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[TowerTalk] about four square antenna

To: <towertalk@contesting.com>
Subject: [TowerTalk] about four square antenna
From: <wghsend@sohu.com>
Date: Tue, 1 Mar 2005 20:42:15 +0800 (CST)
List-post: <mailto:towertalk@contesting.com>
i want to ask one question about four square antenna.

the reactance of the series element of the L network Xs=Zcoax^2 and the 
reactance of the parallel element of the L network Xp=Zcoax^2/(X1-R1).Zcoax is 
characteristic impedance of the quarter-wave feed lines.
why use the two formulas? and how to get the two formulas? 

thanks!
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