An ODDM-Based Solution to CFIE With Impedance Boundary Condition

Author

Li, Wei-Dong ; Zhou, Hou-Xing ; Hu, Jun ; Song, Zhe ; Hong, Wei

Author_Institution

State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

1197

Lastpage

1200

Abstract

An overlapped domain decomposition method (ODDM) combined with the combined field integral equation (CFIE) with impedance boundary condition (IBC) is investigated for efficiently analyzing electromagnetic scattering by 3-D imperfectly conducting objects. When solving each subdomain, only parts of the matrices need to be stored into memory. Hence, the storage in the proposed method is much smaller for an electrically large object than that in the method of moments (MoM). Since the spurious edge effect of the currents is effectively depressed by using the buffer region, the proposed method yields accurate radar-cross-section (RCS) results within a very few outer iterations.

Keywords

boundary integral equations; electromagnetic wave scattering; matrix decomposition; method of moments; radar cross-sections; 3D imperfectly conducting objects; CFIE; ODDM; combined field integral equation; electromagnetic scattering; impedance boundary condition; matrix algebra; method of moments; overlapped domain decomposition method; radar cross-section; spurious edge effect; Boundary conditions; Electromagnetic scattering; Impedance; Magnetic domains; Moment methods; Surface impedance; Electromagnetic scattering; impedance boundary condition (IBC); overlapped domain decomposition method (ODDM);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2172969

Filename

6056545