Analyzing Large-Scale Arrays Using Tangential Equivalence Principle Algorithm With Characteristic Basis Functions

作者：Shao, Hanru^*; Hu, Jun; Lu, Wenchun; Guo, Han; Nie, Zaiping

来源：Proceedings of the IEEE, 2013, 101(2): 414-422.

DOI：10.1109/JPROC.2012.2193652

• Characteristic basis CBF)
• electromagnetic scattering
• equivalence principle algorithm
• large scale
• multilevel fast multipole algorithm (MLFMA)
• periodic array

In this paper, the tangential equivalence principle algorithm (T-EPA) combined with characteristic basis functions (CBFs) is presented to analyze the electromagnetic scattering of large-scale antenna arrays. The T-EPA is a kind of domain decomposition scheme for the electromagnetic scattering and radiation problems based on integral equation (IE). CBFs are macrobasis functions which are constructed by conventional local basis functions. By utilizing CBFs together with the T-EPA, the scattering analysis of large-scale arrays will be much more efficient with decreased unknowns compared with the original T-EPA. Further, the multilevel fast multipole algorithm (MLFMA) is applied to accelerate the matrix-vector multiplication in the T-EPA. Numerical results are shown to demonstrate the accuracy and efficiency of the proposed technique.

• 出版日期2013-2