Information about Main and auxilary antenna on Colibri iMX6ULL 512MB Wi-Fi / Bluetooth IT | V1.1A

Hi,

We are using Colibri iMX6ULL 512MB Wi-Fi / Bluetooth IT | V1.1A SOM. We have query regarding Main and Auxiliary antenna on Wifi+BT chip.

When to use these two antennas?

You should always use both antennas.

@dominik.tx : Right but what is significance for using both the antennas? what are the differences between two antennas?

WiFi chip is designed to operate in 2x2 mode, therefore it uses both antennas. For more information about wifi with multiple spatial streams please refer to IEEE 802.11n-2009 specification.