Reason for chosing hemt devices

[dineshmoorthy]

dear sir/ madam

what are the reasons for choosing HEMT devices for microwave operations except mobility of electron and low power?

thank you

 

[vfone]

Lower Noise.
And especially for DSN receivers (Deep Space Network) the cryogenic cooled HEMT are capable of significantly lower noise than any other processes at the same cryogenic temperatures.