SAM-M8Q - Hardware Integration Manual
UBX-16018358 - R05 Production Information Design
Page 11 of 23
Paste mask
Stencil thickness: 120 µm
Orange: Pad
Grey: stencil opening
Figure 5: Suggested pad layout and occupied area, top view
Figure 6: Paste mask detail for each pad
2.4 Antenna
SAM-M8Q GNSS patch antenna module is designed with an integrated GPS/Galileo/GLONASS patch antenna.
Antenna input
The module has an embedded GNSS patch antenna and a SAW band-pass filter before LNA, which provides
excellent protection against out-of-band GNSS blocking caused by possible near-by wireless transmitters. The
signal is further amplified by the internal Low Noise Amplifier (LNA) inside u-blox’s UBX-M8030 GNSS chip.
Be sure to comply with special PCB layout design rules to ensure proper embedded antenna operation
when the customer PCB is used as part of antenna. This requires solid ground plane around the module,
see the section 2.6 for PCB layout suggestions.
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