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The geometry setup for the patch antenna in [[EM.Tempo]] is shown in the figure below. The dielectric substrate layer is backed by a perfect electric conductor (PEC) plate. The probe feed is modeled by a lumped source on a short vertical PEC line connecting the patch to the bottom ground plane.
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The patch structure was simulated using [[EM.Tempo]]'s FDTD solver on a thick metal ground. The 3D far-field radiation pattern of the isolated finite-substrate patch antenna is shown in the figure below.
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The figures below show the 2D polar radiation patterns of the patch antenna in the principal YZ and ZX planes.
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