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On Sep 4, 1:25*pm, Richard Fry wrote:
And for equal, matched power applied to their feedpoints, the total of the energy "expended" (radiated) by both them is identical. _______________ For clarity I should have included the fact that the total of the energy "expended" (radiated) when equal and matched powers are applied to any and all elemental radiators, of whatever form, essentially is identical. What is NOT identical across these various radiator forms is the field intensity in specific directions in the radiation volume. THAT depends on the design of the radiating structure(s), and the installation+propagation environment. This is the reason for the 1.6 dB advantage in the intrinsic, free- space, peak gain of the full-wave dipole over the 1/2-wave dipole in the NEC analysis I posted earlier today. Both of these configurations radiate the same total energy (somewhere). But along their axes of maximum radiation, the full-wave antenna produces the greater field intensity of the two, for a given applied (and matched) power source. // |
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