Title :
A nonconformal FETI method with a reduced global interface system
Author :
Ming-Feng Xue ; Jian-Ming Jin
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA
Abstract :
This paper presents a nonconformal finite element tearing and interconnecting (FETI) method where the dual unknown is expanded by modal fields. With this modal expansion, the number of dual unknowns can be reduced significantly, thus reducing the size of the global interface system. Scattering analysis of a deep cavity is adopted to illustrate the application of the method. Its accuracy and efficiency are validated by calculating the monostatic radar cross section of a rectangular cavity.
Keywords :
electromagnetic wave scattering; finite element analysis; radar cross-sections; deep cavity; finite element tearing and interconnecting method; modal expansion; monostatic radar cross section; nonconformal FETI method; rectangular cavity; reduced global interface system; scattering analysis; Accuracy; Cavity resonators; Electric fields; Equations; Finite element analysis; Scattering; Transmission line matrix methods;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6905447
