电波科学学报2025，Vol.40Issue(6)：1036-1042,1068,8.DOI:10.12265/j.cjors.2024207
基于广义PMCHWT-EFIE和子全域基函数的大规模介质-金属复合周期结构高效电磁算法
Fast electromagnetic simulation of large-scale dielectric-metal periodic structures based on generalized PMCHWT-EFIE and sub-entire-domain basis function method
摘要
Abstract
Traditional integral methods may encounter some challenges,including massive unknowns,high storage requirements,and long computation times when calculating large-scale dielectric-metallic composite periodic structures.In this paper,the generalized Poggio-Miller-Chang-Harrington-Wu-Tsai(PMCHWT)-electric field integral equation(EFIE)method is used to calculate the dielectric-metallic structure with the contact-region modeling(CRM)technique to guarantee the continuity on the contact surface.To accelerate the filling of subarray impedance matrix,The fast dipole method(FDM)is introduced in this paper to reduce the computation time and storage requirements.Finally,the current distribution characteristics of subarrays are generalized to the composite dielectric-metallic periodic structures by the sub-entire-domain(SED)basis function method.Numerical results show that this method can significantly reduce computation time and memory usage while ensuring calculation accuracy.Compared with multilevel fast multipole method(MLFMM)of commercial software Altair FEKO,the computational memory is reduced by 1/10 and the calculation error is within 2.6 dB.关键词
子全域(SED)基函数/区域连接模型(CRM)/快速偶极子方法(FDM)/大规模介质-金属复合周期结构Key words
sub-entire-domain(SED)basis function/contact-region modeling(CRM)/fast dipole method(FDM)/large-scale dielectric-metallic composite periodic structures分类
数理科学引用本文复制引用
CHEN Wei,WU Yumao..基于广义PMCHWT-EFIE和子全域基函数的大规模介质-金属复合周期结构高效电磁算法[J].电波科学学报,2025,40(6):1036-1042,1068,8.基金项目
国家自然科学基金重点项目(62231021) （62231021）
国家自然科学基金面上项目(61971144) （61971144）
国家重点研发计划(2020YFA0711900,2020YFA0711901) （2020YFA0711900,2020YFA0711901）
国家自然科学基金国际合作与交流项目(92373201)Key Program of the National Natural Science Foundation of China(62231021) （92373201）
General Program of the National Natural Science Foundation of China(61971144) （61971144）
National Key Research and Development Program of China(2020YFA0711900,2020YFA0711901) （2020YFA0711900,2020YFA0711901）
International Cooperation and Exchange Programs of the National Natural Science Foundation of China(92373201) （92373201）
