Wideband Circular Polarized Dielectric Resonator Antenna Array for Millimeter-Wave Applications

A novel circular polarized dielectric antenna array (DRA) for millimeter-wave applications at 30 GHz is presented in this paper. The unit element array is a flower-shaped DRA fed with a cross slot. To obtain circular polarization, a sequential network combined with the cross slots is used to feed th...

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Published inSensors (Basel, Switzerland) Vol. 21; no. 11; p. 3614
Main Authors Kesavan, Arun, Al-Hassan, Mu’ath, Ben Mabrouk, Ismail, Denidni, Tayeb A.
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 22.05.2021
MDPI
Subjects
Antenna arrays
Antennas
array antenna
Arrays
Bandwidths
Broadband
Circular polarization
Communication
Design
Dielectrics
DRA
Frequencies
Geometry
Millimeter waves
millimeter-wave
Radiation
Radio antennas
Resonators
Wireless communications
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Summary:A novel circular polarized dielectric antenna array (DRA) for millimeter-wave applications at 30 GHz is presented in this paper. The unit element array is a flower-shaped DRA fed with a cross slot. To obtain circular polarization, a sequential network combined with the cross slots is used to feed the 2×2 array. The prototype of the proposed antenna array is fabricated and measured to obtain a wide resonance bandwidth from 27 GHz to 38 GHz frequency band. Furthermore, this left-hand polarized antenna array has achieved a peak gain of 9.5 dBi with 3-dB axial ratio at 30 GHz. The proposed DRA array with wideband resonance and gain bandwidth has the potential to be used for millimeter-wave wireless communications at the 30 GHz band.
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Current address: Institut National de la Recherche Scientifique, Québec, QC G1K 9A9, Canada.
This work is an extension version of the conference paper: Kesavan, A.; Denidni, T.A. Supershaped Wideband Dielectric Resonator Antenna Array for Millimeter—Wave Applications. In Proceedings of the 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, Montreal, QC, Canada, 5–10 July 2020; pp. 415–416.
ISSN:1424-8220
1424-8220
DOI:10.3390/s21113614