Science and Information Technology, Risalpur 24080, Pakistan
  • 8 Electrical Engineering Department, University of Engineering and Technology, Mardan 23200, Pakistan
  • 9 Faculty of Electrical and Computer Engineering, Cracow University of Technology, Warszawska 24 Str., 31-155 Kraków, Poland
  • 10 Department of Automatic Control and Robotics, Faculty of Electrical Engineering, Automatics, Computer 22 Science and Biomedical Engineering, AGH University of Science and Technology, A. Mickiewicza 30, 23-059 Kraków, Poland
Sensors (Basel), 2022 Jul 25;22(15).
PMID: 35898037 DOI: 10.3390/s22155531

Abstract

In this article, a rectangular dielectric resonator antenna (RDRA) with circularly polarized (CP) response is presented for 5G NR (New Radio) Sub-6 GHz band applications. A uniquely shaped conformal metal feeding strip is proposed to excite the RDRA in higher-order mode for high gain utilization. By using the proposed feeding mechanism, the degenerate mode pair of the first higher-order, i.e., TEδ13x at 4.13 GHz and TE1δ3y, at 4.52 GHz is excited to achieve a circularly polarized response. A circular polarization over a bandwidth of ~10%, in conjunction with a wide impedance matching over a bandwidth of ~17%, were attained by the antenna. The CP antenna proposed offers a useful gain of ~6.2 dBic. The achieved CP bandwidth of the RDRA is good enough to cover the targeted 5G NR bands around 4.4−4.8 GHz, such as n79. The proposed antenna configuration is modelled and optimized using computer simulation technology (CST). A prototype was built to confirm (validate) the performance estimated through simulation. A good agreement was observed between simulated and measured results.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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