6.7

PCB layout guidelines

The SPBT3.0DP2 module require proper placement on PCB to ensure optimal performance. The antenna on the

PCB has an omnidirectional radiation pattern. To maximize antenna efficiency, an adequate grounding plane must

be provided under the module, respecting the distance for the antenna clearance.

The position of the module on the host board and overall design of the product enclosure contributes to the

antenna performance. Poor design can limit the antenna radiation patterns and can result in reflection, diffraction,

and/or scattering of the transmitted signal thus limiting the useful operating range.

Basic guidelines:

•

Never place the ground plane or route copper traces directly underneath the antenna portion of the module

•

Keep a 6 mm clear zone surrounding the antenna (no ground planes, no traces)

SPBT3.0DP2

PCB layout guidelines

DS11599 - Rev 7

page 18/31