Data Sheet

FSCBW226Datasheet
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AsindicatedinFigure below, RFcriticalcircuitsofthemoduleshouldbeclearlyseparatedfromanydigitalcircuitson
thesystemboard.AllRFcircuitsinthemoduleareclosetotheantennaport.Themodule, then,shouldbeplacedin
thiswaythatmoduledigitalparttowardsyour
digitalsectionofthesystemPCB.
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Figure14:PlacementtheModuleonaSystemBoard
9.3.1AntennaConnectionandGroundingPlaneDesign
Figure15:Leave5mmClearanceSpacefromtheAntenna
Generaldesignrecommendationsare:
Thelengthofthetraceorconnectionlineshouldbekeptasshortaspossible.
Distance between connection and ground area on the top layer should at least be as large as the dielectric
thickness.
RoutingtheRFclosetodigitalsectionsofthesystemboardshouldbeavoided.
To reduce signal reflections, sharp angles in the routing of the micro strip line should be avoided. Chamfers or
fillets are preferred for rectangular routing; 45degree routing is preferred over Manhattan style 90degree
routing.