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

6.6.6.1

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 6-42 Reference system
The half-power beam width of the antenna is defined by the angle between the two -3 dB
points. The range (in %) corresponding to the dB values in the patterns can be obtained from
this table (Page 321).
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, 06/2019, J31069-D0171-U001-A22-7618
Antennas
6.6 SIMATIC RF650A
317