Effects of pump noise in parametric amplifiers
Abstract
A theory is presented which shows that close-to-carrier noise sidebands on a pump couple onto a signal being amplified by a parametric amplifier so that the signal also acquires noise sidebands. The appropriate coupling coefficients are derived. Experiments are described which confirm the accuracy of the maximum coefficients to within 3 db.
- Publication:
-
Institution of Electrical Engineers Proceedings
- Pub Date:
- May 1975
- Bibcode:
- 1975IEEP..122..473C
- Keywords:
-
- Background Noise;
- Broadband Amplifiers;
- Microwave Coupling;
- Parametric Amplifiers;
- Sidebands;
- Amplifier Design;
- Amplitude Modulation;
- Frequency Modulation;
- Microwave Amplifiers;
- Negative Resistance Devices;
- Power Gain;
- Pumping;
- Electronics and Electrical Engineering