Electrically isolated end-fed vs. center-fed dipole radiation
Testing confirms an end-fed dipole can energize the radiator nearly as well as a center-fed without need of additional counterpoise or other extraneous conductors.
half wave
Articles about the half-wave radio antenna.
Displacement Currents
Displacement current explains why the ends of dipole antennas have something more than zero current.
The dipole antenna, how industry defines it
Is a dipole antenna defined by its behavior alone or also how one energizes it? The answer exists in IEEE and historical literature.
EFHW LNR Precision EF-10/20/40MKII Test Data
Basic tests of the LNR Precision EF-10/20/40 multi-band portable HF EFHW antenna including S11, SWR and a bandwidth check of the match box.
EFHW LNR Precision EF-10/20/40MKII Examination
The background and details of the LNR (Par Electronics) EF-10/20/40 end fed half-wave multi-band portable HF antenna. Come see what’s inside the mysterious “black box.”
1/2 Wave vs. 5/4 Wave VHF EZNEC Shootout
Longer is not always better in the world of antennas. Such is the case of the 5/4 wave vertical antenna… a Super J-Pole Wannabe Antenna.