[Top] [All Lists]

[TowerTalk] Fwd: Isolated Mode Antenna Technology

Subject: [TowerTalk] Fwd: Isolated Mode Antenna Technology
Date: Mon, 21 Dec 2009 11:03:27 -0500
List-post: <">>
 Trying to dechiffer the formula with my rather rusty knowledge, I see a 
radiating system (yes, antenna) there you, by exiting the conductors in 
different places manage to generate two different antennas that are isolated 
from each other. Not that hard to understand. You, probably have two dipoles 
(as the antenna is small) that radiates to different polarizations. You have 
the same thing with two crossed yagies or two helix with different rotations. 
As they radiate two different field (AKA orthogonal fields) they don't interact 
and are therefore isolated from each other even if they occupy the same area.

I tried something similar (many years ago with a repeater antenna there I tried 
to isolate the transmitter and receiver antennas from each other. I was only 
successful to get some 15 dB isolation at best.)

I am sure the cell phone gadget manufacturer will adopt this antennas as is 
show (at least on paper) some improvements.

73 de Hans - N2JFS



-----Original Message-----
From: Bill Aycock <>
To: Steve Sacco NN4X <>;
Sent: Sat, Dec 19, 2009 8:03 pm
Subject: Re: [TowerTalk] Isolated Mode Antenna Technology

Is it just my ignorance, or does this "description" make no sense?I read it 
more than once, and tried to look up some words I did not recognize in the 
Wikipedia and the Wictionary. (I got MIMO, but meanderline escaped me)  I 
have rarely seen a paper (Supposed to be Technical) that used more words and 
explained less than the one included as an example. There was one mystical 
equation and some figures, but nothing to say what was happening. There was 
one sketch of a device with labeled parts, but no explanation.
WHEW! Help me.

----- Original Message ----- 
From: "Steve Sacco NN4X" <>
To: <>
Sent: Saturday, December 19, 2009 12:28 PM
Subject: [TowerTalk] Isolated Mode Antenna Technology

> This seemed like an interesting concept.  I thought I'd pass it along.
> Isolated Mode Antenna Technology lets a single antenna offer the
> performance benefits of multiple antennas (Part 1 of 2)
> <;jsessionid=F1SQHL23DOWTNQE1GHPCKHWATMY32JVN?articleID=222001586>
> 73,
> Steve
> NN4X
> _______________________________________________
> _______________________________________________
> TowerTalk mailing list


TowerTalk mailing list


TowerTalk mailing list

<Prev in Thread] Current Thread [Next in Thread>