Ferrite phase shifters using stress-insensitive garnet materials

Author

Vaughn, J. Todd ; Cox, Paul R. ; Rodrigue, G.P. ; Harrison, Gordon R.

Author_Institution

EMS Technol. Inc., Norcross, GA, USA

Volume

43

Issue

5

fYear

1995

fDate

5/1/1995 12:00:00 AM

Firstpage

1017

Lastpage

1022

Abstract

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

Keywords

ferrite phase shifters; gadolinium compounds; garnets; magnetostrictive devices; microwave phase shifters; waveguide components; yttrium compounds; RF performance; Y_1.7Gd_1.3Fe_5-xMn_x0 ₁₂; Y_1.7Gd_1.3Fe₅MnO₁₂; YGdFe5O12Mn5O12; YGdIGMn₅O₁₂; ferrite phase shifters; hysteresis characteristics; magnetostrictive characteristics; microwave ferrite toroidal phasers; stress-insensitive garnet materials; waveguide toroidal phasers; Ferrimagnetic materials; Ferrites; Garnets; Hysteresis; Magnetic materials; Magnetic properties; Magnetostriction; Phase shifters; Radio frequency; Toroidal magnetic fields;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.382060

Filename

382060