Title :
Lumped Circuit Models for Degenerate Band Edge and Magnetic Photonic Crystals
Author :
Mumcu, Gokhan ; Sertel, Kubilay ; Volakis, John L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
Multiport circuit models are presented to emulate a new class of periodic anisotropic crystals exhibiting dispersion diagrams with degenerate band edges or stationary inflection points (SIPs). Specifically, a 4-port lumped circuit is introduced to model a partially coupled pair of microstrip lines known to emulate propagation in an anisotropic medium. A 6-port circuit is also presented to model three partially coupled transmission lines. Under specific coupling conditions, the latter circuit can support the SIP associated with the K-?? curves of magnetic photonic crystals.
Keywords :
anisotropic media; coupled transmission lines; lumped parameter networks; microstrip circuits; microstrip lines; multiport networks; photonic crystals; 4-port lumped circuit; 6-port circuit; degenerate band edge; magnetic photonic crystals; microstrip lines; multiport circuit models; periodic anisotropic crystals; stationary inflection points; three-partially-coupled transmission lines; Anisotropic media; degenerate band edge; equivalent circuit model; magnetic photonic crystals; stationary inflection point; transmission line model;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2009.2035943
