Hybrid Dielectric Resonator Antenna for Diversity Applications with Linear or Circular Polarization

Maksim Kuznetcov, Symon Podilchak, Michel Clénet, Yahia M. M. Antar

Research output: Contribution to journalArticlepeer-review

Abstract

This article presents a novel dielectric resonator antenna (DRA) with an 8-port feeding system offering gain and polarization diversity. The single-antenna unit is defined by a square arrangement of four aperture slots (ACSs), hybridized with the radiation of the dielectric resonator. Basically, an atypical feeding layout, realized by two microstrip transmission lines driving each of the four ACSs (thus requiring a total of 8 feed lines), allows for controlled excitation of the polarization. This resonator and feeder define the 8-port DRA, which, can offer linear polarization (LP), right-handed circular polarization (RHCP) or left-handed circular polarization (LHCP). Reflection coefficient and coupling values for different port excitation scenarios are also investigated for each polarization state of the L-band antenna. The maximum gain is about 5 dBic for LHCP or RCHP and 5 dBi when considering LP radiation. Such agility can be useful for the Global Navigation Satellite System (GNSS), for example, and other RF challenged environments where the dominant polarization is not known apriori. Other applications include duplex systems, wireless communications, and other phased arrays where gain or polarization diversity is of interest.
Original languageEnglish
Pages (from-to) 1 - 1
JournalIEEE Transactions on Antennas and Propagation
Early online date24 Feb 2021
DOIs
Publication statusE-pub ahead of print - 24 Feb 2021

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