The CPML Absorbing Boundary Conditions for the Unconditionally Stable Meshless Modeling

Author

Yu, Yiqiang ; Chen, Zhizhang

Author_Institution

Dept. of Commun. Eng., East China Jiaotong Univ., Nanchang, China

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

468

Lastpage

472

Abstract

The convolutional perfectly matched layer (CPML) is developed for alternating-direction-implicit (ADI) radial point interpolation meshless method (RPIM). The presented node-based CPML provides efficient absorption of outgoing electromagnetic waves from a truncated computational region of the ADI-RPIM method, and thus extends the unconditionally stable meshless modeling to open-region scattering and radiation problems. The unconditional stability and effectiveness of the node-based CPML are verified through numerical experiments.

Keywords

electromagnetic wave absorption; electromagnetic wave scattering; interpolation; ADI-RPIM method; CPML absorbing boundary conditions; alternating-direction-implicit method; convolutional perfectly matched layer; electromagnetic wave absorption; node-based CPML; open-region scattering; radial point interpolation meshless method; radiation problems; truncated computational region; unconditional stability; unconditionally stable meshless modeling; Cutoff frequency; Equations; Finite difference methods; Interpolation; Mathematical model; Reflection; Time domain analysis; Alternating-direction-implicit (ADI) scheme; finite -difference time domain (FDTD); meshless methods; perfectly matched layer (PML); radial point interpolation method (RPIM);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2193110

Filename

6177647