IP3 of Cryo-LNA?

This may not be the right place for this question but
if somebody knows more than I about cryogenic low noise
amplifier I will be very grateful for an answer.

Cooling of a receiver front end to e. g. 77K
gives a huge reduction of the noise temperature.
This mean extend the dynamic range of a
receiver at the low power side.
 
Is there a change in the dynamic range at the
high power side, e. g. how is the influence
on the third order intercept point of a low
noise amplifier?
In which region can I expect IP3 (maybe 0dBm) ?

Many thanks.

Arndt Pischke
Ericsson Eurolab Deutschland
arndt.pischke_at_eedn.ericsson.se
Received on Wed Nov 15 1995 - 03:00:00 EST