Study of electric circuit models of bidimensional electromagnetic band-gap metamaterials based on the Yang cell

Abstract

Metamaterials in microwave frequency bands have been widely explored in the development and design of antenna structures and arrays. In this paper, the so-called Yang cell have been studied. When these cells are periodically arranged on a plane, the resulting metamaterial structure shows lower band-gap frequencies than structures composed of other unit cells of the same size. The electric and magnetic fields in the first two modes of electromagnetic propagation in the unit cell have been studied. Four equivalent circuit models of the unit cell have been developed in order to easily and quickly obtain the frequency response of the metamaterial structure. These models are explained in this paper, and were validated using full-wave computational electromagnetic methods.

Keywords

• metamaterial
• ebg
• celda unitaria
• circuito eléctrico
• diagrama de dispersión
• microcinta