IWR6843ISK: Beamforming and Beamsteering

Hi Santosh,

  xWR6843 with TX beamforming, it's in the shape of a cone with a 22.5 degree angle to boresight.

  Why is 22.5 degree angle?

  ...

Thanks

BRs

Bruce

Hi Santosh, 

  Yes, I see  22.5 degree cone in the Long Range People Detection demo.

  I'd like to know if 22.5 degree cone is fixed for  xWR6843, so it set  Angle Step Size  to 22.5 degrees.

  I see another example, it also set Angle Step Size  to 22.5 degrees. Angle Step Size  to focus on the angle of [-33.75 -11.25 11.25  33.75]

  https://dev.ti.com/tirex/explore/node?node=A__AE-Bpc-wQfi-OR.2V9TzCw__radar_toolbox__1AslXXD__LATEST&placeholder=true

   if 22.5 degree cone is fixed for  xWR6843, then I need to set  Angle Step Size  to 22.5 degrees even different angle to cover.

Thanks

BRs

Bruce

Hello.

I think its set via the txPhaseShifter and by changing that value you can change the sweep angle if the other parameters are kept the same.

Sincerely,

Santosh

Hi Santosh,

Per "Long Range People Detection User Guide", I get phaseShift.py to calculate phase shift values.

Do you mean if  the cover range is [-20, 0, 20], thetas is 20 degrees.

Then I set txPhaseShifter and the shape of a cone will be 20 degrees. Right?

Thanks

BRs

Bruce