Citation
Abstract
This article describes a method to obtain accurate and repeatable input noisetemperature measurements of cryogenically cooled low-noise amplifiers using a commercial noise-figure meter in conjunction with a cryogenic attenuator co-located with the amplifier under test. The calibration techniques used also are discussed.
Keywords
noise measurement
cryogenic attenuator
microwave measurement
low noise amplifiers
HEMT amplifiers
MASER amplifiers
Details
- Volume
- 42-135
- Published
- November 15, 1998
- Pages
- 1–9
- File Size
- 214.8 KB