Enhanced Planar Antenna Efficiency Through Magnetic Thin-Films
نویسندگان
چکیده
This work proposes to use magnetic material as the substrate of planar antennas overcome platform effect caused by conducting ground plane. The upper bound radiation efficiency an electric-current-driven low-profile antenna is theoretically derived, which inversely proportional Gilbert damping factor material. Meanwhile, improvement due demonstrated a three-dimensional (3D) multiphysics and multiscale time-domain model. simulation results match theoretical derivation, showing 25% from backed FeGaB thin film with 2.56 um thickness. Furthermore, for conductive ferromagnetic materials, it shown that eddy current loss can be well suppressed laminating into multiple layers. modeled improved 2.2% 11.8% dividing 10 layers, fill 93%.
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ژورنال
عنوان ژورنال: IEEE journal on multiscale and multiphysics computational techniques
سال: 2021
ISSN: ['2379-8793', '2379-8815']
DOI: https://doi.org/10.1109/jmmct.2021.3136877