User's Manual

BT900-Sx Hardware Integration Guide
Intelligent BTv4.0 Dual Mode Module
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36 CONN-HIG-BT900
7.2 Host PCB Land Pattern and Antenna Keep-out for BT900-SA
Dimensions in mm.
APPLICATION NOTES
1. Ensure there is no copper in the antenna ‘keep out area’ on any layers of the host PCB.
Also keep all mounting hardware or any metal clear (Refer to 6.3.2) on of the area to
reduce effects of proximity detuning the antenna and to help antenna radiate properly.
3. For BT900-SA (has on-board chip antenna) best antenna performance, the module
BT900-SA MUST be placed on the edge of the host PCB and preferably in the corner with
the antenna facing the corner. Above “Keep Out Area” is the module placed in corner of