期刊
IEEE TRANSACTIONS ON MAGNETICS
卷 57, 期 9, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2021.3099286
关键词
Average radiated power; bulk acoustic wave (BAW); eddy current loss; magnetoelectric (ME) device; potential energy
资金
- Science and Technology on Electronic Information Control Laboratory [6142105200203]
- Fund of Robot Technology Used for Special Environment Key Laboratory of Sichuan Province [20kfkt02]
- Science and Technology Foundation of Southwest University of Science and Technology [20zx7114]
The study defines the eddy current loss angle as a figure of merit to evaluate the eddy current loss and constructs models for the potential energy and average radiated power. The finite element analysis is used to validate the analytical model, which shows perfect agreement with numerical simulation results.
The conductive magnetic film will produce eddy current loss when it works in a high-frequency band, which will reduce the performance of bulk acoustic wave magnetoelectric (BAW ME) devices. If the eddy current loss is not taken into account in the devices modeling, the models will be seriously distorted. Therefore, combining the Maxwell's equations with constitutive relations of ME material, we define the eddy current loss angle as a figure of merit to evaluate the eddy current loss. Then the models of eddy current loss rate of the potential energy and average radiated power are constructed, respectively. The finite element analysis is used to further validate the analytic model. In addition, the effect of isolation layers on eddy current suppression is studied by using the analytical model. The results show that the analytical solutions match with the numerical simulation results perfectly.
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