Title :
Improved Injection Locking of Microwave FM-Oscillators
Author :
Endersz, G. ; Vucins, V.
Author_Institution :
Ue - Dev. Dept., Telefonaktiebolaget L M Ericsson, Stockholm, Sweden
Abstract :
A system for injection locking by angle-modulated signals is presented in which both the locked oscillator and the locking source is angle-modulated by the same signal. This method provides increased locking gain and improved stability against oscillator drift with preserved signal performance. Intermodulation measurements on a low-Q Gunn-oscillator, angle-modulated by a weakly coupled varactor (0.5 dB loss) demonstrated the expected effects.
Keywords :
Gunn oscillators; injection locked oscillators; intermodulation measurement; stability; varactors; angle-modulated signals; injection locking; intermodulation measurements; locked oscillator; locking source; low-Q Gunn-oscillator; microwave FM-oscillators; stability; weakly coupled varactor; Capacitance; Circuit stability; Frequency modulation; Injection-locked oscillators; Loss measurement; Microwave oscillators; Performance gain; Solid state circuits; Transmitters; Varactors;
Conference_Titel :
Microwave Symposium, 1972 IEEE GMTT International
Conference_Location :
Arlington Heights, IL
DOI :
10.1109/GMTT.1972.1123036
