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Coupled magnetostatic/microwave solver for ferrite edge‐mode phase shifters
Author(s) -
Dillon Bernice M.,
Gibson Andrew A. P.
Publication year - 1999
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/(sici)1099-1204(199909/10)12:5<389::aid-jnm339>3.0.co;2-4
Subject(s) - stripline , microwave , ferrite (magnet) , solver , magnetization , phase shift module , physics , electromagnetic shielding , demagnetizing field , condensed matter physics , stub (electronics) , computational physics , optics , materials science , magnetic field , electronic engineering , mathematics , engineering , quantum mechanics , mathematical optimization
A linked static/microwave finite element solver for the analysis of ferrite‐loaded waveguides with arbitrary geometry and magnetization is described. The magnetostatic solution of the DC bias circuit and ferrite magnetization curve are used to construct the tensor permeability for the microwave solver. This avoids using normalized tensor entries or demagnetizing fields and it caters for non‐uniform bias fields. Split phase constants and a higher‐order mode diagram are presented for the case of a quasi‐planar stripline edge mode phase shifter. Field plots illustrate the edge mode phenomena. Copyright © 1999 John Wiley & Sons, Ltd.