[1]汤进龙,洪伟.外推技术及其在金属衬底介质片对平面波反射分析中的应用[J].东南大学学报(自然科学版),2003,33(3):253-256.[doi:10.3969/j.issn.1001-0505.2003.03.002]
 Tang Jinlong,Hong Wei.Application of extrapolation technique in reflecting analysis of a dielectric patch with metal underlay for plane waves[J].Journal of Southeast University (Natural Science Edition),2003,33(3):253-256.[doi:10.3969/j.issn.1001-0505.2003.03.002]
点击复制

外推技术及其在金属衬底介质片对平面波反射分析中的应用()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
33
期数:
2003年第3期
页码:
253-256
栏目:
电磁场与微波技术
出版日期:
2003-05-20

文章信息/Info

Title:
Application of extrapolation technique in reflecting analysis of a dielectric patch with metal underlay for plane waves
作者:
汤进龙 洪伟
东南大学毫米波国家重点实验室,南京 210096
Author(s):
Tang Jinlong Hong Wei
State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China
关键词:
有限元法 Richardson外推技术 金属衬底 反射系数
Keywords:
FEM Richardson extrapolation technique metal underlay reflectance
分类号:
TN011;TM15
DOI:
10.3969/j.issn.1001-0505.2003.03.002
摘要:
基于Richardson外推技术结合有限元法快速计算均匀平面波入射到一个金属衬底的非均匀介质片上的反射系数.首先把分析区域剖分为2组,分别采用有限元法求解标量亥姆霍兹方程,得到平面入射波在某一给定角度照射下的场量,然后通过外推技术获得金属衬底非均匀介质片在这一给定角度入射波照射下的场量,并由此确定反射系数.计算结果表明Richardson外推技术结合有限元法能提高计算精度,且计算速度可加快.
Abstract:
The Richardson extrapolation technique in conjunction with the finite element method(FEM)is applied to calculate the reflectance of a dielectric patch with metal underlay for plane waves. With two groups of sparse mesh, the Helmholtz equation is solved using FEM in order to obtain the corresponding fields of the dielectric patch with metal underlay for plane waves. Then the extrapolation-fields can be achieved by using Richardson extrapolation technique. The extrapolation-field is in turn used to calculate the reflectance. It was observed that RET/FEM could approach to the analytical solution and result in CPU time saving.

参考文献/References:

[1] 金建铭.电磁场有限元方法[M].王建国译.西安:西安电子科技大学出版社,1998.24-39.
[2] Rekanos I T,Yioultsis T V,Tsiboukis T D.Inverse scattering using the finite-element method and a nonlinear optimization technique [J].IEEE Trans MTT,1999(3):336-344.
[3] Garb K,Meyerova R,Kastner R.Analysis of longitudinal slots in ridged waveguides using a hybrid finite element-galerkin technique [J].IEEE Trans AP,1994(6):833-839.
[4] Gedney S D,Mittra R.Analysis of the electromagnetic scattering by thick grating using a combined FEM/MM solution [J].IEEE Trans AP,1991(11):1605-1614.
[5] Mitchell A,Kokotoff D M,Austin M W.Closed-form expressions for the numerical dispersion and reflection in FEM simulations involving biaxial materials [J].IEEE Trans AP,1991(11):158-164.
[6] 邓建中.外推法及其应用[M].上海:上海科学技术出版社,1984.1-32.
[7] 朱起定,林群.有限元超收敛理论[M].长沙:湖南科学技术出版社,1989.264-292.
[8] Chen C M,Lin Q.Extrapolation of finite element approximation in a rectangular domain [J]. J Computer Math,1989(3):227-233.

相似文献/References:

[1]周平,徐金平.求解电磁场有限元-边界元方程组的有效方法[J].东南大学学报(自然科学版),2005,35(3):343.[doi:10.3969/j.issn.1001-0505.2005.03.005]
 Zhou Ping,Xu Jinping.Method for solving linear equations of hybrid finite element-boundary element method for EM problems[J].Journal of Southeast University (Natural Science Edition),2005,35(3):343.[doi:10.3969/j.issn.1001-0505.2005.03.005]
[2]唐伯明,邓学钧.刚性路面接缝传荷能力的评定与分析——FWD开发应用研究[J].东南大学学报(自然科学版),1991,21(6):84.[doi:10.3969/j.issn.1001-0505.1991.06.013]
 Tan9 Botming,Deng Xuejun,Deng Xuejun.Assessement of Load Transfer Across Joints in Rigid Pavements Using the FWD[J].Journal of Southeast University (Natural Science Edition),1991,21(3):84.[doi:10.3969/j.issn.1001-0505.1991.06.013]
[3]蒋全,周鹗.有限元法中处理周期性条件的统一公式[J].东南大学学报(自然科学版),1990,20(3):32.[doi:10.3969/j.issn.1001-0505.1990.03.006]
 General Formulae for Processing Periodic Conditions in Finite Element Method[J].Journal of Southeast University (Natural Science Edition),1990,20(3):32.[doi:10.3969/j.issn.1001-0505.1990.03.006]
[4]王玉民,王顺玉,余颖禾.碱熔锅非线性温度场及热应力分析[J].东南大学学报(自然科学版),1988,18(5):109.[doi:10.3969/j.issn.1001-0505.1988.05.016]
 Wang Yumin Wang Shunyu She Yinghe(Department of Mathematics and Mechanics).Non-linear Thermal and Stress Field in Alkali Melting Kattles[J].Journal of Southeast University (Natural Science Edition),1988,18(3):109.[doi:10.3969/j.issn.1001-0505.1988.05.016]
[5]王佩纶.有限元法在航空显象管玻壳设计中应用[J].东南大学学报(自然科学版),1986,16(2):10.[doi:10.3969/j.issn.1001-0505.1986.02.002]
 Wang Peilun.Application of the FEM Method to the Design of the Glass Shell of Aviation Picture Tube[J].Journal of Southeast University (Natural Science Edition),1986,16(3):10.[doi:10.3969/j.issn.1001-0505.1986.02.002]

备注/Memo

备注/Memo:
作者简介: 汤进龙(1964—), 男, 博士生,副教授; 洪伟(联系人),男,教授,博士生导师, weihong@seu.edu.cn.
更新日期/Last Update: 2003-05-20