TY - GEN
T1 - A Loop-Star Decomposition for the B-Spline Based Discretization of the Electric Field Integral Equation
AU - Mirmohammadsadeghi, Mohammad
AU - Hofmann, Bernd
AU - Eibert, Thomas F.
AU - Andriulli, Francesco P.
AU - Adrian, Simon B.
N1 - Publisher Copyright:
© 2024 18th European Conference on Antennas and Propagation, EuCAP 2024. All Rights Reserved.
PY - 2024
Y1 - 2024
N2 - The electric field integral equation (EFIE) is widely employed to determine the field that is scattered from perfectly electrically conducting (PEC) structures. However, it is known to suffer from a low-frequency breakdown. In order to overcome this breakdown for a B-spline based (isogeometric) discretization of arbitrary polynomial order of the EFIE employing the method of moments, we propose a loop-star decomposition of the discretized surface current density resulting in a preconditioner involving solely sparse matrices. The proposed decomposition is applicable to open and closed simply-connected surfaces described by a single or by multiple patches. To verify the correctness of the proposed method, numerical examples are provided.
AB - The electric field integral equation (EFIE) is widely employed to determine the field that is scattered from perfectly electrically conducting (PEC) structures. However, it is known to suffer from a low-frequency breakdown. In order to overcome this breakdown for a B-spline based (isogeometric) discretization of arbitrary polynomial order of the EFIE employing the method of moments, we propose a loop-star decomposition of the discretized surface current density resulting in a preconditioner involving solely sparse matrices. The proposed decomposition is applicable to open and closed simply-connected surfaces described by a single or by multiple patches. To verify the correctness of the proposed method, numerical examples are provided.
KW - Broadband
KW - electric field integral equation
KW - low frequency
UR - http://www.scopus.com/inward/record.url?scp=85192491381&partnerID=8YFLogxK
U2 - 10.23919/EuCAP60739.2024.10501080
DO - 10.23919/EuCAP60739.2024.10501080
M3 - Conference contribution
AN - SCOPUS:85192491381
T3 - 18th European Conference on Antennas and Propagation, EuCAP 2024
BT - 18th European Conference on Antennas and Propagation, EuCAP 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th European Conference on Antennas and Propagation, EuCAP 2024
Y2 - 17 March 2024 through 22 March 2024
ER -