Junction circulator design - using yttrium gadolinium aluminium garnet ferrite discs

摘要

The parent patent was concerned with transmitting a heat peak power at hyperfrequencies with low losses in function circulator consisting of ferrite pellets saturated by a continuous, polarising magnetic field. When a certain valve of polarisation field was exceeded, a high peak power could be transmitted without giving rise to non-linear effects, the ferroelectric material used being of the type having a narrow spin wave beam, while the continuous magnetic field was less than the field of gyromagnetic resonance. In this addition, the function circulator of the parent patent is applied to stripline circulators. The function circulator has a star conductor with three branches inserted between two ferrite discs. These are located on either face of the star conductor between two of rectangular heavy plates. The plates have outside openings, in which are located permanent magnets. Rings of dielectric material surround the ferrite discs.