DocumentCode
900377
Title
Determination of Equivalent Circuit Parameters Describing Noise from a Gunn Oscillator
Author
Hashiguchi, S. ; Okoshi, T.
Volume
19
Issue
8
fYear
1971
Firstpage
686
Lastpage
691
Abstract
The AM and FM fluctuations in an oscillator output are originated from impedance fluctuation in low frequencies (baseband noise) and voltage or current fluctuation in the vicinity of the carrier frequency (RF noise). In this paper, from newly defined "complex correlation coefficient between AM and FM noises," contributions of baseband and RF noises to the AM and FM noises are determined. Examples of data for X-band Gunn oscillators show that both the AM and FM noises are mainly caused by the baseband noise in the vicinity of the carrier frequency (within 1-kHz band), whereas they are mainly due to the RF noise at frequencies further than 10 kHz from the carrier frequency.
Keywords
Band pass filters; Circuit noise; Circuit synthesis; Equivalent circuits; Frequency; Gunn devices; Low-frequency noise; Microwave filters; Microwave theory and techniques; Oscillators;
fLanguage
English
Journal_Title
Microwave Theory and Techniques, IEEE Transactions on
Publisher
ieee
ISSN
0018-9480
Type
jour
DOI
10.1109/TMTT.1971.1127610
Filename
1127610
Link To Document