Siemens SIMATIC RF600 Series System Manual page 188

Readers
5.5 SIMATIC RF685R
Radiation diagram (circular)
Figure 5-42
Overview of the antenna parameters
Table 5- 42
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)".
188
Circular section
Maximum linear electrical aperture angle at 915 MHz:
Polarization
Linear vertical Linear horizontal
74° 64°
70° 78°
5 dBi 3 dBi
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System Manual, 11/2018, J31069-D0171-U001-A21-7618
Circular polariza-
tion
73°
68°
5 dBi
2 dB
SIMATIC RF600