Full-wave analysis of guided wave structures using a novel 2-D FDTD
Abstract
A 2D Yee's mesh with reduced grid size is proposed for the full-wave analysis of arbitrarily shaped guided wave structures. By introducing a phase shift along the z-direction (propagation direction), it is now possible to calculate the propagation constant of hybrid modes by using only a 2D mesh. This step not only allows the frequency selective application of the finite difference time-domain (FDTD) method, as desired in many design problems, but it also reduces the memory space and CPU time of the full-wave FDTD significantly. Furthermore, by introducing a phase shift, the size of the space grid in propagation direction is reduced to half its normal size.
- Publication:
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IEEE Microwave and Guided Wave Letters
- Pub Date:
- May 1992
- Bibcode:
- 1992IMGWL...2..165X
- Keywords:
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- Computational Grids;
- Electromagnetic Fields;
- Finite Difference Theory;
- Phase Shift;
- Space-Time Functions;
- Wave Equations;
- Fourier Transformation;
- Maxwell Equation;
- Microstrip Transmission Lines;
- Electronics and Electrical Engineering