Abstract
The dispersion relations for an in-plane-magnetized ferrite plate with an arbitrary combination of magnetic-wall or perfectly conducting plane boundary conditions imposed at a distance from the plate’s surfaces are compared. A rule is formulated so that a dispersion relation for one of the structures can be used to derive the equation for any other structure. The isofrequency and dispersion characteristics of magnetostatic waves in a metal/ferrite/magnetic-wall structure are investigated. It is found that, in this case, the waves are characterized not only by a unidirectional propagation over the entire range of their existence (∼5 GHz) but also by the presence of a nearly straight section of the dispersion curve (∼2 GHz). In this structure, volume waves, surface waves, and waves with an amplitude that is constant over the plate thickness are seen to exist within the same frequency interval.
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Original Russian Text © E.G. Lokk, 2007, published in Radiotekhnika i Elektronika, 2007, Vol. 52, No. 2, pp. 202–210.
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Lokk, E.G. Effect of a magnetic wall and a conducting plane on the characteristics of magnetostatic waves in an in-plane-magnetized ferrite plate. J. Commun. Technol. Electron. 52, 189–197 (2007). https://doi.org/10.1134/S1064226907020088
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DOI: https://doi.org/10.1134/S1064226907020088