Equivalent admittance approach for the scattering of patch/slot-based frequency selective surfaces

F. Mesa (1) , R. Rodríguez-Berral (1) , M. García-Vigueras (2) , F. Medina (1) , J.R. Mosig (3)

1 Universidad de Sevilla / University of Sevilla
2 IETR - Institut d'Électronique et des Technologies du numéRique
3 EPFL - Ecole Polytechnique Fédérale de Lausanne

The equivalent admittance of a 2-D array of printed metallic patches/apertures is obtained here by extending a precedent equivalent circuit approach reported by some of the authors. The goal of the present extension is to cover more complex situations like multi-resonant scatterers, several scatterers per unit cell, and conical incidence. After studying the limits of validity of the equivalent circuit approach, it is found that this quasi closed-form approach is a very efficient numerical tool which also provides a very convenient physical insight into the involved electromagnetic phenomena. © 2016 IEEE.

Keywords: Frequency selective surfaces; Numerical methods; Numerical models; Reconfigurable hardware; Circuit modeling; Closed form; Electromagnetic phenomena; Equivalent admittance approach; Equivalent admittances; Metallic patches; Numerical tools; Resonant scatterers; Equivalent circuits

Domains: Engineering Sciences [physics]; Electronics; Computer Science [cs]; Networking and Internet Architecture [cs.NI]

F. Mesa, R. Rodríguez-Berral, M. García-Vigueras, F. Medina, J.R. Mosig. Equivalent admittance approach for the scattering of patch/slot-based frequency selective surfaces. 2016 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization, NEMO 2016, Jul 2016, Beijing, China. pp.7561580, ⟨10.1109/NEMO.2016.7561580⟩. ⟨hal-01380638⟩