Title :
Injection-lock bandwidth extension by control modulation and current ´hump´ slope detection
Author :
Braun, R.M. ; Downing, B.J.
Author_Institution :
Plessey South Africa Limited, Plumstead, South Africa
Abstract :
A scheme is described for using the injection-locking bandwidth of an electronically tuned microwave solid-state source to extend the locking to the limits of its electronic tuning range. The power supply current ´hump´ phenomenon is used to slope-detect a control modulation, which is then used to eliminate the difference in frequency between the free-running oscillator and the injected signal.
Keywords :
Gunn oscillators; frequency stability; microwave oscillators; solid-state microwave circuits; synchronisation; tuning; 35 GHz; Gunn oscillator; control modulation; electronic tuning range; frequency difference elimination; injection-locking bandwidth; microwave solid-state source; power supply current hump phenomenon; slope detection;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850399
