Topband: Wideband Balun...?

[Eddy Swynar]

Good Day All,

I am thinking of incorporating a homebrewed 4:1 balun as part of a transmatch that I have here, which was designed to feed coaxial cable-fed antennas only...

Is there really & truly such a thing as an air core 4:1 balun that will cover the entire spectrum from 1.8- to 29.7-MHz...? I've looked & I've repeatedly searched on the internet, but can not quite come up with such an animal. Maybe the frequency range of such a beast is far too great for any practical design...

Anyone have any leads in this regard...?

Thanks in advance, & vy

~73~ de Eddy VE3CUI - VE3XZ