Theory and design of a half-mode SIW Ferrite LTCC phase shifter

Handle URI:
http://hdl.handle.net/10754/577142
Title:
Theory and design of a half-mode SIW Ferrite LTCC phase shifter
Authors:
Ghaffar, Farhan A. ( 0000-0002-4996-6290 ) ; Shamim, Atif ( 0000-0002-4207-4740 )
Abstract:
A half mode SIW based Ferrite LTCC phase shifter is presented in this work. A theoretical model to predict the phase shift in the partially magnetized state has been derived. Contrary to the bulky external magnets employed by conventional ferrite phase shifters for biasing, this design uses bias windings embedded within the ferrite substrate. This not only enables miniaturization but also reduces the required bias fields considerably by avoiding the demagnetization effect (fields lost at air-dielectric interface for external biasing schemes). The design is optimized with the aid of magnetostatic and microwave simulations which are later verified through measurements of a prototype. The fabricated phase shifter provides a differential phase shift of 110°/cm and an FoM of 55°/dB for an applied DC current of 240 mA.
KAUST Department:
Applied Mathematics and Computational Science Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2015 IEEE MTT-S International Microwave Symposium
Issue Date:
May-2015
DOI:
10.1109/MWSYM.2015.7166932
Type:
Conference Paper
Appears in Collections:
Conference Papers; Applied Mathematics and Computational Science Program; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorGhaffar, Farhan A.en
dc.contributor.authorShamim, Atifen
dc.date.accessioned2015-09-10T14:19:53Zen
dc.date.available2015-09-10T14:19:53Zen
dc.date.issued2015-05en
dc.identifier.doi10.1109/MWSYM.2015.7166932en
dc.identifier.urihttp://hdl.handle.net/10754/577142en
dc.description.abstractA half mode SIW based Ferrite LTCC phase shifter is presented in this work. A theoretical model to predict the phase shift in the partially magnetized state has been derived. Contrary to the bulky external magnets employed by conventional ferrite phase shifters for biasing, this design uses bias windings embedded within the ferrite substrate. This not only enables miniaturization but also reduces the required bias fields considerably by avoiding the demagnetization effect (fields lost at air-dielectric interface for external biasing schemes). The design is optimized with the aid of magnetostatic and microwave simulations which are later verified through measurements of a prototype. The fabricated phase shifter provides a differential phase shift of 110°/cm and an FoM of 55°/dB for an applied DC current of 240 mA.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.titleTheory and design of a half-mode SIW Ferrite LTCC phase shifteren
dc.typeConference Paperen
dc.contributor.departmentApplied Mathematics and Computational Science Programen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.identifier.journal2015 IEEE MTT-S International Microwave Symposiumen
kaust.authorGhaffar, Farhan A.en
kaust.authorShamim, Atifen
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