Title :
Realisation of the circulator concept using differential-input operational amplifiers
Author :
Keen, A.W. ; Glover, Jacqueline L. ; Harris, Richard J.
Author_Institution :
Bath University of Technology, School of Electrical Engineering, Bristol, UK
Abstract :
A 3-port unit that satisfies the requirements of the circulator concept is realised with a differential-input operational amplifier. It provides, between two of its ports, a direct measure of reflection coefficient at the third port. One unit may be employed as a hybrid transformer; two or more units may be connected in a ring to form an n-port circulator.
Keywords :
circuit theory; waveguide components;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19680307