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Rhombic Math & Design

Updated: May 5

Ant-Math-03.xls (iw5edi.com)

Wire Antenna Calculator (ws6x.com)




Rhombic-Math
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Good symmetry is of vital importance for the performance of this antenna. The width of the antenna's main lobe is determined by the angles q and a, often referred to as tilt and apex angle. In general, the wider the rhombic (greater a and smaller q) the wider the beam and vice versa. Of coarse q and a are linked since the sum of half the tilt angle and apex angles is always 90 degrees: q/2 + a/2 = 90


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General Steve Walz

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