Quarter cylindrical dielectric resonator antenna with circular polarisation for wideband MIMO systems | Zendy

Belazzoug M. | Zendy; Messaoudene I. | Zendy; Aidel S. | Zendy; Denidni T.A. | Zendy; Kishk A.A. | Zendy

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Quarter cylindrical dielectric resonator antenna with circular polarisation for wideband MIMO systems

Author(s) -

Belazzoug M.,

Messaoudene I.,

Aidel S.,

Denidni T.A.,

Kishk A.A.

Publication year - 2020

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

ISSN - 1350-911X

DOI - 10.1049/el.2019.3138

Subject(s) - wideband , axial ratio , optics , physics , dielectric resonator antenna , bandwidth (computing) , resonator , acoustics , circular polarization , electrical engineering , telecommunications , engineering , microstrip

In this Letter, a quarter cylindrical dielectric resonator antenna (Q‐CDRA) with a low profile and circular polarisation (CP) is presented for wideband and multiple‐input–multiple‐output (MIMO) systems. The approach used to obtain a reduced wideband CP antenna is realised by deforming the geometry of the CDR to a quarter cylinder and using a quasi‐spiral feedline to excite two resonant modes in phase quadrature (HEM 11 and HEM 12 ). The proposed design exhibits a wide‐impedance bandwidth (BW) of 34% (4.4–6.2 GHz) with a low measured coupling level<−15 dB, and an axial ratio BW of 24.4% (4.5–5.75 GHz). The antenna gain is stable through the operating BW with a gain peak of 6.4 dBi. In addition, the antenna has a low cross‐polarisation in the boresight direction with low envelope correlation coefficient<0.03. The presented design is suitable for RHCP WLAN applications.

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