Title :
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
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 fr can vary in the range of 47-51 GHz, with a maximum rejection at the frequency fr of about 22-24 dB and 3dB-bandwidth of about Δf = 50 MHz. Also, it is shown that the resonance frequency fr of such a filter is tunable in the range of 45-57 GHz by applying a low external DC magnetic biasing fields H0 <; 4πMs 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;
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
DOI :
10.1109/MSMW.2013.6622026
