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Multi-layered Fe Films for Microwave ApplicationsAlexey V. Osipov, I. T. Iakubov, Andrey N. Lagarkov, S. A. Maklakov, D. A. Petrov, Konstantin N. Rozanov, and I. A. Ryzhikov doi:10.2529/PIERS070320070112 Downloads: 1467 Abstract:The microwave permeability of multi-layered Fe films is under study. The multi-layer films are found to possess more rigid magnetic structure and larger damping factor of ferromagnetic resonance compared to those of single-layer films. Bulk materials with high microwave permeability may be produced as laminated structures of these multi-layer ferromagnetic films. In the paper, experimental data are presented on the microwave permeability of such laminated regular structures based on Fe films. Possible technical applications of the materials under study include thin wideband radar absorbers and miniaturized patch antennas.References:1. Acher, O., J. L. Vermeulen, P. M. Jacquart, J. M. Fontaine, and P. Baclet "Permeability measurement on ferromagnetic thin films from 50 MHz up to 18 GHz," J. Magn. Magn. Mater., Vol. 136, 269-278, 1994. 2. Lagarkov, A. N., I. T. Iakubov, I. A. Ryzhikov, K. N. Rozanov, N. S. Perov, E. P. Elsukov, S. A. Maklakov, A. V. Osipov, M. V. Sedova, A. M. Getman, and A. L. Ulyanov "Fe-N films: morphology, static and dynamic magnetic properties," Physica A. accepted 3. Rozanov, K. N., N. A. Simonov, and A. V. Osipov "Microwave measurements of the magnetic film permeability," J. Communic. Technol. Electron., Vol. 47, No. 2, 210-216, 2002. 4. Iakubov, I. T., A. N. Lagarkov, S. A. Maklakov, A. V. Osipov, K. N. Rozanov, I. A. Ryzhikov, and S. N. Starostenko "Microwave permeability of composites filled with thin Fe films," J. Magn. Magn. Mater., Vol. 300, e74-e77, 2006. 5. Buznikov, N. A. and K. N. Rozanov, "The effect of stripe domain structure on dynamic permeability of thin ferromagnetic films with out-of-plane uniaxial anisotropy," J. Magn. Magn. Mater., Vol. 285, No. 3, 314-326, 2004. 6. Lagarkov, A. N., A. V. Osipov, K. N. Rozanov, and S. N. Starostenko "Microwave composites filled with thin ferromagnetic films. Part I. Theory," ICMAT 2005: Proc. of Symp. R, 74-77, Singapore, July 3--8, 2005. 7. Ikonen, P. M. T., K. N. Rozanov, A. V. Osipov, P. Alitalo, and S. A. Tretyakov "Magnetodielectric substrates in antenna miniaturization: potential and limitations," IEEE Trans. Antennas Propag., Vol. 54, 3391-3399, 2006. 8. Rozanov, K. N. and S. N. Starostenko, "Influence of permeability dispersion on the bandwidth of magnetic radio absorbers," J. Communic. Technol. Electron., Vol. 48, No. 6, 652-659, 2003. |
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