injection locking


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injection locking

[in′jek·shən ¦läk·iŋ]
(electronics)
The capture or synchronization of a free-running oscillator by a weak injected signal at a frequency close to the natural oscillator frequency or to one of its subharmonics; used for frequency stabilization in IMPATT or magnetron microwave oscillators, gas-laser oscillators, and many other types of oscillators.
References in periodicals archive ?
The rto is needed to characterize the devices the group makes for injection locking experiments, measurement of relaxation oscillations of lasers, and narrow line width measurements of lasers.
Local stability of nonlinear circuits in large-signal regime, nonlinear analysis, stability and bifurcations, and injection locking are explained.
In the past, high speed transmitter/receiver functions were plagued by injection locking, noise and crosstalk problems.
Injection locking may be obtained via mutual coupling, external feedback or an external source.
The notch array can be used as a transmitter with an external injection locking source for mechanical beam steering.
In the past, high-speed transmitter/receiver functions were plagued by injection locking, noise and cross talk problems.
Clearly, a nonlinear mechanism is required to generate harmonics of the reference signal so that efficient injection locking of oscillators at 8 GHz, 12 GHz and 24 GHz can be maintained.
High-speed transceiver functions using multiple PLLs have been plagued by injection locking, noise and crosstalk problems," said John Schaefer, Vitesse product marketing manager.
Locked oscillator frequency dividers operate by subharmonic injection locking.
This also helps to isolate the final output, making it less sensitive to output mismatching, and eliminating injection locking of the VCO.
This unique Vitesse IC also allows integrating multiple circuits onto one substrate without injection locking problems normally associated with PLL-based designs.
In this system, the injection locking signals are generated by the stable master oscillator (STAMO) and without filtering, injected into the RF coherent oscillator (Coho) and amplifier chain, respectively.