Title :
New nonlinear design tools for self-oscillating mixers
Author :
Hoeye, Samuel Ver ; Zurdo, Luis ; Suárez, Almudena
Author_Institution :
Dept. Ingenieria de Commun., Cantabria Univ., Santander, Spain
Abstract :
New nonlinear design tools for self-oscillating mixers are presented here, with the aim to increase the designer´s control over their behavior. The new tools enable fixing the self-oscillation frequency and selecting the optimum self-oscillation amplitude for maximum conversion gain. They can also be applied for the optimized design of harmonic self-oscillating mixers. Using bifurcation-theory concepts, it has been possible to increase the input-power range with self-oscillating-mixer operation. A self-oscillating mixer with 5.5 GHz input frequency has been designed and simulated obtaining very good agreement with the experimental results.
Keywords :
bifurcation; circuit optimisation; circuit oscillations; harmonic oscillators (circuits); microwave frequency convertors; microwave mixers; nonlinear network synthesis; 0.5 GHz; 5.5 GHz; bifurcation-theory concepts; frequency conversion; harmonic self-oscillating mixers; input-power range; maximum conversion gain; nonlinear design tools; optimization; optimum self-oscillation amplitude; quasi-periodic regime; self-oscillating mixers; self-oscillation frequency fixing; Bifurcation; Costs; Design optimization; Diodes; Energy consumption; Frequency conversion; Helium; Mixers; Oscillators; Power harmonic filters;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/7260.941782
