Title :
Tunable bandpass filter based on surface wave resonator for 6-mm waveband
Author :
Yudina, O. ; Ivanyuta, O. ; Prokopenko, Oleksandr ; Malyshev, V. ; Prokopenko, L.
Author_Institution :
Nat. Taras Shevchenko Univ. of Kiev, Kiev
Abstract :
The high-temperature superconducting (HTS) films on dielectric substrates were used successfully for creation of microwave X- and Ka-band planar filter with extremely low losses within the bandpass. These narrow bandpass filter are based on the surface wave resonator (SWR), which is coupled to a ferrite thin film. The filters are tunable by a DC magnetic field. We determined the coupled oscillations of gyrotropic YIG film with isotropic SWR in the frame of the magnetostatic approach. Using this theory and experimental results for X- and Ka-band filters we presume the microwave performance of coupled system of HTS and YIG films in 6-mm waveband.
Keywords :
band-pass filters; dielectric resonator filters; ferrite filters; garnets; high-temperature superconductors; magnetic thin films; microwave filters; superconducting filters; superconducting microwave devices; superconducting resonators; superconducting thin films; yttrium compounds; DC magnetic field; HTS; Y3Fe5O12; dielectric substrate; ferrite thin film; gyrotropic YIG film; high-temperature superconducting film; magnetostatic approach; microwave Ka-band planar filter; microwave X-band planar filter; size 6 mm; surface wave resonator; tunable bandpass filter; Band pass filters; Ferrite films; High temperature superconductors; Magnetic films; Magnetic separation; Microwave filters; Resonator filters; Superconducting filters; Superconducting microwave devices; Surface waves;
Conference_Titel :
Microwaves, Radar and Wireless Communications, 2008. MIKON 2008. 17th International Conference on
Conference_Location :
Wroclaw
Print_ISBN :
978-83-906662-8-0
