Three-dimensional FDTD analysis of quasi-optical arrays using Floquet boundary conditions and Berenger's PML
- 1 March 1996
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Guided Wave Letters
- Vol. 6 (3) , 138-140
- https://doi.org/10.1109/75.481092
Abstract
Infinite periodic grid structures excited by normally incident beams are analyzed using finite-difference time-domain (FDTD), with Berenger's PML (perfectly matched layer) absorbing boundary condition used to terminate the computation domain along the beam axis. Floquet boundary conditions are used to handle arbitrarily shaped unit cells. Restriction to normal incidence permits using a Gaussian pulsed excitation to generate the wideband frequency response. The technique is used to model a previously reported multilayer quasioptical rotator array, with excellent agreement to the measurements obtained in the 26.5-40 GHz hand in a lens-focused test setupKeywords
This publication has 8 references indexed in Scilit:
- Implementation of Floquet boundary condition in FDTD for FSS analysisPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A microstrip-based quasi-optical polarization rotator arrayPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A perfectly matched layer for the absorption of electromagnetic wavesJournal of Computational Physics, 1994
- Extensions to the FDTD method for the analysis of infinitely periodic arraysIEEE Microwave and Guided Wave Letters, 1994
- Ultrawideband absorbing boundary condition for termination of waveguiding structures in FD-TD simulationsIEEE Microwave and Guided Wave Letters, 1994
- Validation and extension to three dimensions of the Berenger PML absorbing boundary condition for FD-TD meshesIEEE Microwave and Guided Wave Letters, 1994
- Floquet-based FDTD analysis of two-dimensional phased array antennasIEEE Microwave and Guided Wave Letters, 1994
- Application of the FDTD technique to periodic problems in scattering and radiationIEEE Microwave and Guided Wave Letters, 1993