Characteristics on left-handed ferrite waveguide

Author

Okubo, Kensuke ; Tsutsumi, Makoto

Author_Institution

Okayama Prefectural Univ., Soja, Japan

fYear

2010

fDate

7-10 Dec. 2010

Firstpage

1521

Lastpage

1524

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;

fLanguage

English

Publisher

ieee

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

Type

conf

Filename

5728173