2025/02/20 by Zhizhi Zhang, Yuanming Lai, Zhang, Zhizhi +8
Engineering · Materials Science · #Applied Physics (physics.app-ph) #FOS: Physical sciences #Magnetic Properties and Applications #Non-Destructive Testing Techniques #Surface Roughness and Optical Measurements
paper · pdf · doi:10.48550/arxiv.2502.14339
openalex publication_date 2025/02/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
It is conventional wisdom that the spectra of the impedances of magnetostatic waves (MSWs) determine the transmissions of MSW devices. In this work, we show that the characteristics of propagating MSWs have critical impacts on the characteristics of transmissions. A wave-propagation based analysis considering the inhomogeneous distributions of magnetic fields is presented for investigating the propagations of MSWs. Based on the analysis, it is demonstrated that the metallic nature of transducers causes the high insertion losses in high-frequency bands, while the dips and severe in-band ripples in low-frequency bands are resulted from the complicated interference between the multiple width modes. Simulations in HFSS verify the analysis with good agreements. Our work advances the understanding of MSWs propagating in ferrite films with metallic structures and paves the way to designing MSW devices aimed at implantation in microwave systems.