TY - JOUR
T1 - Accurate electromagnetic simulation of penetrable objects by higher order current and charge integral equation
AU - Ren, Yi
AU - Zhao, Xunwang
AU - Lin, Zhongchao
AU - Ren, Qiang
AU - Chen, Yongpin
AU - Liu, Yanhui
N1 - Publisher Copyright:
© 2021 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.
PY - 2021/8
Y1 - 2021/8
N2 - A higher order current and charge integral equation (CCIE) approach is developed for accurate electromagnetic scattering analysis of dielectric objects for a wide frequency band, that is from extremely low frequency to microwave frequency. Compared to the conventional CCIE method, its accuracy has been considerably improved by expanding the currents and charges using high-order hierarchical vector basis functions and higher order orthogonal scalar polynomials, respectively. The proposed higher order approach retains whole-frequency-range stability as the traditional low-order counterpart, but characterized with enhanced accuracy and higher convergence rate. Moreover, the consistency of the basis functions' expansion order in currents and charges is not mandatorily required, which further increase the flexibility in electromagnetic modeling. The scattered fields of penetrable objects are analyzed to validate the effectiveness of this new higher order CCIE, as well as investigate its accuracy, stability, and flexibility.
AB - A higher order current and charge integral equation (CCIE) approach is developed for accurate electromagnetic scattering analysis of dielectric objects for a wide frequency band, that is from extremely low frequency to microwave frequency. Compared to the conventional CCIE method, its accuracy has been considerably improved by expanding the currents and charges using high-order hierarchical vector basis functions and higher order orthogonal scalar polynomials, respectively. The proposed higher order approach retains whole-frequency-range stability as the traditional low-order counterpart, but characterized with enhanced accuracy and higher convergence rate. Moreover, the consistency of the basis functions' expansion order in currents and charges is not mandatorily required, which further increase the flexibility in electromagnetic modeling. The scattered fields of penetrable objects are analyzed to validate the effectiveness of this new higher order CCIE, as well as investigate its accuracy, stability, and flexibility.
KW - Current and charge integral equation (CCIE)
KW - Higher order basis functions (HOBFs)
KW - Low-frequency breakdown
UR - https://www.scopus.com/pages/publications/85099556006
U2 - 10.1109/TAP.2020.3048581
DO - 10.1109/TAP.2020.3048581
M3 - 文章
AN - SCOPUS:85099556006
SN - 0018-926X
VL - 69
SP - 5160
EP - 5165
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 8
M1 - 9318499
ER -