Simple Matching Technique using Finite Metasurface to Control Surface Waves

Maksim Kuznetcov, Victoria Gomez-Guillamon Buendia, Khalid Alrushud, Symon K. Podilchak

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This article presents a simple matching technique to control surface waves (SWs) by using a finite metasurface matching section. The approach is based on a sub-wavelength array of patches which are employed as a simple and effective approach to control and guide SWs on a grounded dielectric slab (GDS). In order to excite the fundamental TM0SW mode, a horn-shape surface-wave launcher (SWL) in substrate integrated waveguide (SIW) technology was employed. The structure and the matching metasurface are modeled with an equivalent circuit. By using this matching section, the reflection and transmission coefficients are improved from-6 dB to-12 dB and from-9 dB to-3.5 dB at 23.7 GHz, respectively. In addition, thanks to the finite metasurface region, the generated TM0SW presents a uniform phase front allowing for efficient feeding of other antenna or passive elements implemented on the GDS. Measurements of a demonstrator prototype are also in agreement with full-wave simulations. This technique for SW control can be used in other microwave and millimeter-wave devices, for example, to reduce unwanted leakage, to route guided-waves, and feed leaky-wave antennas as well as other SW driven structures.

Original languageEnglish
Title of host publication16th European Conference on Antennas and Propagation (EuCAP 2022)
ISBN (Electronic)9788831299046
Publication statusPublished - 11 May 2022
Event16th European Conference on Antennas and Propagation 2022 - Madrid, Spain
Duration: 27 Mar 20221 Apr 2022


Conference16th European Conference on Antennas and Propagation 2022
Abbreviated titleEuCAP 2022


  • Metasurface
  • Surface-wave Launchers (SWL)
  • Surface-waves (SW)

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Radiation


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