The influence of geometry on spin wave propagation in a system of two waveguiding structures with linearly varying width

V. A. Gubanov^a, F. E. Garanin^a, A. V. Ognev^b, A. V. Sadovnikov<sup>a

a</sup> Saratov State University
^b Sakhalin State University

Abstract: A study of the influence of geometry on spin wave propagation has been carried out using micromagnetic simulations in a composite waveguide structure made of Iron-Yttrium Garnet film with linearly varying widths. It is shown that increasing the distance between waveguides with linearly varying widths leads to a reduction in the frequency bandwidth due to the cutoff of the high-frequency region. The structure can be used as a spatial and frequency filter.

Keywords: spin waves, magnonics, linear change of direction, multiport structure, waveguide system.

Received: 29.05.2025
Revised: 18.08.2025
Accepted: 29.08.2025

DOI: 10.61011/PJTF.2026.01.61912.20391

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