Influence of nonuniform magnetic field on a ferrite junction circulator

Influence of nonuniform magnetic field on a ferrite junction circulator

We have analytically formulated the problem that a ferrite circulator junction is biased by a nonuniform magnetic field. Interport impedances of the junction can, therefore, be solved numerically. Nonuniform-bias field will reduce the transmission bandwidth, and the circulation condition is apt to b...

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Veröffentlicht in:IEEE transactions on microwave theory and techniques 1999-10, Vol.47 (10), p.1982-1989
Hauptverfasser: How, H., Oliver, S.A., McKnight, S.W., Zavracky, P.M., McGruer, N.E., Vittoria, C., Schmidt, R.
Format: Artikel
Sprache:eng
Schlagworte:
Bandwidth
Circulation
Ferrite
Ferrite circulators
Ferrites
Magnetic analysis
Magnetic field measurement
Magnetic fields
Magnetic resonance
Mathematical analysis
Mathematical models
Maxwell equations
Microwaves
Nonuniform electric fields
Nonuniform magnetic fields
Nonuniformity
Radio frequency
Saturation magnetization
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Zusammenfassung:We have analytically formulated the problem that a ferrite circulator junction is biased by a nonuniform magnetic field. Interport impedances of the junction can, therefore, be solved numerically. Nonuniform-bias field will reduce the transmission bandwidth, and the circulation condition is apt to be altered if the bias field shows nonuniformity near the center of the junction. Our calculation compares very well with measurements.
ISSN:0018-9480
1557-9670
DOI:10.1109/22.795072