DocumentCode :
1779810
Title :
Coupled-oscillator systems: Efficient simulation with harmonic-balance based oscillator models
Author :
Suarez, Almudena ; Ramirez, Franco ; Sancho, Sergio
Author_Institution :
Univ. of Cantabria, Santander, Spain
fYear :
2014
fDate :
14-16 May 2014
Firstpage :
1
Lastpage :
4
Abstract :
A two-level simulation methodology for coupled-oscillator systems is presented. The inner level corresponds to the harmonic-balance analysis of the elementary oscillator in free-running regime, so as to obtain a one-port reduced-order model. The outer level corresponds to the analysis of the coupled system, deriving a formulation that explicitly relates the oscillation-frequency deviation and the amplitude and phase distributions to magnitudes characterizing the coupling network and oscillator elements. A stability analysis based on this formulation is also carried out obtaining a mathematical condition that determines the stable phase-shift interval. The formulation provides valuable insight into the system behavior and allows the derivation of realistic criteria for an optimum coupled-system performance. The two-level analysis has been extended to injection-locked systems, which enables an investigation of the impact of the number of oscillator elements and relative position of the injection signal on the locking bandwidth.
Keywords :
harmonic analysis; injection locked oscillators; phase noise; reduced order systems; stability; amplitude distributions; coupled-oscillator systems; coupling network; elementary oscillator; harmonic-balance analysis; harmonic-balance based oscillator models; injection-locked systems; mathematical condition; one-port reduced-order model; optimum coupled-system performance; oscillator elements; phase distributions; stability analysis; stable phase-shift interval; two-level analysis; two-level simulation methodology; Bandwidth; Couplings; Integrated circuit modeling; Mathematical model; Oscillators; Stability analysis; Tuning; Coupled-oscillator system; near carrier noise; phase noise analysis; stability analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO), 2014 International Conference on
Conference_Location :
Pavia
Type :
conf
DOI :
10.1109/NEMO.2014.6995676
Filename :
6995676
Link To Document :
بازگشت