[Elecraft] EH Antenna Patent

Wed Feb 26 03:40:01 2003

George wrote:

What is "E-only" or "H-only" radiation?

I think Maxwell is a bit out-or-date George, Poynting is the new fashion.

E=Electical H=Magnetic. I was paraphrasing the patent, doesn't mean I know
what it means!  Take a look yourself and also look up "Poyntng Vector " on
Google.

Regards

Tony
M3CJF
G7IGG

All mail in and out checked lovingly by hand, character by character.

----- Original Message -----
From: "George, W5YR" <[email protected]>
To: "Larry Weaver" <[email protected]>; <[email protected]>
Sent: Wednesday, February 26, 2003 6:49 AM
Subject: RE: [Elecraft] EH Antenna Patent

> What is "E-only" or "H-only" radiation?
>
> From the words of the popular song, Maxwell says " You can't have one
> without the other!"
>
> 73/72, George
> Amateur Radio W5YR -  the Yellow Rose of Texas
> Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
> "In the 57th year and it just keeps getting better!"
>
>
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Larry Weaver
> Sent: Tuesday, February 25, 2003 7:26 AM
> To: [email protected]
> Subject: Re: [Elecraft] EH Antenna Patent
>
>
> At 02:06 AM 2/25/2003, Tony Wells wrote:
> >There are two other claims in the patent which I think are very important
> to
> >test. Firstly on RX the antenna is supposed to be deaf to E-only
radiation
> >and H-only radiation. Therefore the ant is supposed to have good immunity
> to
> >man-made electrical interference. Some testers have reported that fact.
>
> Whether the E-only/H-only explanation is correct or not, the receive
> enhancement is certainly possible on bands limited by external noise. I
use
> my tribander for receiving on 160 & 80 and sometimes on 40. The signal
> strength is much less but the signal-to-noise is often much better than on
> either a resonant dipole or vertical.
>
> 73...Larry N6TW
>
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