TY - JOUR
T1 - Combined Source Integral Equation-Based Theory of Characteristic Modes for Impenetrable Bodies
AU - Ylä-Oijala, Pasi
AU - Järvenpää, Seppo
PY - 2019/4/1
Y1 - 2019/4/1
N2 - The theory of characteristic modes (TCM) based on the combined source integral operator (CSIO) is developed for perfect electric conductors and for impedance boundary condition. This formulation is similar to the one based on the combined field integral operator (CFIO), circumvents the interior resonance problem appearing in the electric field integral operator-based TCM. The eigenvalues obtained by the CSIO-based formulation agree well with the analytical and numerical CFIO-based solutions. However, the eigenvectors of the resonating modes computed with the CSIO-based approach are found to be corrupted at the internal resonance frequencies.
AB - The theory of characteristic modes (TCM) based on the combined source integral operator (CSIO) is developed for perfect electric conductors and for impedance boundary condition. This formulation is similar to the one based on the combined field integral operator (CFIO), circumvents the interior resonance problem appearing in the electric field integral operator-based TCM. The eigenvalues obtained by the CSIO-based formulation agree well with the analytical and numerical CFIO-based solutions. However, the eigenvectors of the resonating modes computed with the CSIO-based approach are found to be corrupted at the internal resonance frequencies.
KW - Characteristic modes
KW - combined source integral equation (CSIE)
KW - impedance boundary condition (IBC)
KW - perfect electric conductor (PEC)
KW - spurious solutions
UR - http://www.scopus.com/inward/record.url?scp=85064250072&partnerID=8YFLogxK
U2 - 10.1109/TAP.2019.2893386
DO - 10.1109/TAP.2019.2893386
M3 - Article
AN - SCOPUS:85064250072
SN - 0018-926X
VL - 67
SP - 2825
EP - 2828
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 4
M1 - 8616755
ER -