I'm used to seeing log-periodic antennas, the classic "TV antenna" that one can still see on the tops of houses or older buildings. There is a long row of transversely-mounted elements, connected in some way along the center axis, whose length and spacing vary in a log-periodic fashion.
But when I was doing research before writing this question I came across this log-periodic antenna.
Does this design have a name? It's one continuous conductor, and serpentine with each successive element connected in the opposite direction than the previous. Why? is the serpentine nature important for the way that it functions?
above: Cropped detail of "Log-periodic shortwave antenna besides the old Varberg Radio Station, Sweden" From here. Right click and open in a new window for larger view.
above: "Log-periodic shortwave antenna besides the old Varberg Radio Station, Sweden" From here.