[Elecraft] [k3] Isotropic Antenna

dave ho13dave at gmail.com
Wed Apr 6 17:57:45 EDT 2016



 > The
> isotropic antenna is a theoretical construct which is sometimes used as a
> baseline for the comparison of other antennas; it is not possible to build
> one.

Actually you can come pretty close to an isotropic antenna by using 
two center fed dipoles arranged at 90 degrees to each other and fed 90 
degrees out of phase. Not exactly a isotropic radiator, but pretty 
close. IIRC they can either be both horizontal or one horizontal and 
the other vertical. I'd have to re-run the models again to be sure.

And I have compared small loops to dipoles. I did not use a loaded 
dipole but, like Ron, a non-resonant wire fed with open wire or ladder 
line. The non-resonant wire won by a wide margin in the comparisons.

73 de dave
ab9ca/4


More information about the Elecraft mailing list