A cooled low-noise GaAs FET amplifier
Abstract
This paper describes a study to determine the feasibility of replacing a 14 to 14.5 GHz parametric amplifier with a cooled GaAs FET low-noise amplifier (LNA). The LNA was designed using an automatic network analyzer and computer-aided-design techniques. The objective of 2.1-dB noise figure and 13-dB gain were achieved when the LNA was cooled to -60 C. Some additional effort will be required to improve the performance of the cooler. The study showed that it is feasible to replace a parametric amplifier with a cooled LNA in satellite communications system.
- Publication:
-
RCA Review
- Pub Date:
- December 1983
- Bibcode:
- 1983RCARv..44..537A
- Keywords:
-
- Amplifier Design;
- Computer Aided Design;
- Field Effect Transistors;
- Gallium Arsenides;
- Low Noise;
- Microwave Amplifiers;
- Cooling Systems;
- Feasibility Analysis;
- Linear Amplifiers;
- Noise Temperature;
- Power Amplifiers;
- Space Communication;
- Transponders;
- Electronics and Electrical Engineering