A Fast Parallel Solution Technique for Large Periodic Structures Based on FEM-DDM
| Autor: | Zhongchao Lin, Yu Zhang, Sheng Zuo, Daniel Garcia-Donoro, Xunwang Zhao, Junzhi Liu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Commercial software
Computer science HFSS 020206 networking & telecommunications Slot antenna Domain decomposition methods 02 engineering and technology Finite element method Matrix decomposition Power (physics) law.invention law 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Waveguide Algorithm |
| Zdroj: | IEEE Antennas and Wireless Propagation Letters. 19:1704-1708 |
| ISSN: | 1548-5757 1536-1225 |
| DOI: | 10.1109/lawp.2020.3014349 |
| Popis: | In this letter, a fast solution technique based on the finite-element approximation and the domain decomposition method for the analysis of superlarge electromagnetic periodic structures is presented. This technique reduces memory requirements and computational time by decomposing the original periodic structure into several nonoverlapping subdomains according to geometrical repetitions and utilizing the characteristics that most of the subdomains will generate identical system matrices. An adaptive parallel framework considering periodic element features is designed to further accelerate the proposed technique. Through comparisons with existing methods and the commercial software ANSYS HFSS, the benefits and accuracy of the proposed technique are demonstrated. Finally, a microstrip patch antenna array with 10 000 elements and a large waveguide slot antenna array with 4096 slots are simulated showing the power of the presented method. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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