Tunable notch filter of ferrite-filled grooves in parallel plates

The characteristics of tunable notch filter of ferrite-filled grooves in parallel plates are investigated. The Fourier transform and mode matching is used to obtain a simple, rigorous solution. The 8.6 to 11.3 GHz tuning has been achieved with the dc magnetic field varying from 0 to 5830oe. The comp...

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Bibliographic Details
Published in:IEEE microwave and wireless components letters 2005-05, Vol.15 (5), p.363-365
Main Authors: Hwang, K.C., Eom, H.J.
Format: Article
Language:English
Subjects:
Applied sciences
Band pass filters
Circuit properties
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Ferrite grooves
Ferrites
Fourier transform
Fourier transforms
Frequency
Frequency filters
frequency tunable notch filter
Magnetic separation
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Microwave filters
mode matching
Rectangular waveguides
Resonator filters
Saturation magnetization
Scattering
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Description
Summary:The characteristics of tunable notch filter of ferrite-filled grooves in parallel plates are investigated. The Fourier transform and mode matching is used to obtain a simple, rigorous solution. The 8.6 to 11.3 GHz tuning has been achieved with the dc magnetic field varying from 0 to 5830oe. The comparison between our theory and measurement data using a rectangular waveguide shows a good agreement.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2005.847714