三维稳定SBP-SAT时域有限差分法的研究

2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI) Pub Date : 2023-07-23 DOI:10.1109/USNC-URSI52151.2023.10238224

Hanhong Liu, Ningbo Gong, Hong Ni, Shunchuan Yang

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引用次数: 0

摘要

提出了一种具有可证明稳定性的三维分部求和(SBP-SAT)时域有限差分(FDTD)方法。研究了SBP-SAT时域有限差分法的改进网格和几个基本理论问题。然后，对人体头部的比吸收率(SAR)进行了验证，验证了其准确性和效率。结果表明，所提出的SBP-SAT FDTD方法具有与FDTD方法相同的精度水平，且开销可以忽略不计。

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Toward the Development of A Three-dimensional Stable SBP-SAT FDTD Method

A three-dimensional summation-by-parts simultaneous approximation term (SBP-SAT) finite-difference time-domain (FDTD) method with the provable stability is proposed. The modified grids and several fundamental theoretical aspects of the proposed SBP-SAT FDTD method is investigated. Then, the specific absorption rate (SAR) of a human head is carried out to validate its accuracy and efficiency. Results show that the proposed SBP-SAT FDTD method has the same level of accuracy compared with the FDTD method with only a negligible overhead.

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来源期刊

2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI)

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