Chapter 1 Aerohive AP330 and AP350
16 Aerohive
Figure 6 Directional antenna patterns
Omnidirectional Antennas
You typically orient omnidirectional antennas vertically, positioning them on all devices in the same
direction. Omnidirectional antennas create coverage areas that can be toroidal (doughnut-shaped) or
cardioid (heart- or plum-shaped), broadcasting to the sides much more effectively than up or down (see
Figure 7). In general, this is good for most office environments because you have large flat floors. However, it
can be a problem in environments with high ceilings.
Figure 7 Omnidirectional antenna radiation patterns
Higher gain
Lower gain
(Bird’s eye view)
Patch
antennas
g
er ga
n
Toroidal pattern Cardioid pattern
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