KB1EGI pisze:

The EH antenna is a member of the class of antennas where coupling between two radiating tuned circuits, a factor poorly controlled in most designs, can produce great tuning changes. This factor works against any possible meaningful merits worth comparing the other various EH constructions.The abrupt phase transitions and broad regions of unchanging phase over many different tuning and coupling conditions suggest that trying to tweak the phase to produce CFA­ like conditions is doomed to failure. I think any variations in performance observed are due more tothe movement of the resonancepatterns in frequency than toany field ineractions