BLE 5, Thread, Zigbee Modules,BT840X/XE
Ver 1.11 April 2019
17
Mounting BT840X on the Host PCB
The following figure shows recommended mounting of BT840X module on the host PCB.
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For the best Bluetooth range performance, the antenna area of module shall extend 9.8 mm outside the
edge of host PCB board, or 9.8 mm outside the edge of a ground plane.
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The next choice is to place a module on a corner of host PCB, the antenna area shall extend 9.8 mm from
the edge of ground plane. Ground plane shall be at least 5 mm from the edge of the antenna area of
module.
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We don’t recommend mounting BT840X module in the middle of a host PCB.
For the best Bluetooth range performance, keep all external metal at least 30mm from the antenna area.
