Title :
Digital phase control by harmonic locking
Author :
Cullen, A.L. ; Al-Ani, A.H.
Author_Institution :
University College London, Department of Electronic & Electrical Engineering, London, UK
Abstract :
The principle of phase control by harmonic locking is verified experimentally, using a 1 GHz transistor oscillator locked to a 4 GHz source. Phase steps of ±90° can be obtained by the application of positive- or negative-voltage pulses to the locked transistor. Phase switching can be achieved in 40 ns.
Keywords :
digital control; microwave oscillators; phase control; phase shifters; 1 GHz transistor oscillator; harmonic locking; microwave devices; phase shifters; phase switching;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19710412
