Comparison and evaluation of boundary conditions for the absorption of guided waves in an FDTD simulation
- 1 December 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Guided Wave Letters
- Vol. 2 (12), 499-501
- https://doi.org/10.1109/75.173408
Abstract
Several absorbing boundary conditions suitable for terminating the finite-difference-time-domain (FDTD) simulation of microstrip structures are compared via numerical experiments. Both a superabsorbing boundary and a modified form of Litva's dispersive boundary condition are found to produce significantly lower reflection than the traditional first-order Mur boundary. The sensitivity of these boundary conditions to the choice of the input parameters, particularly the effective dielectric constant epsilon /sub eff/, is investigated, and optimal choices of these parameters are given.<>Keywords
This publication has 5 references indexed in Scilit:
- A super-absorbing boundary algorithm for solving electromagnetic problems by time-domain finite-difference methodPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- A dispersive boundary condition for microstrip component analysis using the FD-TD methodIEEE Transactions on Microwave Theory and Techniques, 1992
- Superabsorption-a method to improve absorbing boundary conditions (electromagnetic waves)IEEE Transactions on Antennas and Propagation, 1992
- Numerical Absorbing Boundary Conditions for the Wave EquationMathematics of Computation, 1987
- Absorbing Boundary Conditions for the Finite-Difference Approximation of the Time-Domain Electromagnetic-Field EquationsIEEE Transactions on Electromagnetic Compatibility, 1981