== Simulating a Larger Parabolic Reflector ==
In the last part of this application note, we consider a much larger parabolic reflector. For this purpose, we use the same pyramidal horn feed of the previous section. We also keep the axial length fixed and increase the focal length by 1.5 times to 12λ<sub>0</sub>. The f/d ratio now increases to 0.612. The dimensions of the combination structure are summarized in the table below.
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The figure below shows the geometry setup for the larger parabolic reflector in [[EM.Tempo]].
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[[Image:ART PARAB Fig29.png|thumb|left|640px| Geometry setup for the larger parabolic reflector with a pyramidal horn feed in EM.Tempo.]]
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