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Application of time-domain finite-volume method to some radiation problems in two and three dimensions

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3 Author(s)
Mohammadian, A.H. ; Rockwell Int. Sci. Center, Thousand Oaks, CA, USA ; Shankar, V. ; Hall, W.F.

Maxwell's curl equations in the time domain are cast into a conservation form and discretized using a finite-volume procedure. The Lax-Wendroff explicit scheme is then used to solve the discretized Maxwell's equations, resulting in second-order accuracy with respect to both time and space. This time-domain scheme does not require an interlaced mesh for electric and magnetic fields. Radiation pattern and input impedance of some typical parallel-plate waveguides and mutual coupling for arrays of parallel-plate waveguides are computed and, whenever possible, compared with closed form exact or approximate solutions. Radiation patterns for a two-dimensional horn and a rectangular waveguide are presented.

Published in:

Magnetics, IEEE Transactions on  (Volume:27 ,  Issue: 5 )