[Elecraft] dipole antenna efficiency
Kurt Pawlikowski
kurtt at pinrod.com
Sat Jan 5 12:01:36 EST 2008
David,
Actually, if you follow some of the other related articles Lloyd
wrote, the effect of this design seems to approximate a full wave dipole
with a device about 2% of a wave length. That is, a 40 meter antenna
about 3 feel long. He also purports a kind of "folded" antenna for 80
meters at about the same length. Wow. The possibility of a 6 foot long
160 meter antenna that works. I am definitely intrigued!
Regards,
kurtt
Kurt Pawlikowski, AKA WB9FMC
The Pinrod Corporation
kurtt at pinrod.com
(773) 284-9500
http://pinrod.com
David Cutter wrote:
> Ooops. I must apologise for my mistake: I've read the article in
> more detail and Lloyd is not feeding a small antenna, he is using the
> "feeder" as the antenna by deliberately unbalancing it with a terminal
> unit to obtain maximum current at the far end of the feeder.
> Presumably this would then be elevated to a convenient point for
> maximum effect.
>
> David
> G3UNA
>
>> Here is an interesting antenna made by Lloyd Butler VK5BR. It uses
>> open wire feeder to a VERY small antenna.
>>
>> http://users.tpg.com.au/users/ldbutler/ReverseFeedTopLoading.htm
>>
>> David
>> G3UNA
>>
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