http://arrrrv3dzzoluxubt3p24lpn7qu4rxuem3fb4kcmboji3dgpkgt4b2ad.onion/worter/antenna
Ferrite Beads, λ/4 element/wire on the end, ground planes, and
conducting balun options all have design considerations. Collinear design ideas rason.org suggests to add a λ/4 element to only the center conductor at
the end. It also recommends another λ/4 conductor crimped where
the feed line connects to the antenna with a ferrite coil at λ/2.