Noise Figure of LNA when high-temperature operation

[heritage]

How to get good NF when LNA operate at high temperature?

 

[khouly]

Re: Noise Figure of LNA when hign-temperature operation

measure the Ropt for this temp , and match for this Ropt

khouly

 

[heritage]

Noise Figure of LNA when hign-temperature operation

Thanks.
But I have made NF=NFmin at normal temperature(27C), and I find NF is approximate to NFmin at high temperature(125C). The NF rises
about 0.6dB.

 

[vfone]

If the LNA is operating on both, low and high temperature, one thing that you can do is to make a compromise, and do the NF matching somewhere between temperatures.
Here you can find a table that shows how NF is increasing with temperature.
https://www.satsig.net/noise.htm