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From: "hamilton mal" <g3kev.ham@virgin.net>
To: rsgb_lf_group@blacksheep.org
References: <000c01c2aaa4$3a7e2820$9ce8fc3e@l8p8y6> <005401c2ab1e$499d2840$035e89d9@jackie>
Date: Tue, 24 Dec 2002 12:44:30 -0000
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Subject: LF: Re: Re: Loops again
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----- Original Message -----
From: "Steve Thompson" <steve@eltac.co.uk>
To: <rsgb_lf_group@blacksheep.org>
Sent: Tuesday, December 24, 2002 7:30 AM
Subject: LF: Re: Loops again


>
> ----- Original Message -----
> From: hamilton mal <g3kev.ham@virgin.net>
> To: <rsgb_lf_group@blacksheep.org>
> 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

>
>
>