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    A thin film passive magnetic field sensor operated at 425 MHz

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    Type
    Conference Paper
    Authors
    Li, Bodong cc
    Kosel, Jürgen cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Sensing, Magnetism and Microsystems Lab
    Date
    2013-06
    Permanent link to this record
    http://hdl.handle.net/10754/564753
    
    Metadata
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    Abstract
    A passive, magnetic field sensor consisting of a 425 MHz surface acoustic wave (SAW) transponder loaded with a giant magnetoimpedance (GMI) element is developed. The transponder, consisting of two interdigital transducers (IDTs) and the GMI element, a multilayer structure composed of Ni80Fe 20/Cu/Ni80Fe20, are fabricated on a 128° Y-X cut LiNbO3 substrate. The integrated sensor is characterized with a network analyzer through an S-parameter measurement. Upon the application of a magnetic field, a maximum amplitude change and phase shift of 2.7 dB and 20 degree, respectively, are observed. Within the linear region, the magnetic sensitivity is 3870 dB/T and the resolution is 1.3 μT. © 2013 IEEE.
    Citation
    Li, B., & Kosel, J. (2013). A thin film passive magnetic field sensor operated at 425 MHz. 2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII). doi:10.1109/transducers.2013.6626804
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII)
    Conference/Event name
    2013 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013
    ISBN
    9781467359818
    DOI
    10.1109/Transducers.2013.6626804
    ae974a485f413a2113503eed53cd6c53
    10.1109/Transducers.2013.6626804
    Scopus Count
    Collections
    Conference Papers; Electrical and Computer Engineering Program; Sensing, Magnetism and Microsystems Lab; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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