[Antennas] RE: capacitors on dipole

Fri, 07 Nov 2003 19:17:26 -0800

What would happen if, on the down drop one added an inductor or a capacitor?

I have been told that the inductor needs a length of wire after it but the capcitor 
does not.  Is the linear loading both inductor and the capacitor or what?  Electrical 
length may be increased by different means but what does such do to the efficiency 
and the band width?

I ran across an antenna on the net were the author of such used coax to reduce the 
physical length.  I questioned what would happen. 

What c0mment arise from these?

Chris opr VE7HCB

From:           	"Merv Stump" <[email protected]>
To:             	"'Robert Lay'" <[email protected]>, "'Hart Engel'" <[email protected]>,
  	<[email protected]>
Subject:        	RE: [Antennas] RE: capacitors on dipole
Date sent:      	Fri, 7 Nov 2003 11:20:15 -0500

> Hart, I agree with Bob.  However, a couple of things I would point
> out. If you drop the ends down as he suggests you will find that this
> antenna is electrically short compared to what you thought it would
> be.  For example, if you want the antenna to look 5 feet longer than
> it is, you may have to add 6 feet if it is to be dropped down. 
> Secondly, if you only need to lengthen the antenna a little bit, try
> using insulated wire.  You will find that insulated wire is 2% to 3%
> electrically longer than uninsulated.
> 
> Regards, Merv
> 
> 
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