ESP32 separate antennas for BT and WIFI

[chrisso]

Hi All

Is it possible to have the BT and the WIFI go through separate antennas, for example, the BT using a PCB antenna and the Wifi to a SMA connector?

Thanks

Chris

[WiFive]

You could use an external rf switch like pycom boards do and have separate WiFi or Bluetooth modes not simultaneous operation.

[ESP_Sprite]

Well, WiFi and BT actually even use the same power amp and LNA internally (and share parts of the PHY as well, if memory serves) so theoretically the only way to do it is to have an external antenna switch, software-actuated when the chip switches protocols. But if I may ask: Why would you? Both are 2.4GHz protocols, both can use the same antenna just fine.

[WiFive]

Why would you?

The only reason I can think of is the desire to localize or reduce interference on Bluetooth signals but have larger gain on wifi.

[chrisso]

Thanks

I need one set of signal to go through a directional antenna.