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Old October 14th 03, 02:56 AM
Serge Stroobandt, ON4BAA
 
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"Art Unwin KB9MZ" wrote in message
m...
Cecil Moore wrote in message

...

Cecil


I do like the dipole overlay on the vertical pattern on your
page.Actualy I enjoyed the whole page
Makes you wonder why all people don't use horizontal
polarisation to get away from ground losses.


This conversation is starting to get interesting :-)

INVERTED GROUNDPLANES:
What about using an inverted 1/4wave groundplane in order to avoid ground
losses?
Then you have the high impedance point of the antenna close to the lossy
(low impedance) earth.
Due to the severe mismatch less power will couple into the earth.

The low impedance point (feed point) of the antenna is safely high up in the
(high impedance) air then.


--

73 de Serge ON4BAA - HB9DWU
http://salsawaves.com/propagation/


 
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