Title :
A precise digital phase shifter using a phase-locked loop
Author :
Austin, J. ; Forrest, J.R.
Author_Institution :
University College London, Electronic & Electrical Engineering Department, London, UK
Abstract :
A phase-locked loop containing a voltage-controlled oscillator (v.c.o.) synchronised to a harmonic of its fundamental output frequency may be used to form an attractive digital phase shifter providing low phase error with relatively simple circuitry and control requirements. Phase increments of 2¿/n radians are obtained, where n is the order of harmonic used.
Keywords :
phase shifters; phase-locked loops; harmonically locked PLL phase shifter; phase locked loops; precise digital phase shifter; voltage controlled oscillators;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19780173
