NINA-B3 series - System integration manual
UBX-17056748 - R13
Design-in
Page 38 of 72
C1-Public
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A large ground plane on the host PCB is a prerequisite for good antenna performance.
•
The host PCB shall include a full GND plane underneath the entire module, including the antenna
section. This facilitates efficient grounding of the module.
•
High / large parts including metal shall not be placed closer than 10 mm to the module antenna.
•
At least 5 mm clearance between the antenna and the casing is needed. If the clearance is less
than 5 mm, the antenna performance will be affected. PC and ABS gives less impact and POS type
plastic gives more.
•
The module shall be placed such that the antenna faces outwards from the product and is not
obstructed by any external items in close vicinity of the products intended use case.
Figure 12: NINA-B3x2 with internal antenna
⚠
Take care when handling the NINA-B3x2. Applying force to the NINA-B3x2 module might damage
the internal antenna.
⚠
Make sure that the end product design is done in such a way that the antenna is not subject to
physical force.
NINA-B3x6
–
PCB trace antenna
•
The module shall be placed in the center of an edge of the host PCB.
•
A large ground plane on the host PCB is a prerequisite for good antenna performance. It is
recommended to have the ground plane extending at least 10 mm on both sides of the module.
See
•
The host PCB shall include a full GND plane underneath the entire module, with a ground cut out
under the antenna according to the description in
•
The NINA-B3x6 has 4 extra GND pads under the antenna that need to be connected for a good
antenna performance. Detailed measurements of the footprint including this extra GND pads can
be found in the NINA-B3 series data sheet
•
High / large parts including metal shall not be placed closer than 10 mm to the module’s antenna.
•
At least 10 mm clearance between the antenna and the casing is needed. If the clearance is less
than 10 mm, the antenna performance will be affected. PC and ABS gives less impact and POS
type plastic gives more.
•
The module shall be placed such that the antenna faces outwards from the product and is not
obstructed by any external items in close vicinity of the products intended use case.
