Compact wideband circularly polarised dielectric resonator antenna

M. Abedian, S. K A Rahim, S. Danesh, M. H. Jamaluddin, Mohammad Tariqul Islam

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A new geometry of compact wideband/dual-band circularly polarised dielectric resonator antenna (DRA) is presented. First, a wideband DRA is realised by a rectangular dielectric resonator excited by a vertical coaxial probe feed which is supported by a small substrate. Circular polarisation is achieved by utilising a configuration of the DRA feed that excites orthogonal modes inside the DRA. A 3 dB axial-ratio bandwidth of about 20.8% (9.05-11.14 GHz) is achieved. Second, extension to dual-band circularly polarised operation is then realised by additionally removing a corner of the rectangular DRA at 45° and adding a floating parasitic strip. The experimental results demonstrate an impedance bandwidth of about 59.8% (6.57-12.18 GHz) and the dual 3 dB axial-ratio bandwidths of about 10.6% (8.31-9.24 GHz) and 13.5% (10.18-11.66 GHz). The measured peak gain varies from 4.47 to 4.86 dBiC in the lower band and 4.33 to 4.91 dBiC in the upper band.

Original languageEnglish
Pages (from-to)5-6
Number of pages2
JournalElectronics Letters
Volume53
Issue number1
DOIs
Publication statusPublished - 5 Jan 2017

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Dielectric resonators
Antennas
Bandwidth
Circular polarization
Antenna feeders
Geometry
Substrates

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Compact wideband circularly polarised dielectric resonator antenna. / Abedian, M.; Rahim, S. K A; Danesh, S.; Jamaluddin, M. H.; Islam, Mohammad Tariqul.

In: Electronics Letters, Vol. 53, No. 1, 05.01.2017, p. 5-6.

Research output: Contribution to journalArticle

Abedian, M. ; Rahim, S. K A ; Danesh, S. ; Jamaluddin, M. H. ; Islam, Mohammad Tariqul. / Compact wideband circularly polarised dielectric resonator antenna. In: Electronics Letters. 2017 ; Vol. 53, No. 1. pp. 5-6.
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