Active Cooling Aluminum Enclosure For LimeSDR-MINI

#1

Hi Guys, I just pre-launch an active cooling enclosure for the LimeSDR-Mini on CrowdSupply and offical launch next month. If you are looking for an aluminum case that may meet your needs. link:Lime AC Case.

Features

  1. All major chips are connected to the case by 1 mm thick thermal silica
  2. Active cooling (optional, with fan)
  3. Fully shielded - the vulnerable USB socket is especially protected
  4. Compatible with both LimeSDR Mini v1.1 and v1.2
  5. Compatible with LimeSDR USB Type-A (prototyping in progress)

Enclosure for the stand LimeSDR USB Type-A coming soon.

We have finished the design for a Lime AC Case for the LimeSDR Mini. We are currently working on the final design for the case for the LimeSDR USB Type-A. Both size cases will be available for order during this campaign.








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#2

Awsome! When will the release be? Is there any RF tests with and without a case?

#3

Will be released about a month later or maybe earlier.

Not yet do the contrast test for the RF performance. we don’t have the equipment for the accuracy RF test. But according to my real use experience not quite different between the two cases on the RF performance.

Basically there are two factors will affect the RF performance:

  1. We designed the case direct connects to the LMS7002 chip in order to dump more heat, so the shield had to be removed. That will take a negative impact on the RF performance.
  2. The board is full-shield buy the case, so the environment signal won’t affect the board. Consider it a positive impact.

After comprehensive thinking, the final RF performance depends on the board itself (background noise, etc),

#4

I couldn’t say for certain what effect it might have, but the aluminium screening can that is fitted as standard does shield the RF section from other potentially noise generating sections, e.g. USB. So removing the can and sticking the whole thing in another metal enclosure is not guaranteed to have a net benefit in terms of noise.

#5

Thanks for pointing out that. In the mass production, I will add a conductive sponge to connect the top case and the RF shield base, that would form a new RF shielding. I’m not sure it would work as well as the original shield but should be better rf performing than without it.