Ublox RCB-F9T, Руководство по интеграции

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RCB-F9T - Integration manual
Parameter Specification
Minimum gain
2
17 dB
Maximum gain
2 50 dB Active antenna recommendations
Noise figure <4 dB
Group delay variation in-band
3 4
10 ns max at each GNSS system bandwidth. Note:
Inter-signal requirement 50 ns max.
Out-of-band rejection 40 dB typ
L1 band antenna gain
5 1559 - 1606 MHz:
3 dBic typ.
L2/E5b band antenna gain
5 1197 - 1249 MHz:
2 dBic typ.
L5/E5a band antenna gain
5
1166 - 1186 MHz:
2 dBic typ.
Polarization RHCP
Axial ratio 2 dB max, at
Zenith
Antenna element specification
Phase center variation <10 mm over
elevation/azimuth
EMI immunity out-of-band
6
30 V/m
ESD circuit protection 15 kV human body model air discharge
Table 23: Antenna specifications for RCB-F9T modules
The antenna system should include filtering to ensure adequate protection from nearby
transmitters. Take care in the selection of antennas placed close to cellular or Wi-Fi transmitting
antennas.
4.4 EOS/ESD precautions
To avoid overstress damage during production or in the field it is essential to observe strict
EOS/ESD/EMI handling and protection measures.
To prevent overstress damage at the RF_IN of your receiver, never exceed the maximum
input power as specified in the applicable data sheet [
1 ].
When integrating GNSS receivers into wireless systems, pay special attention to electromagnetic
and voltage susceptibility issues. Wireless systems include components which can produce
Electrostatic Discharge (ESD), Electrical Overstress (EOS) and Electro-Magnetic Interference (EMI).
CMOS devices are more sensitive to such influences because their failure mechanism is defined by
2
Including passive losses (filters, cables, connectors etc.)
3
GNSS system bandwidths: B1I 1559… 1563 MHz; L1,E1,B1C 1573… 1578 MHz; L1OF 1598… 1606 MHz; E5b,B2I
1192… 1212 MHz; L2C 1223… 1231 MHz; L2OF 1242… 1249 MHz
4
GNSS system bandwidths :
ZED-F9T-00B: B1I 1559…1563 MHz; L1,E1,B1C 1573…1578 MHz; L1OF 1598…1606 MHz; E5b,B2I 1192…1212 MHz;
L2C 1223…1231 MHz; L2OF 1242…1249 MHz
ZED-F9T-10B : B1I 1559…1563 MHz; L1,E1,B1C 1573…1578 MHz; L1OF 1598…1606 MHz; L5,E5a,B2a 1166…1286
MHz
5 Measured with a ground plane d=150 mm
6
Exception L1,L2 bands +/- 200 MHz, emphasis on cellular bands
UBX-22004121 - R01 4 Design Page 55 of 64
C1-Public Early production information