L-3 Narda-MITEQ
Cryogenic AmplifiersL-3 Narda-MITEQ has supplied Cryogenic Amplifiers for over 18 years. Typically, the customer provides the cryogenic cooling, but we have supplied some amplifiers with built-in cryogenic cooling systems. Our broadband low noise Cryogenic Amplifiers are often of interest to Radio Astronomers for use in radiometers. For Cryogenically Cooled Amplifiers, improvements in noise figure depend upon the type of FET used. pHEMT FETs have improved noise figures down to 77K, and mHEMT and InP devices improve down to 4K. Discrete InP FETs are difficult to obtain and difficult to work with and are rarely used. |
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| Model | Delivery | Freq Min (MHz) | Freq Max (MHz) | Gain Min (dB) | Gain Flatness (dB+/-) | Noise Figure (dB) | Noise Temperature (K) | Input VSWR | Output VSWR | P1dB Out (dBm) | IP3 Out Typ (dBm) | V1 Nom. (V) | Curr1 Nom (mA) | Outline Drawing |
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| AFS3-01000200-06-CR-6 | Standard | 1000 | 2000 | 38 | 1 | 0.6 | 43 | 2 | 2 | 5 | 15 | 6 | 75 | 113384-6 |
| AFS3-00100200-10-CR-4 | Standard | 100 | 2000 | 38 | 1 | 1 | 76 | 2 | 2 | 5 | 15 | 6 | 70 | 113384-4 |
| AFS3-02000400-08-CR-4 | Standard | 2000 | 4000 | 28 | 1 | 0.8 | 59 | 2 | 2 | 5 | 15 | 6 | 75 | 113384-4 |
| AFS3-04000800-09-CR-4 | Standard | 4000 | 8000 | 31 | 1 | 0.9 | 67 | 2 | 2 | 5 | 15 | 6 | 60 | 113384-4 |
| AFS4-08001200-10-CR-4 | Standard | 8000 | 12000 | 32 | 1 | 1 | 76 | 2 | 2 | 5 | 15 | 6 | 60 | 113384-4 |
| AFS4-12001800-16-CR-4 | Standard | 12000 | 18000 | 30 | 1.5 | 1.8 | 149 | 2 | 2 | 5 | 15 | 6 | 75 | 113384-4 |
6 Model(s) Found
