IWR6843: Need to protect antenna from moisture

Manoj Wakdikar

Intellectual 525 points

Part Number: IWR6843

Tool/software:

Hi,

I am using IWR6843ISK module. I want to protect antenna from moisture. How can I protect antenna patch form moisture?

Will moisture affect the performance of RADAR or antenna?

Thanks,
Manoj

over 1 year ago

0 Blake Kisshauer over 1 year ago

TI__Expert 4360 points

Manoj,

Yes, moisture on the patch antennas can be problematic.

However, this handy Application Report on Radoms can help you understand how to build an enclosure for your radar to protect it (and it's antennas) from the environment.

https://www.ti.com/lit/an/swra705/swra705.pdf

Best of luck with your design! Feel free to start a new thread if you have any new questions!

Very Respectfully,

Blake

0 Manoj Wakdikar over 1 year ago in reply to Blake Kisshauer

Intellectual 525 points

Hi Blake,

Thank you for your response. One of my module's antenna is affected by moisture on its antenna patch. Can I clean that antenna patch with some solution?

Any suggestions on this?

Thanks,
Manoj

0 Blake Kisshauer over 1 year ago in reply to Manoj Wakdikar

TI__Expert 4360 points

Manoj,

If the patch is currently wet, i would recomend removing the entire EVM from power and baking it in a thermal chabmer to remove moisture. I don't recomend attempting to remove varnish from the silver immersion as that may damage the antenna. Mild corosion shouldn't cause any issue to the device.

Very Respectfully,

Blake.