Title :
Characteristics on left-handed ferrite waveguide
Author :
Okubo, Kensuke ; Tsutsumi, Makoto
Author_Institution :
Okayama Prefectural Univ., Soja, Japan
Abstract :
This paper treats filter characteristics of periodic structure in the ferrite waveguide under cutoff which include left-handed operation, resonance in the evanescent mode and mode concerned with Bragg reflection. Equivalent circuit model and simulation are used to get dispersion characteristics and scattering parameters. Left-handed characteristics at negative permeability region are discussed with backward wave phenomenon, which were confirmed with experiments using single crystal of yttrium iron garnet ferrite. Good microwave filter and phase shifter responses are observed.
Keywords :
equivalent circuits; ferrite waveguides; garnets; iron compounds; permeability; yttrium compounds; Bragg reflection; Y-Fe-JkSiO2-Fe2O3; backward wave phenomenon; equivalent circuit model; evanescent mode; left-handed characteristics; left-handed ferrite waveguide; left-handed operation; microwave filter; negative permeability region; periodic structure; phase shifter response; scattering parameters; yttrium iron garnet ferrite single crystal; Dielectrics; Electromagnetic waveguides; Ferrites; Filtering theory; Magnetic separation; Microwave filters; Scattering parameters; Left-handed circuit; ferrite filter; ferrite phase shifter; periodic structure;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2010 Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-7590-2
Electronic_ISBN :
978-1-902339-22-2
