Title :
Nonlinear design and experimental results of a low-noise varactor tunable oscillator using a coupled microstrip resonator
Author :
Gungerich, V. ; Schwab, M. ; Russer, P.
Author_Institution :
Lehrstuhl fuer Hochfrequenzitech., Tech. Univ. Munchen, Germany
Abstract :
A planar varactor tuned oscillator with a coupled microstrip resonator was designed for an optimum tuning range using a nonlinear predictor-corrector method. Compared with a single microstrip line resonator the coupled microstrip line resonator used in the design exhibited a steeper phase slope of its impedance and consequently yielded lower phase noise. Calculated and measured tuning characteristics agreed in a range of 1%.<>
Keywords :
hybrid integrated circuits; microstrip components; microwave integrated circuits; microwave oscillators; resonators; tuning; varactors; variable-frequency oscillators; MIC; coupled microstrip resonator; low-noise varactor; nonlinear design; nonlinear predictor-corrector method; optimum tuning range; phase noise; tunable oscillator; Bandwidth; Circuit optimization; Couplings; Diodes; Frequency; Microstrip resonators; Oscillators; Tunable circuits and devices; Tuning; Varactors;
Conference_Titel :
Microwave Symposium Digest, 1992., IEEE MTT-S International
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-0611-2
DOI :
10.1109/MWSYM.1992.188039
