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:
tuned ground plane
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November 19th 04, 03:06 AM
John_F
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You want ODD multiples of 1/4 wave for the ground plane like 1/4, 3/4
etc from the center antenna rod to the Ground plane edge. NOT even
like 1/2.
On 17 Nov 2004 19:30:44 -0800,
(John Tvedte) wrote:
I have a Velocity - and am planning on using a Comant CI-105
transponder antenna, and place it out on the wing strake area - as I
do not want it close to the engine and near my AHRS setup.
As this airplane is a glass airplane, and this antenna requires a
ground
plane - I have read about a "tuned" ground plane.
The suggestion was to make a 5.2" disc - @1090Mhz, 1/2 wave is
5.15229..."
Can someone give me a heads up as to what a tuned ground plane really
is?
Thanks,
John
John_F