IWR6843: Sensitivity and Performance Comparison Between IWR6843ISK and IWR6843AOP

Spark

Part Number: IWR6843

Tool/software:

Hi there,

I am exploring the IWR6843ISK and IWR6843AOP radar modules for my application, and I have a couple of questions regarding their performance:

Given that the IWR6843ISK has a lower field of view (FOV) compared to the AOP version (IWR6843AOP), does this result in better sensitivity or overall detection performance?
Would using custom antennas improve the performance further, and are there specific considerations or recommendations for designing such antennas for the IWR6843ISK?

Thank you for your guidance and support.

Best regards,
Ed

7 months ago

0 Swarnendu Chattopadhyay 7 months ago

TI__Expert 3570 points

Hi,

Please allow us a couple of days to get back to you on this.

Thanks,

Swarnendu

0 Swarnendu Chattopadhyay 7 months ago

TI__Expert 3570 points

Hi,

Please refer to the below document for the RF PCB design guide:

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

Sensitivity or detection performance is not only dependent on the FoV. It strictly depends on application. For example, applications requiring higher directivity would prefer lower FoV. If your application requires larger FoV than IWR6843AOP could be a better choice.

Whether custom antenna would perform better or not strictly depends on the antenna design. You can refer to the IWR6843ISK/IWR6843ODS EVM antenna design.

Thanks,

Swarnendu

0 Spark 7 months ago in reply to Swarnendu Chattopadhyay

Prodigy 80 points

Hi,

Thank you very much for the guide!
I’m also curious to know if the IWR6843AOP supports beamforming. Would it be possible to use beamforming to reduce the FoV in the elevation angle?

If so, could you provide some hints or guidance on how to adjust the elevation limits, for example, reducing them from ±60° to ±30° by using beamforming?

Best regards,
Ed

0 Swarnendu Chattopadhyay 7 months ago in reply to Spark

TI__Expert 3570 points

Hello Ed,

Please find the required resources in the below link:

https://dev.ti.com/tirex/explore/node?node=A__Ae1fZtu5IQ4Oh-KMmxwm2Q__radar_toolbox__1AslXXD__LATEST

Thanks,

Swarnendu.

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IWR6843: Sensitivity and Performance Comparison Between IWR6843ISK and IWR6843AOP