[Ground-station] Temperature testing resources for antennas?

[Kerry Banke]

 I agree. Not sure what one can readily test over that temperature range in a very  small chamber. As Drew stated maybe mechanical viability over temperature is enough but I think it would be nice to know something doesn't disconnect electrically  or act up at the extremes (or on the way there). Perhaps measuring the return loss and some kind of very near field signal strength monitoring could be done over what ever temp range one can arrange. Dry Ice can get you to about -79C. Don't know how to go colder other than  with say liquid Nitrogen at -196C. Going hot is easy.
    On Thursday, July 2, 2020, 11:15:19 AM PDT, Drew Arnett <arnett.drew at gmail.com> wrote:  
 
 Can you say OK by design per mechanical stability over temperature due
to known material properties?  Maybe cycle a few times without doing
electrical measurement at the same time to see if anything works
loose?  (accelerated lifetime test)

Running an entire anechoic over temperature is challenging.  Not the
first time I've heard the question.

Indoor or OAT range and something like a thermostream?

Drew
n7da

On Thu, Jul 2, 2020 at 5:06 PM Michelle Thompson
<mountain.michelle at gmail.com> wrote:
>
> Anyone have access to any type of temperature chamber, anywhere to test some antennas?
>
> For Gateway, temp range is expected to be -200 to +160 C.
>
> I'd like to get any results, even if it's "only" industrial range, for the antennas that we currently have in hand for 5 GHz/10 GHz.
>
> This would start to produce results that could be compared to later results, when the revisions of the designs for Gateway start getting turned into molecules. Showing improvement over temperature is super important and starting now greatly reduces risk.
>
> -Michelle W5NYV
>
>
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