Antenna Patterns In The Fcc Frequency Band - Siemens SIMATIC RF662A Operating Instructions Manual

Antenna patterns

5.3 Antenna patterns in the FCC frequency band

5.3 Antenna patterns in the FCC frequency band
Directional radiation pattern FCC
The directional radiation pattern is shown for nominal alignment and a center frequency of
915 MHz.
Figure 5-4 Reference system
The half-power beamwidth of the antenna (opening angle) is defined by the angle between
the two -3 dB points (corresponding to half the power in relation to the maximum power).
The range (in %) corresponding to the dB values in the patterns can be obtained from the
table in the section "Interpretation of directional radiation patterns (Page 22)".
Note that the measurements presented graphically below were carried out in a low-reflection
environment. Deviations can therefore occur in a normally reflecting environment.
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Operating Instructions, 12/2022, C79000-G8976-C684-01
SIMATIC RF662A