Unlike other wire antennas such as dipole or monopole antennas which act as resonators, with the radio currents traveling in both directions along the element, bouncing back and forth between the ends as standing waves, the Beverage antenna is a traveling wave antenna; the radio frequency current travels in one direction along the wire, in the same direction as the radio waves. I have modeled a 30 meter dipole, a Delta loop and a Quad loop (the loops 'hung' in a vertical plane). I have also spent hours reading various posts and web articles on the 2 loop antennas. I am trying to better my situation on 30 meters, my favorite band. Currently I have a dipole at about 38 feet,
A windom antenna is a single-wire-fed antenna which is worked against ground. It's a grounded vertical wire connected to a horizontal portion acting as a top hat capacitance. On the other hand, an OCF dipole is an ungrounded dipole antenna fed with twin-conductor line, either coaxial or open wire parallel conductors.
For operators looking for gain over a standard dipole, the delta loop is an excellent choice (nearly .5 db gain over a dipole). Most of the radiation tends to be on the horizontal components. Thus, of the two vertically polarized (Fig. B & E) -Fig. E would be the top DX performer with more radiated power higher off the ground.