Antenna Patterns In The Etsi Frequency Band - Siemens SIMATIC RF600 Series System Manual

6.8.6.1

Antenna patterns in the ETSI frequency band

Directional radiation pattern ETSI
The directional radiation pattern is shown for nominal alignment and a center frequency of
866.3 MHz. The nominal antenna alignment is given when the antenna elevation is provided
as shown in the following figure.
Figure 6-55 Reference system
The half-power beam width of the antenna is defined by the angle between the two -3 dB
points. Which range (in %) corresponds to the dB values in the patterns can be obtained
from this table (Page 327).
Note that the measurements presented graphically below were carried out in a low-reflection
environment. Deviations can therefore occur in a normally reflecting environment.
SIMATIC RF600
System Manual, 11/2018, J31069-D0171-U001-A21-7618
Antennas
6.8 SIMATIC RF680A
319