Richard Clark, KB7QHC wrote:
"Something tells me NO ONE knows why."

The technique works. Before erection we had a newly designed 6&7 MHz
curtain antenna modeled in the lab at 450 MHz, about a freq. ratio of
70. The as-built antennas were measured and found to perform exactly as
predicted by the scaled-down version.

Cecil`s question about continuously loaded antennas is appropriate. I
suspect the wire size needs to be modeled too, but Cecil knows much more
about loading coils than I do.

Best regards, Richard Harrison, KB5WZI