[Antennas] Elementary Antenna Question

Chris Boone Cboone at earthlink.net
Fri Oct 2 11:00:39 EDT 2009


Remember, a 1/2wl dipole by design is NOT 50 ohms...it is 75 ohms Z.....and
if resonant, would be 75 ohm RESISTIVE..
To cut a dipole where it is 1:1 at 50 ohms means the antenna is NO longer
1/2wl...but IS 50 ohms resonant..If you WANT a true 1/2wl dipole, you WILL
see a 1.4:1 SWR at the lowest point.

"You canna change the laws of physics" - Capt Montgomery Scott

Chris
WB5ITT

> -----Original Message-----
> 
> >>Basically why does the antenna resistance(50 ohms) does not correspond
> >>with
> the SWR dip?
> 
> 



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