Description of a microwave system for the measurement of close to carrier AM and FM noise spectra
Abstract
A measuring system for close-to-carrier AM and FM noise of CW generators and amplifiers (TWT, single-sideband amplifier, etc.) was built for the X-band. The measured limiting sensitivity is -100 dBc/Hz at 2 kHz off the carrier in a 145 Hz measuring bandwidth. At 10 kHz off the carrier this sensitivity is -120 dBc/Hz, and at 100 kHz it is -145 dBc/Hz.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- February 1984
- Bibcode:
- 1984STIN...8430168W
- Keywords:
-
- Amplitude Modulation;
- Carrier Frequencies;
- Frequency Modulation;
- Microwave Equipment;
- Noise Spectra;
- Continuous Radiation;
- Single Sideband Transmission;
- Spectral Sensitivity;
- Superhigh Frequencies;
- Traveling Wave Amplifiers;
- Communications and Radar