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AWR1443BOOST: Bistatic mode of operation

Maxim Rykunov
Intellectual 350 points
Part Number: AWR1443BOOST
Other Parts Discussed in Thread: AWR1243

Dear ,

Please advice or redirect as I could not find a relevant thread.

Is it possible to use any of your radars (1243, 1443, 1642, 1843, 6843) in a bistatic mode. Meaning that having two radar system where 1 radar only transmit and the other is receiving? And also is it possible to make a single radar working only in transmitting or receiving mode?

Thank you

Regards

Maxim 

  • 0
    TI__Genius 15005 points
    Hi Maxim,

    You can configure a single radar to work as only a transmitter or only a receiver - there is no restriction in the configuration.

    For having a two radar system where one transmits and the other receives, note that if you use two independent radars, the LO is not common.

    The AWR1243P supports cascading of two or more radar chips with the master chip providing a common LO to itself and all slave chips. In such a system, you will be able to have one radar only transmitting and another only receiving.

    Please refer to our application note on cascading (available here: www.ti.com/lit/an/swra574a/swra574a.pdf)

    Note that at this time, we do not have a reference design for cascaded radar.

    Best Regards,
    Anand
  • 0 in reply to Anand Gadiyar
    Intellectual 350 points

    Hi Anand,

    Thanks for reply.
    So the only way to have such a system is with AWR1243 and, correct me if I'm wrong, the setup would be:
    1 master chip, which provides LO to slaves, some of slaves will be transmitting and some receiving (and there is no LO between them).

    What if there is a significant distance between TX and RX slaves, this could introduce delays on LO I guess?
    Any solutions for this available?

    Thank you
    Best

  • 0 in reply to Maxim Rykunov
    TI__Genius 15005 points
    Hi Maxim,

    Your description of the setup is correct, except for one small point: the master could also be transmitting or receiving; it's not just the slaves.

    The LO distribution network needs to be carefully designed on the PCB to make sure that the path lengths are length matched.

    Again, I refer you to the application note which provides more information on this.

    Best Regards,
    Anand