Ferrites for VHF frequencies

This paper and the one following describe the application of ferrite circulators at VHF frequencies. A brief description of the non-reciprocal properties of ferrites is given along with a summary of the theoretical operation of a junction circulator. Several applications are briefly described in this paper in addition to the detailed description of a multiplexer in R. Klein´s paper. A detailed bibliography on ferrite devices is included for those who wish to pursue the subject in greater depth.