Filtering two-element waveguide antenna array based on solely resonators

Research output: Contribution to journalArticle

Authors

  • Rashad H. Mahmud
  • Halgurd N. Awl
  • Yadgar I. Abdulkarim
  • Muharrem Karaaslan
  • Mike Lancaster

Colleges, School and Institutes

Abstract

This paper presents a design approach of a filtering antenna arrays based on the coupling matrix theory. The approach generates filtering functionality using the resonating array radiating elements and the resonator based feed network regardless to the physical structure. To implement the approach, a novel topology for a two-element array is presented, here three rectangular waveguide cavity resonators have been employed to form the filtering array. The array has a fractional bandwidth of 10% at the centre frequency 10 GHz with a reflection coefficient magnitude within the passband of 20 dB. The realised gain over the passband is 9.8 ± 0.4 dBi. The array has been fabricated and the measurements are in very good agreement with the simulations, validating the approach.

Details

Original languageEnglish
Article number153232
JournalAEU - International Journal of Electronics and Communications
Volume121
Early online date30 Apr 2020
Publication statusPublished - Jul 2020

Keywords

  • Filtering antenna array, Waveguide resonators, Antenna array, Coupling matrix