3.2 Bluetooth WLAN daughter board bloc diagram
3.3 Mechanical aspects
This board will be mounted on other boards. So we can make it wit h a dongle or directly mounted
on board.
For radiofrequency propagation reasons, the antenna area must not cover any copper plane.
For industrial reasons, the board must lay on the CPU board on at least 2/3 of it’s surface.
Examples of implementation follow:
=
+
=
+
Another alternative, best is:
=
+
Copper
OK
No copper
under antenna
L
L/3
max
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