Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5490873 | Journal of Magnetism and Magnetic Materials | 2017 | 4 Pages |
Abstract
Power-tunable metamaterials based on barium permanent magnetic ferrite have been proposed and fabricated in this research. Scattering parameter measurements confirm a shift in resonant frequency in correlation to changes in incident electromagnetic power within microwave frequency band. The tunable phenomenon represented by a blue-shift in transmission spectra in the metamaterials array can be attributed to a decrease in saturation magnetization resulting from FMR-induced temperature elevation upon resonant conditions. This power-dependent behavior offers a simple and practical route towards dynamically fine-tunable ferrite metamaterials.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Guanqiao Zhang, Chuwen Lan, Rui Gao, Ji Zhou,