Self-biased millimeter wave notch filter based on single crystal hexaferrite resonator with regular domain structure for 45–57 GHz region

Author

Sorochak, A.M. ; Kostenko, V.I. ; Chevnyuk, L.V. ; Chamor, T.G.

Author_Institution

Fac. of Radiophys., Kyiv Nat. Taras Shevchenko Univ., Kyiv, Ukraine

fYear

2013

fDate

23-28 June 2013

Firstpage

277

Lastpage

279

Abstract

Self-biased millimeter wave (mm-wave) notch filter consists of a resonator based on single crystal barium hexaferrite (BaFe₁₂O₁₉), which is operated in the multidomain region has been realized and investigated. The filter is designed using the length of dielectric waveguide. Depending on the type of preliminary created regular domain structure in hexaferrite the filter resonance frequency f_r can vary in the range of 47-51 GHz, with a maximum rejection at the frequency f_r of about 22-24 dB and 3dB-bandwidth of about Δf = 50 MHz. Also, it is shown that the resonance frequency f_r of such a filter is tunable in the range of 45-57 GHz by applying a low external DC magnetic biasing fields H₀ <; 4πM_s to the hexaferrite resonator.

Keywords

barium compounds; crystal filters; crystal resonators; dielectric waveguides; ferrite filters; millimetre wave filters; notch filters; BaFe₁₂O₁₉; dielectric waveguide; frequency 45 GHz to 57 GHz; low external DC magnetic biasing fields; regular domain structure; self-biased millimeter wave notch filter; single crystal hexaferrite resonator; Crystals; Dielectrics; Magnetic domains; Magnetic separation; Microwave filters; Resonant frequency; Resonator filters; dielectric waveguide; millimeter wave filter; regular domain structure; single crystal M-type hexaferrite;

fLanguage

English

Publisher

ieee

Conference_Titel

Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW), 2013 International Kharkov Symposium on

Conference_Location

Kharkiv

Print_ISBN

978-1-4799-1066-3

Type

conf

DOI

10.1109/MSMW.2013.6622026

Filename

6622026