A Spherical Harmonic Expansion Method for Accelerating the Interface Between the NEC-REF and NEC-BSC Codes

Quimby J. T.; Thompson R.; Marhefka R. J.; Rockway J. D.

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A Spherical Harmonic Expansion Method for Accelerating the Interface Between the NEC-REF and NEC-BSC Codes

机译：加速NEC-REF和NEC-BSC码之间的接口的球谐函数扩展方法

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A spherical harmonic expansion is proposed to provide a more efficient interface between a reflector antenna simulation code and an Uniform Geometrical Theory of Diffraction (UTD) ray tracing code. The principal bottleneck is a large number of dipole sources. As a consequence, a large number of dipole sources lead to a large number of ray traces, which increases the computational times in the UTD code. We propose to use a spherical harmonic expansion of the reflector fields as an efficient interface. This method saves significant computational times in the UTD code provided that the number of dipole sources per cell is large.

机译：提出了球谐展开，以在反射器天线仿真代码和统一几何衍射理论（UTD）射线跟踪代码之间提供更有效的接口。主要的瓶颈是大量的偶极子源。结果，大量的偶极子源导致大量的射线轨迹，这增加了UTD代码中的计算时间。我们建议使用反射器场的球谐展开作为有效的界面。如果每个单元的偶极子源数量很大，则此方法可在UTD代码中节省大量计算时间。

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《Applied Computational Electromagnetics Society journal》 |2015年第1期|22-29|共8页
作者
Quimby J. T.; Thompson R.; Marhefka R. J.; Rockway J. D.;
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作者单位

SPAWAR Syst Ctr Pacific, Syst Syst & Platform Design Div, San Diego, CA 92152 USA;

SPAWAR Syst Ctr Pacific, Syst Syst & Platform Design Div, San Diego, CA 92152 USA;

Ohio State Univ, ElectroSci Lab, Columbus, OH 43212 USA;

SPAWAR Syst Ctr Pacific, Syst Syst & Platform Design Div, San Diego, CA 92152 USA;

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正文语种 eng
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Dipoles; spherical harmonics; Uniform Theory of Diffraction;

机译：偶极子;球谐;均匀衍射理论;

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1. The Spherical Harmonic Interface Procedure for MM and UTD Codes [J] . J. T. Rockway, E. H. Newman, R. J. Marhefka Applied Computational Electromagnetics Society journal . 2006,第2期

机译：MM和UTD代码的球谐接口过程
2. Almost everywhere divergence of spherical harmonic expansions and equivalence of summation methods [J] . Chen Xianghong, Fan Dashan, Zhang Juan Revista matematica iberoamericana . 2020,第4期

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3. Numerical methods for the semiconductor Boltzmann equation based on spherical harmonics expansions and entropy discretizations [J] . Christian Ringhofer Transport Theory and Statistical Physics . 2002,第4a6期

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4. ENERGY-ANGLE DEPENDENT NEUTRON SOURCE IN DETERMINISTIC TRANSPORT CODES WITH SPHERICAL HARMONIC EXPANSION [C] . M. Becker, R. Dagan, C.H.M. Breeders, International conference on mathematics, computational methods reactor physics;MC 2009 . 2009

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5. Electromagnetic field determination of antenna systems in complex structural environments by the spherical harmonic interface procedure. [D] . Rockway, Jeanne. 2005

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6. A review of recent advances in the spherical harmonics expansion method for semiconductor device simulation [O] . K. Rupp, C. Jungemann, S.-M. Hong, -1

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7. A review of recent advances in the spherical harmonics expansion method for semiconductor device simulation [O] . Rupp, K., Jungemann, Christoph, Hong, S.-M., 2016

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8. Effect of Coordinate System Rotation on Spherical Harmonic Expansions. A Numerical Method [R] . Goldstein, J. D. 1983

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A Spherical Harmonic Expansion Method for Accelerating the Interface Between the NEC-REF and NEC-BSC Codes

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