Parametric amplifier pump design
Abstract
Current developments are directed towards the demonstration of low noise performance at 94 GHz for such applications as coherent radar (LNR), space-object imaging, reconnaissance, and communications. The use of cryogenic techniques to minimize the amplifier noise temperature is generally restricted to radio astronomy where expense, complexity, and reliability may be of secondary importance. However, in military communications or civil systems, refrigeration is usually precluded and low noise is obtained by electronic cooling, by the use of high pump frequencies.
- Publication:
-
In AGARD Millimeter and Submillimeter Wave Propagation and Circuits 8 p (SEE N79-23264 14-31
- Pub Date:
- February 1979
- Bibcode:
- 1979mswp.agarQ....P
- Keywords:
-
- Parametric Amplifiers;
- Pumps;
- Structural Design;
- Cryogenics;
- Radio Astronomy;
- Solid State Devices;
- Wave Propagation;
- Electronics and Electrical Engineering