A New Conformal FDTD for Lossy Thin Panels
- Resource Type
- Periodical
- Authors
- Cabello, M.R.; Angulo, L.D.; Alvarez, J.; Bretones, A.R.; Garcia, S.G.
- Source
- IEEE Transactions on Antennas and Propagation IEEE Trans. Antennas Propagat. Antennas and Propagation, IEEE Transactions on. 67(12):7433-7439 Dec, 2019
- Subject
- Fields, Waves and Electromagnetics
Aerospace
Transportation
Components, Circuits, Devices and Systems
Time-domain analysis
Finite difference methods
Slabs
Boundary conditions
Numerical stability
Stability analysis
Power system stability
Conformal modeling
electromagnetic shielding
finite-difference time domain (FDTD)
lossy materials
shielding effectiveness (SE)
subcell models
thin panels
- Language
- ISSN
- 0018-926X
1558-2221
A novel conformal technique for the finite-difference time-domain (FDTD) method is proposed to deal with curved and arbitrarily oriented lossy thin panels. This is formulated as an extension of the existing conformal relaxed Dey–Mittra (CRDM) method combined with subcell algorithms to handle wave propagation across the panel. Two alternatives are presented for this: the classical impedance network boundary condition (INBC) and a recent subgridding boundary condition (SGBC) developed by the authors. Several test cases are employed to demonstrate the capability of the proposed method to remove errors associated with the usual staircased FDTD method.