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FIBOCOM SU806 Series Hardware Guide
Page 61 of 91
4.2.2 WIFI/BT Antenna Reference Design
WIFI/BT antenna reference design is shown in the following figure:
ANT_WIFI/BT
WIFI/BT_Antenna
NC
0R
NC
Figure 4-2 WIFI/BT antenna reference design
4.3 GNSS Antenna
GNSS supports GPS/BeiDou.
Table 4-6 GNSS antenna interface definition
Pin Name
Pin Number
I/O
Description
Note
ANT_GNSS
121
AI
GNSS antenna
-
4.3.1 Operating Frequency
Table 4-7 GNSS operating frequency
Mode
GPS
1575.42±1.023
MHz
BeiDou
1561.098±2.046
MHz
4.3.2 GNSS Antenna Reference Design
4.3.2.1 Passive Antenna Reference Design:
SU806 series module have a built-in LNA. The passive antenna is used in the design of the device.
Microstrip trace is recommended for the GNSS RF route, with insertion loss within 0.2dB and impedance
at 50
Ω.