دورية أكاديمية
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An Extended Newmark-FDTD Method for Complex Dispersive Media

التفاصيل البيبلوغرافية
العنوان: An Extended Newmark-FDTD Method for Complex Dispersive Media
المؤلفون: Yu-Qiang Zhang, Peng-Ju Yang
المصدر: International Journal of Antennas and Propagation, Vol 2018 (2018)
بيانات النشر: Hindawi Limited, 2018.
سنة النشر: 2018
المجموعة: LCC:Electrical engineering. Electronics. Nuclear engineering
مصطلحات موضوعية: Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Cellular telephone services industry. Wireless telephone industry, HE9713-9715
الوصف: Based on polarizability in the form of a complex quadratic rational function, a novel finite-difference time-domain (FDTD) approach combined with the Newmark algorithm is presented for dealing with a complex dispersive medium. In this paper, the time-stepping equation of the polarization vector is derived by applying simultaneously the Newmark algorithm to the two sides of a second-order time-domain differential equation obtained from the relation between the polarization vector and electric field intensity in the frequency domain by the inverse Fourier transform. Then, its accuracy and stability are discussed from the two aspects of theoretical analysis and numerical computation. It is observed that this method possesses the advantages of high accuracy, high stability, and a wide application scope and can thus be applied to the treatment of many complex dispersion models, including the complex conjugate pole residue model, critical point model, modified Lorentz model, and complex quadratic rational function.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1687-5869
1687-5877
Relation: https://doaj.org/toc/1687-5869; https://doaj.org/toc/1687-5877
DOI: 10.1155/2018/1573512
URL الوصول: https://doaj.org/article/ebf967305dc24ffc82f5a599ac580d76
رقم الأكسشن: edsdoj.bf967305dc24ffc82f5a599ac580d76
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:16875869
16875877
DOI:10.1155/2018/1573512