Integration Manual

SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R13 Design-in Page 62 of 119
Additionally, these recommendations regarding the antenna system placement must be followed:
• Do not place the antenna within a closed metal case.
• Do not place the antenna in close vicinity to the end user since the emitted radiation in human tissue is restricted by
regulatory requirements.
• Place the antenna as far as possible from VCC supply line and related parts (refer to Figure 28), from high speed digital
lines (as USB) and from any possible noise source.
• Place the antenna far from sensitive analog systems or employ countermeasures to reduce EMC or EMI issues.
• Be aware of interaction between co-located RF systems since the LTE transmitted power may interact or disturb the
performance of companion systems.