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Author(s):
Güngerich, Volker; Zinkler, Frank; Anzill, Werner; Russer, Peter H. 
Title:
Reduced Phase Noise of a Varactor Tunable Oscillator: Numerical Calculations and Experimental Results 
Abstract:
The signal and phase noise properties of two planar integrated tunable GaAs-MESFET oscillators with different resonator circuits at the gate terminal of the transistor are investigated using nonlinear calculation methods. The phase noise is calculated in the time domain by perturbation methods. The single sideband phase noise of a varactor-tunable microwave oscillator is reduced significantly to a value of -95 dBc/Hz, at an offset frequency of 100 kHz using a coupled microstrip line at the gate...    »
 
Keywords:
coupled microstrip line, field effect integrated circuits, GaAs, gallium arsenide, III-V semiconductors, microstrip components, microwave oscillators, MMIC, noise, nonlinear calculation methods, nonlinear network analysis, output power, perturbation methods, phase noise properties, planar integrated tunable GaAs-MESFET oscillators, quality factor, resonator circuits, single sideband phase noise, time domain, time-domain analysis, tuning bandwidth, varactors, varactor-tunable microwave oscillator...    »
 
Book / Congress title:
IEEE MTT-S International Microwave Symposium 
Volume:
Publisher address:
Atlanta, GA, USA 
Year:
1993 
Month:
jun 
Pages:
561--564