BOOSTXL-AOA: Due to RF switching delay, do we need to add some compensation offset on I/Q samples from each antenna?

ladawan klinkusoom

Prodigy 170 points

Part Number: BOOSTXL-AOA

Do we need to add some compensation phase offset on I/Q samples from each antenna due to RF switching delay?

(I am using BOOSTXL-AOA)

Thank,

Lada

over 3 years ago

0 Clément over 3 years ago

TI__Guru** 100800 points

Hi Lada,

The RF switching delay (i.e. the time required for the RF switches to stabilize their output) does not have an impact on the signal's phase.Only the lengths of the different RF path have an impact - and the software already handle these.

The RF switching delay only has consequences on the data to consider. The software should not use data collected while the RF switch output is not stabilized. That being said, this is already taken into account - this is why sampling slots alternate with switching slots. You may want to review our documentation for more details.

I hope this will help,

Best regards,

0 ladawan klinkusoom over 3 years ago in reply to Clément

Prodigy 170 points

So, it's mean I can calculate phase diff by using i/q of ant0 at time t and i/q of ant1 at time t+delta?

(delta = RF switching delay time)

0 Clément over 3 years ago in reply to ladawan klinkusoom

TI__Guru** 100800 points

Hi,

Yes, this is correct. Please refer to the documentation for details on the IQ samples that should used and discarded.

Regards,

Bluetooth®︎

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BOOSTXL-AOA: Due to RF switching delay, do we need to add some compensation offset on I/Q samples from each antenna?