----- Original Message -----
From: "Steve Thompson" <[email protected]>
To: <[email protected]>
Sent: Tuesday, December 24, 2002 7:30 AM
Subject: LF: Re: Loops again
----- Original Message -----
From: hamilton mal <[email protected]>
To: <[email protected]>
Sent: 23 December 2002 16:55
Subject: LF: Loops again
With all the loop talk that has been going on since before time began has
anyone found a design for a near perfect small loop, suppose its like how
long is a piece of string, obviously the bigger the better but then there
is
the diminishing returns senario, it there much noticeable difference
between
a 2 meter side square loop and a 4meter.
Which is better a single turn loop, several turns in series, several turns
in parallel and the best method of feed and matching at the loop. <snip>
------------------
This site gives a good treatise on loop antennas from first principles,
and
provides the maths to let you consider what to expect with changes in size
and numbers of turns.
http://www.ece.mcmaster.ca/faculty/georgieva/temp/Antennas_L11.pdf
Steve
Thanks Steve.
Its a wonderful article and has certainly refreshed my mathematical skills.
It starts off by saying that small loops are very INEFFICIENT and because of
the high losses really only suitable for Receiving purposes. Not very
promising.
73 De G3KEV
| 