Separate RX and TX antenna

[AlHe]

Is it possible to connected two separated antennas (single ended), one for RX and another for TX communications to the receiver and transmitter of the NRF51 or NRF52?

Thanks!

[Sigurd]

Hi,

Yes, this should be possible by using a RF switch/antenna diversity switch. You can then use PA/LNA control to tell when a TX or RX radio event is coming up, in order to switch between the TX/RX antennas.

Using two antennas for TX/RX is not a normal use-case, so we don’t have any reference design for this.

[Sigurd]

What is the use-case for this? This would increase the complexity, the space needed on the pcb, power-usage and the cost.

[AlHe]

Thank's for your reply!