Variable-temperature loads for use in accurate noise measurements of cryogenically-cooled microwave amplifiers and mixers
Abstract
We have demostrated the use of cryogenically-cooled variable-temperature loads for accurate noise measurements of low-noise cooled amplifiers and mixers in the microwave and millimeter wave range. The input noise temperature of the amplifier or mixer can be measured with an accuracy of ±1 K or better.
- Publication:
-
International Journal of Infrared and Millimeter Waves
- Pub Date:
- April 1986
- DOI:
- 10.1007/BF01013276
- Bibcode:
- 1986IJIMW...7..543M
- Keywords:
-
- Cryogenic Cooling;
- Microwave Amplifiers;
- Millimeter Waves;
- Noise Measurement;
- Sis (Superconductors);
- Superconductors;
- Field Effect Transistors;
- Gallium Arsenides;
- Microwave Circuits;
- Mixing Circuits;
- Noise Temperature;
- Thermal Analysis;
- Electronics and Electrical Engineering;
- noise measurement;
- microwave;
- mm-wave;
- cryogenically-cooled;
- amplifier;
- mixer;
- SIS-mixer