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