Re: dipole antenna efficiency

Posted by David Woolley (E.L) on Jan 07, 2008; 8:11am
URL: http://elecraft.85.s1.nabble.com/dipole-antenna-efficiency-tp458071p458082.html

John Magliacane wrote:
>
> When Skin Effect losses become an issue in RF conductors and
> inductors, Litz wire is typically used.  I see no reason why a

One has to ask why this isn't used in all the commercial "miracle" antennas.

>
> I believe the Normal Mode Helix, as is used in HI-VHF television
> broadcasting, is a travelling wave antenna, rather than a
> resonant standing wave antenna, such as a dipole.

You are thinking of axial mode helices.  Normal mode helices are the
most common antennas on VHF hand-helds, and are often called "rubber ducks".



--
David Woolley
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