Tensor surface impedance modelling of metasurfaces with printed elements

Reuven Shavit, Yarden Tzabari

Research output: Contribution to journalArticlepeer-review


Two methods for extraction of the effective tensor surface impedance representing metasurfaces with printed elements and arbitrary geometry are presented. The surface impedance can be modelled as a shunt admittance on a transmission line. The extracted surface impedance combined with transmission line theory enables to compute easily and efficiently the transmission coefficient through a multilayer metasurface structure. The metasurface modelling as a shunt admittance enables to conduct a multi-parameter study on the transmission and reflection performance through the metasurface structure. The results of the proposed methods are compared, and very good agreement was obtained up to 30° incident angle. Beyond 30° it is suggested to recalibrate the model or upgrade it. For model validation purposes, a 2D flat lens antenna with patch elements loaded with capacitors was designed, fabricated, and measured. Simulation and experimental results of the lens near and far-field are presented.

Original languageEnglish
Pages (from-to)807-817
Number of pages11
JournalIET Microwaves, Antennas and Propagation
Issue number10
StatePublished - 1 Aug 2023


  • lenses
  • metamaterial antennas
  • metamaterials
  • microstrip antennas

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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