Broadbeam cylindrical dielectric resonator antenna

Syeda H.H. Mashhadi, Yong Chang Jiao, Jingdong Chen

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

A novel widebeam aperture-coupled cylindrical dielectric resonator antenna is proposed, which consists of multi-layered cylindrical ceramic disks joined together to achieve the required height. The proposed antenna is fed by wide aperture slot, which, along with optimum dielectric resonator height, excites fundamental and high order hybrid modes inside the DR to achieve wide beamwidths in the two principal planes simultaneously. Then, a new frequency, which is called the limited frequency and denoted as fL, is defined. Based on fL, dimensions of the wide slot are determined. Finally, the antenna is manufactured and measured. Its operating frequency band ranges from 5.49 GHz to 7.2 GHz. The antenna yields broadbeam in the frequency band from 6.1 to 6.7 GHz and achieves a 3-dB beamwidth from 124 to 149 in the E-plane and from 112 to 126 in the H-plane.

Original languageEnglish
Article number8768290
Pages (from-to)112653-112661
Number of pages9
JournalIEEE Access
Volume7
DOIs
StatePublished - 2019

Keywords

  • Broadbeam dielectric resonator antennas
  • Cylindrical dielectric resonator antennas
  • Higher order hybrid modes

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