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Element‐free Galerkin method for transient electromagnetic field simulation
Author(s) -
Liu Xiaofei,
Wang BingZhong,
Lai Shengjian
Publication year - 2008
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23017
Subject(s) - transient (computer programming) , galerkin method , electromagnetic field , grid , field (mathematics) , domain (mathematical analysis) , time domain , antenna (radio) , computer science , finite element method , computational science , engineering , mathematics , mathematical analysis , physics , geometry , structural engineering , telecommunications , quantum mechanics , pure mathematics , computer vision , operating system
Element‐free Galerkin method (EFGM) is extended to simulate transient electromagnetic field. EFGM, which is based on moving least‐square interpolations for the test and trial functions, is a promising method that needs no element connectivity data but only a set of nodes in computational domain and boundaries and does not suffer much degradation in accuracy when nodal arrangements are very irregular. EFGM is applicable to arbitrary shapes; therefore, it can solve some problems that traditional grid‐based methods cannot solve effectively in time‐domain electromagnetic field, such as thin plate problems, narrow gap problems, antenna structure optimization, etc. The numerical examples present the validation of EFGM in transient electromagnetic field and its advantages compared with traditional numerical methods. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 134–138, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23017