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MMWCAS-RF-EVM: sensing estimation

Ryan Sarver
Intellectual 540 points
Part Number: MMWCAS-RF-EVM
Other Parts Discussed in Thread: AWR2243, TIDEP-01012

I'm very curious about this relatively new option you're offering with the cascaded antennas, but other than the product description which seems to indicate that better results can be achieved than with a single antenna, I'm wondering if there are any tools available to quantify that?

Specifically, with other radar modules I've found the Sensing Estimator tool helpful for understanding how different input parameters affect the achievable max detectable distance and min detectable RCS, but since that tool doesn't support this cascaded module, do you have any suggestions for how to get a similar idea of what's achievable with it? For example, is there a way to extrapolate the results from using the Sensing Estimator tool with a single AWR2243?

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    TI__Mastermind 31680 points

    Hello Ryan,

    In general, cascading provides more number of virtual receive channels which drastically improves the angular resolution. The below app note will provide details on how this scales with number of virtual receive channels:

    .

    Cascading also improves the maximum detectable range due to increased antennas.

    In addition to that, you might want to take a look at the TIDEP-01012 design guide, which briefly talks about the key specification features achieved.

    I will also keep this thread open to the community in case they want to add something to this.

    Hope this was somewhat useful to you.

    Regards,

    Ishita