Kenji Tan

RMD Research and Development Center, Bulsār, Gujarat, India

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Publications (3)3.57 Total impact

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    ABSTRACT: Measurement techniques for time-domain transient currents are widely needed in many EMC applications. Demonstrated to have a lot of potential for this purpose, giant magnetio-impedance (GMI) probes are studied in this paper. Improvements in the probe design, including a balanced circuit for increased signal to noise ratio and an on-probe magnetic-field bias circuit, are proposed. These improvements in the probe design make the GMI probes more suitable for practical applications of time-domain transient current measurements.
    Electromagnetic Compatibility (EMC), 2010 IEEE International Symposium on; 08/2010
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    ABSTRACT: A giant magnetoimpedance (GMI) probe was fabricated in order to detect high-frequency magnetic fields. Magnetic near field measurements were carried out using the probe. A microstrip line driven by a current whose frequency was changed from 500 Hz to 1 GHz was used as a signal source in the measurements. The probe could clearly detect the characteristics of the field distribution such as high magnetic field strengths near both longitudinal edges of the signal plane of the microstrip line and null points. At a signal frequency of 100 MHz, the experimental result was compared with numerical calculation data. The output profile of the measurement agreed well with the profile of the calculated field distribution. The detection of the characteristics and the agreement indicate the potential that the GMI probe has high spatial resolution in a wide frequency range
    IEEE Transactions on Magnetics 11/2006; 42(10-42):3329 - 3331. DOI:10.1109/TMAG.2006.879627 · 1.39 Impact Factor
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    ABSTRACT: A high frequency carrier-type magnetic field sensor [gaint magnetoimpedance (GMI) sensor] probe with a narrow magnetic strip was fabricated. High frequency field detection was performed by this probe. For specific dc bias fields, high sensitivity could be achieved in a wide range of frequency from 5 kHz to 1 GHz . The sensitivity with a high dc bias field was lower than that with a low dc bias field. The outputs of the GMI probe were proportional to input power which generated the ac magnetic field.
    Journal of Applied Physics 05/2006; 99(8-99):08B315 - 08B315-3. DOI:10.1063/1.2173607 · 2.18 Impact Factor