Title :
Analysis of g-r noise upconversion in oscillators
Author :
Felgentreff, Tilman ; Anzill, W. ; Olbrich, G. ; Russer, Peter
Author_Institution :
Lehrstuhl fur Hochfrequenztech., Tech. Univ. Munchen, Germany
Abstract :
In this paper the upconversion of g-r noise to oscillator phase noise is analysed for the first time. The treatment of g-r noise sources showing a Lorentzian spectrum is implemented in a time domain noise calculation program using the perturbation method. Measurements and simulations show that the upconverted g-r noise dominates the phase noise characteristics of AlGaAs-GaAs-HEMT oscillators in the frequency range between 10 kHz and 8 MHz besides the carrier.<>
Keywords :
HEMT circuits; circuit noise; equivalent circuits; microwave oscillators; perturbation techniques; phase noise; semiconductor device noise; time-domain analysis; AlGaAs-GaAs; HEMT oscillators; Lorentzian spectrum; g-r noise upconversion; oscillator phase noise; perturbation method; time domain noise calculation program; Differential equations; Frequency measurement; Low-frequency noise; Noise level; Noise measurement; Oscillators; Phase measurement; Phase noise; Positron emission tomography; White noise;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.405892