[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]
Re: Antenna design
- Subject: [amsat-bb] Re: Antenna design
- From: "Simone T" <terrando@xxxxxxxxx>
- Date: Thu, 31 Jul 2008 14:09:17 +0200
- DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references;bh=9PnQL0LJ2KVE/m21mrcwOnvWVkF/sJGE5m9gaJ4uap4=;b=VtjsQaNJ5wGnfnaFhOyjQbqFezE2KC3fcSWhTkjm/R9Q5FkAVUKSZ1b/FuuShjKGlPeoxstprkZUnZqgwRpTvkjt8C20Byq1O+AjP/69UsEhi0H1XfDmNwwHWX/7YLGrtmnKhhshGQyTwT6yM/jH/7JgCvyl3uo3VGp0T+IEe5s=
Hi,
another method is to use another antenna to form a phased array.
This would contain the length, but will increase the setup complexity, cost,
weigth and "width" (the second antenna must be placed at a given distance
from the first one, typically a quarter of wavelength).
73!
Simone - IW1FYV
2008/7/31 Rosemary & Starr <moffatts@ihug.co.nz>
> Hi All,
> I am thinking of doing some changes to my 2m antenna set up.
> One thing I would like to do is improve the front to back ratio.
> If my memory serves me correctly a second reflector placed behind the first
> reflector will archive this, however if so, this would increase the boom
> length.
> Is there some other method that could be used to improve the front to back
> ratio?
> Thanks.
> 73 Starr ZL3CU
>
> _______________________________________________
> Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
_______________________________________________
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
AMSAT Home