Thread: Vincent antenna
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Old December 18th 07, 03:52 AM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
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Default Loading Coils; was : Vincent antenna

Jim Kelley wrote:
Maybe you could give one of those a try.


I'm well aware of what the math models show, Jim.

Let's say we have current probes installed at
'x' and 'y' in a 1/4WL wire. 'x' and 'y' are
30 degrees apart.

We apply a standing wave with the equation
I(xt) = Imax*cos(kx)*cos(wt)

source------------x---------------y-------------open

What will be the relative phase difference between
the current measured at 'x' and the current measured
at 'y'?

Now apply a traveling wave with the equation
I(x,t) = Imax*cos(kx+wt)

source------------x---------------y-------------load to ground

What will be the relative phase difference between
the current measured at 'x' and the current measured
at 'y'?
--
73, Cecil http://www.w5dxp.com