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Original question:

AWR1642BOOST: Field of View

AWR1642BOOST: How does the radar operate?

user4302456
Intellectual 530 points
Part Number: AWR1642BOOST


Hi, I am trying to find out how this document determines the field of view of the radar and how the radar determines which transmitter is on.

On page 12 in this PDF: https://www.ti.com/lit/ug/swru508b/swru508b.pdf

It shows the radiation pattern for the transmit and receive antennas, but it does not tell us how the radiation pattern is measured (1 transmitter vs. 2 transmitters or # of receivers turned on). Any information on this will be appreciated,

Thanks

  • 0
    TI__Guru 58035 points

    Hello,

    The radiation pattern is on the antenna, not specific to Tx or Rx. Its measured using HFSS simulation tool but stimulating the feed point of the antenna using a signal and measuring the EMI field at different angles in the tool

    regards,

    Vivek

  • 0 in reply to Vivek Dham
    Intellectual 530 points

    Hello,

    I thought the radar uses MIMO antennas but it sounds like the antennas do not transmit independently from each other. Instead it sounds like both patch arrays transmit at the same time. Is that correct? And is there a place I can get the simulation to see how the radiation pattern is modeled? They seem different than how they are explained in the user guide.

    Thanks

  • 0 in reply to user4302456
    TI__Guru 58035 points

    Hello,

    You could configure the MMIC to transmit in MIMO or non MIMO mode. The number of transmitters transmitting at the same time depends on how many transmitters you have enabled in the chirp config. If you enable 1 Tx in the chirp then only one would transmit, if you enable 2 then both would transmit at the same time.

    The patterns shown in user guide is with single antenna at a time.

    Regards,

    Vivek

  • 0 in reply to Vivek Dham
    Intellectual 530 points

    Okay that was what I was wondering.

    Thanks