IWR1843BOOST: Unit function on IWR1843BOOST board

Hello,

That is a coupon structure for measuring the etching tolerance of the antenna structures for evaluating the manufacturer capabilities.

You can read some more about it in the below app note or if you search 'coupon' on this forum you can find some additional threads about it.

https://www.ti.com/lit/an/spracg5/spracg5.pdf

Regards,

Adrian