基于baw的多铁天线三维建模

2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting Pub Date : 2017-07-09 DOI:10.1109/APUSNCURSINRSM.2017.8072605

Z. Yao, Y. Wang

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引用次数: 3

摘要

建立了由压电材料和磁弹性材料组成的多铁体声(BAW)薄膜天线的模型。论证了铁磁共振(FMR)对辐射效率的影响。当施加的面内直流电磁场使磁弹性层的FMR频率与结构的BAW共振频率对齐时，可以观察到辐射效率的峰值。通过对传统偶极子天线和Chu极限的对比，验证了多铁性天线的优势。这项工作代表了基于磁弹性耦合的薄膜多铁天线在电小型天线中的潜在应用的第一个三维研究。

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3D modeling of BAW-based multiferroic antennas

The thin-film multiferroic bulk-acoustic-wave (BAW) antennas consisting of piezoelectric and magneto-elastic materials are modeled. The effect of ferromagnetic resonance (FMR) on the radiation efficiency is demonstrated. As the applied in-plane magnetic DC field aligns the FMR frequency of the magneto-elastic layer with that of the BAW resonance of the structure, peaks in radiation efficiency are observed. Benchmark against the conventional dipole antenna and Chu's limit validates the advantage of the multiferroic antennas. This work represents the first three-dimensional investigation in magneto-elastic coupling based thin-film multiferroic antennas for potential applications in electrically small antennas.

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来源期刊

2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting

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