Siemens SIMATIC RF610T ATEX System Manual page 214

Readers
5.6 SIMATIC RF685R
R R adiation diagram (circular)
Figure 5-47
Overview of the antenna parameters
Table 5- 51
Azimuth section
Elevation section
Typical antenna gain
in the frequency band 902 to 928 MHz
Antenna axis ratio
You will find more information on the antennas in the section "Guidelines for selecting RFID
UHF antennas (Page 51)".
214
Circular section
Maximum linear electrical aperture angle at 915 MHz:
Polarization
Li i near vertical Linear horizon n tal
74° 64°
70° 78°
5 dBi 3 dBi
-- --
System Manual, 06/2019, J31069-D0171-U001-A22-7618
Circular polariza-
t t ion
73°
68°
5 dBi
2 dB
SIMATIC RF600