Magnetic field sensitivity of LC filter-type magnetoimpedance sensors

Seung Dae Kim, Kwang Ho Shin, Jinwoo Kim, Young-Hak, Sang Ho Lim, Geon Sa-gong

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


In this study, we discuss the basic concept and applicability of the LC high pass filter configuration for the magnetoimpedance sensors, and examine its performance with SPICE simulation and experiment using amorphous ribbon pattern as a sensor element. Special attention is given to the sensitivity of the filter configuration. The LC filter circuit shows the output-changing ratio per 1 Oe of 5% at 50 MHz. This value is larger in 2.5 times than the output-changing ratio expected in a conventional bridge circuit with constant current excitation.

Original languageEnglish
Pages (from-to)e391-e393
JournalJournal of Magnetism and Magnetic Materials
Issue number1
Publication statusPublished - 2006 Sept

Bibliographical note

Funding Information:
This work was supported by Grant no. RTI04-01-03 from the Regional Technology Innovation Program of the Ministry of Commerce, Industry and Energy (MOCIE) of Korea.


  • LC filter circuit
  • Magnetoimpedance sensors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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