Ferromagnetic resonance behaviors of integrated CoPdAIO magnetic film on coplanar waveguide

Ki Hyeon Kim, Masahiro Yamaguchi, Jongryoul Kim

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7 Citations (Scopus)


CoPdAlO magnetic films, whose ferromagnetic resonance (FMR) frequency was 4.2 GHz, were deposited on a coplanar waveguide (CPW) by using a RF magnetron sputtering method and were then patterned with a size of 2000 μm × 50 μm × 2 μm (l × w × t). In the case of the patterned magnetic films on CPW, the calculated and the measured FMR frequencies were shifted to around 7 GHz, and the measured characteristic impedance of the CPW was also changed by around 7 GHz. In addition, the propagation wavelength shortening effect was enhanced by about 17 % up to 7 GHz compared with that of the CPW without magnetic film. These results show that patterned magnetic films can be used as band-pass filters and broad-band EMI noise filters in the RF and the microwave regions.

Original languageEnglish
Pages (from-to)2026-2030
Number of pages5
JournalJournal of the Korean Physical Society
Issue number6
Publication statusPublished - 2007 Dec


  • Ferromagnetic resonance
  • Magnetic film devices
  • Noise suppression
  • Permeability


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