Design and analysis of a wide angle impedance matching metasurface for wideband antenna arrays

Alpha O. Bah, Richard W Ziolkowski, Pei Yuan Qin, Y. Jay Guo

Research output: Contribution to conferencePaperpeer-review

Abstract

A wide bandwidth, low profile, double sided, wide angle impedance matching metasurface is reported. It alleviates the well-known problem of impedance mismatch caused by mutual coupling when an array is in its scan mode. Each unit cell of the metasurface contains two multi-resonant, tightly-coupled unequal arm Jerusalem cross elements on the top and bottom sides of a thin substrate. Each element consists of two orthogonal capacitively loaded strips. The wide bandwidth of the metasurface is achieved by tightly coupling these multi-resonant elements. The metasurface is capable of facilitating wide angle scanning over a 6:1 impedance bandwidth without the need for bulky dielectrics or multi-layered structures.

Original languageEnglish (US)
StatePublished - Jan 1 2018
Externally publishedYes
Event12th European Conference on Antennas and Propagation, EuCAP 2018 - London, United Kingdom
Duration: Apr 9 2018Apr 13 2018

Other

Other12th European Conference on Antennas and Propagation, EuCAP 2018
CountryUnited Kingdom
CityLondon
Period4/9/184/13/18

Keywords

  • Bandwidth
  • Metasurfaces
  • Phased arrays
  • Tightly coupled arrays
  • Wide angle impedance matching
  • Wide bandwidth arrays

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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