Datasheet

Datasheet [Page 21]
EMW3166
4. Antenna information
Type of antenna 4.1
There are three types of antenna include PCB antenna, external antenna and antenna pad. The default type is PCB
antenna. Users can modify the antenna type with the method below but MXCHIP would not take any responsibility
for this behavior.
EMW3166 loads the resistance (0Ω/0402) in the red box, it means user can use PCB antenna. If user wants to use
U.F.L RF connector for external antenna, just need switch the resistance from red box to blue box and solder an
U.F.L RF connector. If user switches the resistance from red box to yellow box, user can use antenna pad (pin 41).
Type of antenna:
Figure 6 EWM3166-P
Figure 7 EMW3166-E
Figure 8 EMW3166-B
Minimizing radio interference 4.2
When integrating the Wi-Fi module with on board PCB printed antenna, make sure the area around the antenna end
The resistor
connects the
module pin 41