Dynamic Threshold Control and Higher-Order Processes for Magnetics Based Microwave Devices

被引:1
|
作者
Venugopal, Aneesh [1 ]
Victora, R. H. [1 ]
机构
[1] Univ Minnesota Twin Cities, Minneapolis, MN 55455 USA
来源
2021 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS) | 2021年
关键词
microwave magnetics; ferromagnetic resonance; parametric effects; ferrite films; frequency selective limiters; nonlinear magnetics; hysteresis; magnonics;
D O I
10.1109/IMS19712.2021.9574989
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We report three important results in this work. Firstly, we have demonstrated dynamic control of the nonlinearity threshold for the first time using the field-intensity of a secondary signal. Traditional approaches to controlling the threshold field intensity require replacing the magnetic sample and therefore are not dynamic. Secondly, we have described the effects of the higher-order magnon scattering processes on properties of interest like the magnetic-susceptibility - important for magnetics-based RF devices. Finally, this work features the first micromagnetics-based demonstration of microwave-induced magnetic hysteresis. The resulting bistability is interesting not just from a physics perspective but also for potential applications such as switches and memories. These results hold important implications for all the magnetics-based RF devices like Frequency Selective Limiters (FSLs), Signal-to-Noise-ratio Enhancers (SNEs), etc. Analytical explanations of these phenomena have also been provided, which have been verified using rigorous micromagnetic simulations.
引用
收藏
页码:358 / 361
页数:4
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