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Old April 17th 07, 04:55 AM posted to rec.radio.amateur.antenna
Sal M. Onella Sal M. Onella is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 442
Default Phase and Gain for Directional Antenna Needed


"junoexpress" wrote in message
oups.com...

I would say that the specifics are not that important. The DGA we
worked with had a cylindrically symmetric gain pattern that resembled
a "skinny" cardiod. The gain at the zenith was about roughly 12 Bic,
which fell to roughly 1 Bic at about 60 degrees (where the angle
measured is not the elevation, but the spherical coord theta). In
fact, you just made me realize that I fit the theta dependence very
well via the equation
0.00002399q^3 - 0.0031083q^2 - 0.025008q+11.0153
and that the phase as a function of theta was very linear, and that
the phase as a function of phi was "about" constant.



What's a Bic?