High-gain and wide-bandwidth filtering planar antenna array-based solely on resonators

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Colleges, School and Institutes

External organisations

  • Salahaddin University-Erbil
  • School of Electronics


This paper presents a new approach for the design of high-gain and wide-bandwidth planar antenna arrays. It is based on the coupling matrix theory which allows the design of the arrays using all-resonator structures. The parameters of the matrix offer the flexibility of achieving a controllable bandwidth. They also introduce a frequency filtering functionality into the arrays which can remove the need to place a bandpass filter after the arrays at the very front end of a communication system. The new approach has been applied to using novel topologies to form two wideband 4 × 4 planar antenna arrays utilizing rectangular waveguide cavity resonators operated at X-band frequencies. The first topology is seventh order and based on 39 resonators configured in two waveguide-layers; that is one layer for the feed resonators and one layer for the radiating resonators. The second topology is fourth order based on 25 resonators configured only in a single waveguide-layer. Fabrication and measurements have been performed, showing very good agreement with the simulations.


Original languageEnglish
Article number7880637
Pages (from-to)2367-2375
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Issue number5
Publication statusPublished - 1 May 2017


  • Bandpass filter (BPF), coupling matrix theory, filtering planar antenna arrays, high-gain and wide-bandwidth planar antenna array