Rf Traces Note; Rf Traces Layout - SimCom SIM7000 Hardware Design

4.4 RF traces note

4.4.1 RF traces layout

Keep the RF trace from module ant pin to antenna as short as possible
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RF trace should be 50 Ω either on the top layer or in the inner layer
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RF trace should be avoided right angle and sharp angle.
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Put enough GND vias around RF traces.
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RF trace should be far away from other high speed signal lines.
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Figure 29: RF trace should be far away from other high speed signal lines
Avoiding the paroling rout of other system antennas nearly.
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There should be some distance from The GND to the inner conductor of the SMA connector. It
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is better to keep out all the layers from inner to the outer conductor.
Figure 30: The distance between GND to the inner conductor of SMA
SIM7000 _Hardware Design _V1.04
Smart Machine Smart Decision
2018-1-31