DocumentCode
892477
Title
A Microwave System for Measurements of AM and FM Noise Spectra
Author
Ondria, John G.
Volume
16
Issue
9
fYear
1968
fDate
9/1/1968 12:00:00 AM
Firstpage
767
Lastpage
781
Abstract
This paper describes a noise measuring system with a high degree of flexibility in regard to video frequency coverage as well as radio frequency coverage. Noise systems for S, X, and Ku-bands were constructed to obtain high sensitivity at spectral frequencies from several Hz to 30 MHz off the carrier. The measured limiting sensitivities of the X-band set over the video range 20 Hz to 325 kHz with an input power of 10 mW are --145 dB for AM noise and 0.02 Hz rms for FM noise in a 100-Hz measuring bandwidth.
Keywords
Bandwidth; Doppler radar; Fluctuations; Frequency measurement; Low-frequency noise; Microwave measurements; Noise measurement; Power measurement; Radio frequency; Strips;
fLanguage
English
Journal_Title
Microwave Theory and Techniques, IEEE Transactions on
Publisher
ieee
ISSN
0018-9480
Type
jour
DOI
10.1109/TMTT.1968.1126784
Filename
1126784
Link To Document