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Ferrite phase shifters using stress-insensitive garnet materials

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4 Author(s)
J. T. Vaughn ; EMS Technol. Inc., Norcross, GA, USA ; P. R. Cox ; G. P. Rodrigue ; G. R. Harrison

Stable hysteresis characteristics of ferrimagnetic materials are critical to the RF performance of microwave ferrite toroidal phasers. Particularly troublesome are the magnetostrictive characteristics where the hysteresis properties are altered by stress. This paper presents the results of a study addressing Mn+3 substitutions in garnets to improve the resultant magnetostrictive characteristics in order to achieve stress-insensitive performance in waveguide toroidal phasers

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IEEE Transactions on Microwave Theory and Techniques  (Volume:43 ,  Issue: 5 )