Abstract
ABSTRACTLossless planar multilayer periodic electromagnetic bandgap (EBG) structures of dielectric media, illuminated by an oblique electromagnetic plane wave and terminated in a surface impedance with an arbitrary number of multilayers in a unit cell, can be effectively analyzed using an equivalent transmission‐line (TL) model based on conjugately characteristic‐impedance TLs (CCITLs). In this article, both characteristic impedances with nonnegative characteristic resistances (NNCRs) and negative characteristic resistances (NCRs) associated with CCITLs are considered. It is found that the equivalent CCITL model yields accurate results, and can simplify the analysis of these EBG structures with some physical insight. In addition, Meta‐Smith charts (MSCs) can be employed to further simplify the analysis. It is found that MSCs can provide clearer data set than the standard Smith chart with accurate results, and the bilinear transformation can be effectively used to transform dataset between MSCs and the Smith chart. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2222–2228, 2013
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