Continuous phase shift of sinusoidal signals using injection locked oscillators

This work presents an alternative to generate continuous phase shift of sinusoidal signals based on the use of super harmonic injection locked oscillators (ILO). The proposed circuit is a second harmonic ILO with varactor diodes as tuning elements. In the locking state, by changing the varactor bias...

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Detalhes bibliográficos
Autores: López Villegas, José María, Macías Montero, José Gabriel, Osorio, Joan A., Cabanillas Costa, Josep, Sieiro Córdoba, Javier José, Samitier i Martí, Josep, Vidal Martínez, Neus
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2005
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositório:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/8750
Acesso em linha:https://hdl.handle.net/2445/8750
Access Level:Acceso aberto
Palavra-chave:Modulació (Electrònica)
Circuits electrònics
Modulation (Electronics)
Electronic circuits
Descrição
Resumo:This work presents an alternative to generate continuous phase shift of sinusoidal signals based on the use of super harmonic injection locked oscillators (ILO). The proposed circuit is a second harmonic ILO with varactor diodes as tuning elements. In the locking state, by changing the varactor bias, a phase shift instead of a frequency shift is observed at the oscillator output. By combining two of these circuits, relative phases up to 90 could be achieved. Two prototypes of the circuit have been implemented and tested, a hybrid version working in the range of 200-300 MHz and a multichip module (MCM) version covering the 900¿1000 MHz band.