Harmonic Optimization of Rationally Synchronized Oscillators

• Published in: IEEE microwave and wireless components letters 2009-05, Vol.19 (5), p.317-319
• Main Authors: Ver Hoeye, S., Corredoiras, M.G., Garcia, M.F., Antuna, C.V., Ontanon, L., Andres, F.
• Format: Article
• Language: English
• Subjects: Applied sciences; Bandwidth; Circuit design; Circuit properties; Circuit synthesis; Control system synthesis; Design optimization; Electric, optical and optoelectronic circuits; Electronic circuits; Electronics; Exact sciences and technology; frequency divider (FD); Frequency synchronization; harmonic balance; Harmonics; Injection-locked oscillators; Mathematical analysis; Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits; Microwave oscillators; Microwaves; Optimization; optimization methods; Oscillators, resonators, synthetizers; Power harmonic filters; Signal convertors; Signal synthesis; Synchronism; Synchronization; Synchronized oscillators; Voltage-controlled oscillators
• ISSN: 1531-1309; 2771-957X; 1558-1764; 2771-9588
• DOI: 10.1109/LMWC.2009.2017604

A new optimization technique is presented for the design of synchronized oscillators with a rational ratio between the input- and output-frequency. The synchronization bandwidth is increased through the generation of the optimum harmonic components of the oscillator- and the input-signal by means of a multi-harmonic load. The synchronization loci are calculated for different values of these harmonic components by means of the use of an auxiliary generator. A 5-3.75 GHz rationally synchronized oscillator has been designed and optimized to obtain a maximum synchronization bandwidth, obtaining a good agreement between the simulated and experimental results.