"Richard Harrison" wrote
My original posting in this thread was based on the fact that antenna
voltage distribution depends on constructon and frequency. Voltage
amplitudes at all points on the sntenna increase when the rms voltage at
any point rises.. Radiation and reception from an antenna are a function
of antenna voltage. This is unrelated to directive gain.
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TV and FM broadcast transmit antenna designs include many using 1/2-wave,
resonant dipoles with "fat" radiators -- however they all have published
gains based on the standard gain of a dipole (1.64X that of an isotropic
radiator). There is no difference in gains between slender and fat radiator
designs in the broadcast industry.

Examples on request.

RF