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AWR1843BOOST: 1843BOOST Angular range and resolution

Douglas Knoll1
Prodigy 40 points
Part Number: AWR1843BOOST

In what TI documents are the capabilities of the AWR1843BOOST specified?  I am specifically interested in the angular resolutions in the azimuth and elevation.  Also is the angular FOV defined not only by antenna spacing but also the beamwidth of the antennas (not considering TX beam steering).  Assuming the RX antenna spacing is lambda/2, is the usual figure of merit used in further defining FOV the 3dB beamwidth of the antennas?

Thanks,

Doug

  • 0
    TI__Guru*** 143584 points

    Hi,

    The main document to start with would be the AWR1843BOOST EVM User guide provided on the EVM page.

    Thank you

    Cesar

     

  • 0 in reply to Cesar
    Prodigy 40 points

    This document does not answer my question.  This document gives gain and beamwidth details for the antenna but does not state anywhere what is the minimum (non-ambiguous) AOA that it can discern in either the azimuth or elevation using MIMO. From other documents I know how to calculate these figures, but I want to make sure my understanding of the theory is correct and follows what this board actually does.  Also what confuses me is that it seems like the antenna beamwidth in the elevation is too narrow to take advantage of how the 3 TX antennas are arranged and when MIMO is used.

    Doug

  • 0 in reply to Douglas Knoll1
    TI__Guru*** 143584 points

    Hi,

    The BOOST antenna was designed to provide higher angular resolution in the azimuth than in elevation. This is the reason why the virtual antenna Array has 8 antennae in azimuth and 4 in elevation.

    You are probably familiar with the MIMO Radar appnote:

    https://www.ti.com/lit/an/swra554a/swra554a.pdf

    It explains what the theoretical angular resolution is.

    We don't have an app note that provides detailed measurements of angular resolution.

    Thank you

    Cesar