Reconfigurable Magnon-Based Radio Frequency Filters

A spin wave (SW) filter, consisting of a magnonic waveguide, a spacing layer, and an reconfigurable soft magnetic structure, is introduced. Micromagnetic simulations, along with preliminary experimental results, demonstrate the potential for a reconfigurable filtering action mediated by the dipolar coupling between the waveguide and the reconfigureble layer. This proof of concept lays the groundwork for a future device capable of serving as both a dedicated filter in radiofrequency signal processing and a tunable unit in computing applications.