Ublox NINA-B1 Series, Руководство по системной интеграции

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NINA-B1 series - System integration manual
UBX-15026175 - R16 Appendix Page 54 of 63
C1-Public
B.1.1 Floor plan
This section describes where the critical components and copper traces are positioned on the
reference design.
Figure 34: NINA-B111 antenna reference design
Reference Part Manufacturer Description
1 NINA-B111 u-blox NINA-B111 module
2 U.FL-R-SMT-1(10) Hirose Coaxial Connector, 0 – 6 GHz, for external antenna
3 Carrier PCB Should have a solid GND inner layer under and around the RF
components (vias and small openings are allowed).
4 RF trace Antenna coplanar microstrip, matched to 50
Ω
5 GND trace (Green) Minimum required top layer GND-trace.
6 Copper keep out (Dark green) Keep this area free from any copper on the top layer.
Table 12: Included parts in the antenna connector reference design
B.1.2 RF trace specification
The 50
Ω
coplanar micro-strip dimensions used in the reference design are stated in Figure 35 and
Table 13. The GND plane beneath the RF trace must be intact.
Figure 35: Coplanar micro-strip dimension specification
Item Value
S See Figure 36
W 280 µm
4
1
5
2
3
6