High sensitivity and broad bandwidth magneto-impedance effect in magnetic microstrip lines

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DOIResolve DOI: http://doi.org/10.3379/jmsjmag.21.S2_491
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TypeArticle
Journal titleJournal of the Magnetics Society of Japan
ISSN1880-4004
0285-0192
Volume21
IssueS2
Pages491494
Subjectmagnetic sensor; magneto-impedance; magnetic microstrip line; transmission-line impedance; broad bandwidth, high sensitivity
AbstractA unique magneto-impedance effect by directly flowing microwave power in a Magnetic Microstrip Line was investigated. The microwave can be modulated by external fields that caused the impedance change due to the permeability variation in the magnetic strip. The amplitude variation of the microwave carrier was rectified to obtain output signals. A simple structure sensor has been developed that exhibited a high sensitivity of 10 mV/Oe, a high changing ratio of 48% in the transmission-line impedance and a broad signal bandwidth of 300 MHz. This sensor has great advantages of high sensitivity and broad bandwidth over MI sensors previously proposed.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedNo
NPARC number23001477
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Record identifier78ed32db-bd16-471d-b9fb-34badd594d79
Record created2017-02-16
Record modified2017-02-16
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