Analysis of injection-locked pulsed waveform oscillators

Author

Ponton, Mabel ; Fernández, Elena ; Suárez, Almudena ; Ramírez, Franco

Author_Institution

Dipt. de Ing. de Comun., Univ. de Cantabria, Santander, Spain

fYear

2011

fDate

10-11 Oct. 2011

Firstpage

156

Lastpage

159

Abstract

The injection-locked behaviour of a high efficiency pulsed waveform oscillator is analyzed in detail. The design is based on a closed-loop configuration, loaded with a short nonlinear transmission line (NLTL). A new technique is provided to predict the effect of the circuit elements on the synchronization bandwidth, which enables an overall optimization of the oscillator design, considering efficiency, pulse width and locking interval. The phase-noise minimum in free-running conditions, obtained for particular values of the design parameters, is investigated through the use of phase sensitivity functions. The impact of this minimum on the noise spectrum in injection-locked conditions is also studied. The techniques have been applied to a pulsed-waveform oscillator at 0.9 GHz.

Keywords

UHF oscillators; injection locked oscillators; phase noise; transmission lines; closed-loop configuration; frequency 0.9 GHz; injection-locked pulsed waveform oscillators; locking interval; noise spectrum; nonlinear transmission line; phase noise minimum; phase sensitivity functions; pulse width; synchronization bandwidth; Inductance; Optimization; Phase noise; Synchronization; Transient analysis; Injection-locking; efficiency; nonlinear transmission lines; oscillators; phase noise; solitons;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Integrated Circuits Conference (EuMIC), 2011 European

Conference_Location

Manchester

Print_ISBN

978-1-61284-236-3

Type

conf

Filename

6102924