BUDDIPOLE IN THE FIELD

Antenna deployment
Far field elevation plot
Figure 21 10m antenna with second element drooping at 150 degrees
Examine Figure 21 and note the large null at the 45 degree angle on the
left side of the far field plot. In fact, the whole side away from the
drooping lower element is down from 8 dB to 15 dB from the power
predicted for the right side of the antenna (with the drooping element).
Adding a second sloping element on the opposite side of the first yields
results as illustrated in Figure 22. The addition of the second lower
element changes the pattern significantly, eliminating the deafness on the
left side of the antenna. The maximum gain for the antenna was nearly
unchanged. The second element simply eliminated losses. In other
words, assuming this extra element was just a wire, running that wire
cost us next to nothing in the relative gain of the antenna, but it
eliminated losses and restored full sensitivity on all sides. But, is it still a
vertical dipole in this configuration? It looks more like a vertical with a
bad radial system (at least to the author).
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