strange antennas contest
is the last weekend in May.
I am contemplating using my new roof. I just got a
steel roof on my house. The carport is aluminum. These
surfaces are parallel and about 7 inches apart, and not
connected electrically. The carport is bolted to the
concrete driveway, so it is somewhat grounded at RF. It is
a single story house, so they are both pretty close to the
I cannot imagine the feed point
impedance, but I expect such an antenna would be very
The roof is approximately 10 m x 20
m. The carport is 3.5 m x 14 m.
I have read plenty
about Ufer grounds for DC. However I cannot find anything
on how concrete performs at RF.