Wide dual-band circularly polarized diecletric resonator: innovative integration of a single hybrid feed and thin grounded metasurface

Arslan Kiyani, Mohsen Asadnia, Syed Muzahir Abbas*, Karu P. Esselle, Abdelhady Mahmoud*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
16 Downloads (Pure)

Abstract

This article presents an application of a grounded substrate-based metasurface for hosting dielectric resonators (DRs), enabling a wide dual-band circularly polarized (CP) operation. The antenna structure comprises centrally positioned rectangular DRs, one above the other, along with a 7 × 7 square-slotted metasurface. The metasurface and DRs are hosted above a grounded substrate, which is fed through a single coaxial feed placed at a specific angle, employing a modified upper probe of the coaxial feed. The proposed hybrid technique utilizes the combined benefits of the feed angle and a well-matched metasurface, resulting in performance improvement. Notably, a measured impedance bandwidth of 88.1% for |𝑆11|  is achieved within the frequency range of 4.0 GHz to 10.3 GHz. Furthermore, the antenna design exhibits two overlapping measured 3-dB axial ratio (AR) bandwidths: 23.62% from 4.25 GHz to 5.4 GHz and 5.12% from 7.6 GHz to 8 GHz. The peak gain of the antenna is measured at 8.4 dBic. Consequently, this innovative single-feed antenna design, characterized by its compact profile, holds significant potential for realizing multi-band operations. Furthermore, the developed antenna is well-suited for deployment in indoor radio links and INSAT applications.

Original languageEnglish
Article number1432
Pages (from-to)1-13
Number of pages13
JournalMicromachines
Volume14
Issue number7
DOIs
Publication statusPublished - Jul 2023

Bibliographical note

Copyright the Author(s) 2023. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • circularly polarized
  • dielectric resonator antenna
  • metasurface
  • metamaterial
  • single-feed
  • compact
  • wideband
  • dual-band

Fingerprint

Dive into the research topics of 'Wide dual-band circularly polarized diecletric resonator: innovative integration of a single hybrid feed and thin grounded metasurface'. Together they form a unique fingerprint.

Cite this