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Central Development Laboratory

Amplifier performance as of May 1999

NRAO Low-Noise Amplifiers
Frequency Band (GHz)
Measured Amplifier Noise (K) at 20K
Comments
0.290-0.395
2.0
 Balanced
0.385-0.520
2.0
 Balanced
0.510-0.690
2.0
 Balanced
0.680-0.920
3.0
 Balanced
0.910-1.230
3.0
 Balanced
1.15-1.73
3.0
  
1.73-2.60
4.5
  
2.60-3.95
5.2
  
3.95-5.85
9.3
  
8.0-10.0
10
  
12.0-18.0
12
  
18.0-26.5
10
 InP
26.5-40
14
 InP
40-50
17
 InP 
53-69
33
 InP
65-90
45
 InP
75-110
60
 InP

 

Notes:

    1.  Balanced amplifiers typically have input and output return loss 20 dB or better.
    2.  InP denotes indium phosphide devices are used rather than gallium arsenide.