How much of this has been incorperated into modern practices

This article details Teslas understanding of RF and Im wondering how much of it is actually in practice, ovbously some of it is but as for the rest I am unsure. Would be nice if a HAM or RF specialist details what has and has not been developed.

https://drive.google.com/open?id=1pi...4mhyp8Cfdxu8zB

Greatly appreciated.