I would be highly suspicious of anything with a description like that especially if it has the call sign of a supposed amateur radio expert in it. The term "Phase Tuned" could mean anything, and i doubt that the "system" in question is anywhere near being revolutionary.
In fact technically speaking you could argue that a standard yagi antenna is phase tuned as everything about the dimensions of a yagi relate to the phase of the signals it works with to some degree.
As another example of a dubious revolutionary new antenna discovery, I recent purchased a 4 element quad which has a patented SFS Signal Feed System which i imagine was designed by a ham radio expert, and this antenna is basically a piece of junk which i didn't even bother assembling, and is now an expensive AUD$1200 pile of spare parts which i can't use for anything sitting under my house.
Apologies for the negative answer, but i would steer clear and not waste any time on these grandoise claims by ham radio operators regarding some new invention that no one else has apparently ever thought about yet.