Would those of you with a theoretical background be able to comment on
the following. Looks interesting, but I have never seen the principle
applied.

http://www.eh-antenna.com/library/EH...DEFINITION.pdf

Here is a quote from the article:

"Next we see the EH antenna is created by shifting the phase of the
applied current relative to the applied voltage. This causes H to be
delayed an additional 90 degrees, and is now 180 degrees relative to
the applied voltage. H has also been delayed 90 degrees and is now
in phase with the applied voltage."

Can the effect described be achieved in practical terms, and if so,
what would be the simplest way to demonstrate it?

IOW how is the phase shift described actually implemented in terms of
basic hardware?

Thank you for your reply.

Klaus Jensen