This took me a few years to work out folding back the end of a dipole or vertical antenna. But I got there in the end. There is no doubt a formula for this, but this is my practical experience. Here is the link to the Linear Loaded Dipole:    • Small Cheap Linear Loaded 80m Dipole  
More videos:
   • Antenna Modelling   Antenna Modelling
   • Tips and Tricks   Tips and Tricks
   • Antennas   Antennas
   • Live Streams   Live Streams
   • Commander World   My Stuff
   • Foundation Training   Ham Radio Training