Siemens SIMATIC RF600 Series System Manual page 107

Overview of the antenna parameters
Table 5- 7
Azimuth section
Elevation section
Typical antenna gain
in the frequency band 865 to 868 MHz
Antenna axis ratio
You will find more information on the antennas in the section "Guidelines for selecting RFID
UHF antennas (Page 51)".
Antenna diagram for RF615R (FCC)
The following radiation diagrams show the directional characteristics of the internal antenna
of the RF615R (FCC) reader. For the spatial presentation of the directional characteristics,
the horizontal plane (azimuth section) as well as the vertical plane (elevation section) must
be considered. This results in a spatial image of the directional radiation pattern of the
antenna.
Figure 5-6 Reference system
SIMATIC RF600
System Manual, 11/2018, J31069-D0171-U001-A21-7618
Maximum linear electrical aperture angle at 865 MHz:
Readers
5.2 SIMATIC RF615R
Polarization (circular)
100°
100°
-1 dBi
2 dB
107