[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]
Re: Circularly Polarized Yagi Sense?
- Subject: Re: [amsat-bb] Circularly Polarized Yagi Sense?
- From: "SV1BSX" <sv1bsx@xxxxxxxx>
- Date: Tue, 23 May 2006 03:27:59 +0300
- DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.gr; h=Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=J0NmcUy9ur5Rtrmm52SXwPQ02UHXYu8UmWzNmBGwcUu+43hneiMwmvzd7tEES3aZWYeoqSLyzc16QzhQkdXP/18mLSOX6MQJQhUlN1V6rGfqveGpNbjQODfhrDgUpvwh0/jKx+NRlH9MyHieO7yVyGIz9/mOJKmJ5wzuQoa7hDU= ;
take a look:
http://www.qsl.net/sv1bsx/antenna-pol/polarization.html
73, Mak
----- Original Message -----
From: "Mark Brueggemann K5LXP" <brueggemail-k5lxp@yahoo.com>
To: <amsat-bb@amsat.org>
Sent: Monday, May 22, 2006 9:27 PM
Subject: [amsat-bb] Circularly Polarized Yagi Sense?
> I've built a set of circularly polarized antennas by taking two
> coplanar yagis and feeding one of the driven elements 90 out of phase
> with the other, using a phase delay line and a coaxial relay to switch
> from left to right hand CP, per the Antenna Handbook.
>
> Now, how does one determine the sense (RH/LH) based on which element is
> fed with the 90 degree delay? The only reference I've found is the
> IEEE definition of "clockwise polarization for a receding wave as
> right-hand", but that doesn't help with my question. What's the rule
> of thumb to know if I'm RHCP or LHCP based on which element the 90
> degree delay is applied to?
>
> Mark K5LXP
> Albuquerque, NM
> ----
> Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
> Not an AMSAT member? Join now to support the amateur satellite program!
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
>
__________________________________________________
×ñçóéìïðïéåßôå Yahoo!;
ÂáñåèÞêáôå ôá åíï÷ëçôéêÜ ìçíýìáôá (spam); Ôï Yahoo! Mail äéáèÝôåé ôçí êáëýôåñç äõíáôÞ ðñïóôáóßá êáôÜ ôùí åíï÷ëçôéêþí ìçíõìÜôùí
http://mail.yahoo.gr
----
Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
AMSAT Home