A tunable hexaferrite dielectric resonator for W-band devices

Author

Popov, M.A. ; Zavislyak, I.V. ; Srinivasan, G.

Author_Institution

Nat. Taras Shevchenko Univ. of Kyiv, Kiev, Ukraine

fYear

2010

fDate

13-17 Sept. 2010

Firstpage

748

Lastpage

749

Abstract

Magnetic field tuning characteristics of a single-crystal barium hexaferrite dielectric resonator in the frequency range 75-110 GHz are reported. The dielectric resonances occur at a much higher frequency than the ferromagnetic resonance. It is shown that the degeneracy in the dielectric mode is lifted with an applied magnetic field H and that the modes can be tuned by 10 GHz or more with H. The dielectric modes are of importance for the realization of low-loss devices, including resonators, isolators and phase shifters.

Keywords

barium compounds; dielectric resonance; dielectric resonators; ferrite devices; ferrites; ferromagnetic resonance; magnetic millimetre wave devices; BaFe₁₂O₁₉; W-band devices; applied magnetic field; dielectric mode degeneracy; dielectric resonances; ferromagnetic resonance; frequency 75 GHz to 110 GHz; isolators; low-loss devices; magnetic field tuning; phase shifters; resonators; single-crystal barium hexaferrite dielectric resonator; tunable dielectric resonator; Dielectrics; Magnetic field measurement; Magnetic fields; Magnetic resonance; Saturation magnetization; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Telecommunication Technology (CriMiCo), 2010 20th International Crimean Conference

Conference_Location

Sevastopol

Print_ISBN

978-1-4244-7184-3

Type

conf

DOI

10.1109/CRMICO.2010.5632528

Filename

5632528