Improvement of the pull in range and acquisition time of a microwave PLL system by injection locking the V.C.O
Document typeConference report
Rights accessOpen Access
The requirements of large pull-in range and short acquisition time in microwave and millimeter wave phase locked oscillators are of great importance since the free running VCO frequency may be sorne tens of MHz off the reference frequency. A substantial improvement can be obtained by injection-locking the V.C.O. to the reference signal; as a result, the V.C.O behaviour changes to a phase controlled fixed frequency oscillator, giving a reduction by one in the system order. Then, frequency acquisition is performed by the injection-locking process, and phase tracking is made by the P.L.l. system. We present experimental comparisons between a microwave P.l.l. system operating at 11 GHz, with an without injection-locking synchronization.
CitationBerenguer-Sau, J., Bara, J., Artal, E., Corbella, I. Improvement of the pull in range and acquisition time of a microwave PLL system by injection locking the V.C.O. A: IEEE Frequency Control Symposium. "1987 IEEE International Frequency Control Symposium, IFCS 1987, Proceedings: Philadelphia, EEUU, 27-29 Mayo 1987". Philadelphia: 1987, p. 524-526.
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- RF&MW - Grup de Recerca de Sistemes, Dispositius i Materials de RF i Microones - Ponències/Comunicacions de congressos 
- Departament de Teoria del Senyal i Comunicacions - Ponències/Comunicacions de congressos