A ferrite ring stripline junction circulator

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Abstract
An essential feature of Bosnia's theory of the three-port stripline junction circulator is the smallness of the splitting of a degenerate pair of normal modes. This results in only a small asymmetric distortion of the isotropic field configuration in the disks. A new junction geometry is described which makes use of a garnet ring around a ceramic disk instead of the conventional garnet disk shape. When the degenerate modes of the two isotropic configurations are identical, the circulation adjustment for each geometry is nearly the same. This new circulator geometry is characterized by a low insertion loss and a large thermal capacity.

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