It is prudent to angle the antennas 25 to 45 degrees into or away from the
path of travel of the objects traversing the IZ. This will dramatically help you increase
the likelihood of communication with tags as their time in the IZ or the
dwell time of the tag is increased (see Figure 7-3). As discussed earlier, antennas
with lower gains have wider beams and antennas with higher gain have narrower
beams; therefore, you may want to use a lower gain antenna to achieve a
wider beam and longer dwell time if the distance the antenna covers is sufficient.