A novel Gaussian interpolation formula-based IE-FFT algorithm for solving EM scattering problems
✍ Scribed by Ben Lai; Xiang An; Hao-Bo Yuan; Zeng-Shuai Chen; Chun-Ming Huang; Chang-Hong Liang
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 216 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
The fast Fourier transform‐based integral equation algorithm (IE‐FFT) is a recently developed fast algorithm to solve electrically large problems. The key of the IE‐FFT algorithm is to choose a proper interpolation method, since it not only determines the algorithm's accuracy but also influences the computational complexity and the memory requirement directly. In this article, a novel Gaussian interpolation formula is proposed to optimize the IE‐FFT algorithm for solving EM scattering problems. Compared with the Lagrange interpolation, it can bring with higher accuracy and less memory costs. Furthermore, this interpolation scheme is also well suited for the higher‐order hierarchical basis functions. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2233–2236, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24523