Geodesic Math - Salsburg
3 Geodesic Math The central angle δ may be found by knowing the axial angles Ω 1,& Ω2 at each end of an element. δ = 180 - ( + ΩΩ12) Chord factor (cf) = the element lengths calculated based on a radius of a non-dimensional unit of one for the spherical form with the end
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THE LOG-PERIODIC DIPOLE ARRAY - Salsburg
www.salsburg.comTHE LOG-PERIODIC DIPOLE ARRAY The log-periodic dipole array (LPDA) consists of a system of driven elements, but not all elements in the system are active on a single frequency of operation.
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