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Re: LF: Horizontally polarised radiation

from [hamilton mal] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: Horizontally polarised radiation
From: "hamilton mal" <[email protected]>
Date: Tue, 6 Jan 2004 13:25:09 -0000
References: <000201c3d2f3$c4fb5f40$61e4fc3e@l8p8y6> <[email protected]> <000001c3d009$acf7a620$c7e47f50@Smisan> <[email protected]> <000601c3d2c3$2bd34e70$b733f7c2@johnb5a82ea1a4> <[email protected]> <000201c3d2f3$c4fb5f40$61e4fc3e@l8p8y6> <[email protected]>
Reply-to: [email protected]
Sender: <[email protected]>
 
----- Original Message -----
Sent: Tuesday, January 06, 2004 8:16 AM
Subject: Re: LF: Horizontally polarised radiation

Hello group,

It is an "idée fixe" that a horizontal wire must radiate a horizontal polarized EM-wave.
A nice example of a mechanical horizontal construction that radiates a vertical polarized signal is the DDRR antenna.
So a large horizontal topload close to ground will in most cases improve the antenna efficiency (reduce the loss resistance ... footprint theory) but the radiated signal will be nevertheless mainly vertical polarized.

73, Rik  ON7YD

At 17:47 5/01/2004 +0100, you wrote:
 
Rik
I agree with your observations. Some are being misled by computer modelling and antenna theory not applicable to the type of small LF antennas used by radio amateurs.
73 de Mal/G3KEV

 
 


 
 


 
 
 
 
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