Title :
Tunable band-stop filter based on epitaxial Fe film on GaAs
Author :
Liau, V.S. ; Wong, T. ; Stacey, W. ; Ali, A. ; Schloemann, E.
Author_Institution :
Raytheon Res. Div., Lexington, MA, USA
Abstract :
Theoretical and experimental work on tunable bandstop filters based on single-crystal Fe films is reported. The filters can be tuned over a broad frequency range with a relatively small magnetic field. Theoretical predictions based on a parallel-plate transmission line model agree qualitatively with the observations, but the measured attenuation per unit length is about 2.5 times smaller than predicted.<>
Keywords :
band-stop filters; gallium arsenide; iron; microwave filters; solid-state microwave circuits; Fe-GaAs; GaAs; attenuation; magnetic field; parallel-plate transmission line model; tunable bandstop filters; Filters; Frequency; Gallium arsenide; Iron; Magnetic field measurement; Magnetic films; Magnetic separation; Predictive models; Semiconductor process modeling; Transmission line theory;
Conference_Titel :
Microwave Symposium Digest, 1991., IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-87942-591-1
DOI :
10.1109/MWSYM.1991.147168
