Civil Engineering Reference
In-Depth Information
Figure 14.19
Typical drag force coefficients
for mobile telephone antenna elements.
Figure 14.20
A group of mobile telephone
antenna elements on a triangular frame.
Sometimes up to nine antennas are grouped together on a triangular frame, as shown in
Figure 14.20. For the case shown, the antennas on a single face are well separated to
avoid large aerodynamic interference effects, but those at the corners may experience
slight increases in drag due to mutual interference (Section 4.3.1, and Marchman and
