A half mode inkjet printed tunable ferrite isolator

Handle URI:
http://hdl.handle.net/10754/626052
Title:
A half mode inkjet printed tunable ferrite isolator
Authors:
Ghaffar, Farhan A. ( 0000-0002-4996-6290 ) ; Vaseem, Mohammed; Bray, Joey. R.; Shamim, Atif ( 0000-0002-4207-4740 )
Abstract:
A novel half mode waveguide based ferrite isolator design is presented in this work. For the first time, tunability of the isolation band is demonstrated for a ferrite isolator. Instead of using the conventional antisymmetric bias the isolator requires a single direction of the magnetic bias field due to the half mode operation. Yttrium Iron Garnet (YIG) is used as the substrate for the device. The metallic walls of the waveguide are realized using inkjet printing. The magnetic biasing applied to the waveguide causes the RF waves to experience negative permeability in one direction of propagation hence providing isolation for this direction. For an applied bias of 3000 Oe, the device provides a maximum isolation figure of merit of 76.7 dB at 7.5 GHz. The isolation band can be controlled by changing the applied magnetostatic bias. As the bias is varied from 1500 Oe to 3500 Oe the center frequency of the isolation band varies from 4.45 GHz to 9 GHz. The measured response of the isolator shows that it can be integrated in any RF system requiring lower cost and good isolation.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program
Citation:
Ghaffar FA, Vaseem M, Bray JR, Shamim A (2017) A half mode inkjet printed tunable ferrite isolator. 2017 IEEE MTT-S International Microwave Symposium (IMS). Available: http://dx.doi.org/10.1109/MWSYM.2017.8059099.
Publisher:
IEEE
Journal:
2017 IEEE MTT-S International Microwave Symposium (IMS)
Conference/Event name:
2017 IEEE MTT-S International Microwave Symposium, IMS 2017
Issue Date:
24-Oct-2017
DOI:
10.1109/MWSYM.2017.8059099
Type:
Conference Paper
Additional Links:
http://ieeexplore.ieee.org/document/8059099/
Appears in Collections:
Conference Papers; 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.authorVaseem, Mohammeden
dc.contributor.authorBray, Joey. R.en
dc.contributor.authorShamim, Atifen
dc.date.accessioned2017-10-30T08:39:53Z-
dc.date.available2017-10-30T08:39:53Z-
dc.date.issued2017-10-24en
dc.identifier.citationGhaffar FA, Vaseem M, Bray JR, Shamim A (2017) A half mode inkjet printed tunable ferrite isolator. 2017 IEEE MTT-S International Microwave Symposium (IMS). Available: http://dx.doi.org/10.1109/MWSYM.2017.8059099.en
dc.identifier.doi10.1109/MWSYM.2017.8059099en
dc.identifier.urihttp://hdl.handle.net/10754/626052-
dc.description.abstractA novel half mode waveguide based ferrite isolator design is presented in this work. For the first time, tunability of the isolation band is demonstrated for a ferrite isolator. Instead of using the conventional antisymmetric bias the isolator requires a single direction of the magnetic bias field due to the half mode operation. Yttrium Iron Garnet (YIG) is used as the substrate for the device. The metallic walls of the waveguide are realized using inkjet printing. The magnetic biasing applied to the waveguide causes the RF waves to experience negative permeability in one direction of propagation hence providing isolation for this direction. For an applied bias of 3000 Oe, the device provides a maximum isolation figure of merit of 76.7 dB at 7.5 GHz. The isolation band can be controlled by changing the applied magnetostatic bias. As the bias is varied from 1500 Oe to 3500 Oe the center frequency of the isolation band varies from 4.45 GHz to 9 GHz. The measured response of the isolator shows that it can be integrated in any RF system requiring lower cost and good isolation.en
dc.publisherIEEEen
dc.relation.urlhttp://ieeexplore.ieee.org/document/8059099/en
dc.rights(c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.en
dc.subjectisolatoren
dc.subjectferriteen
dc.subjectwaveguideen
dc.subjectisolator figure of merit (IFM)en
dc.titleA half mode inkjet printed tunable ferrite isolatoren
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.identifier.journal2017 IEEE MTT-S International Microwave Symposium (IMS)en
dc.conference.date2017-06-04 to 2017-06-09en
dc.conference.name2017 IEEE MTT-S International Microwave Symposium, IMS 2017en
dc.conference.locationHonololu, HI, USAen
dc.eprint.versionPost-printen
dc.contributor.institutionRoyal Military College, Kingston, Ontario, K7K 7B4, Canadaen
kaust.authorGhaffar, Farhan A.en
kaust.authorVaseem, Mohammeden
kaust.authorShamim, Atifen
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