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A Numerical Analysis of Waveguide H-Plane Y-Junction Circulators with Circular Partial Height Ferrite Post
IEICE TRANSACTIONS (1976-1990)
Publication Date: 1978/08/25
Print ISSN: 0000-0000
Type of Manuscript: PAPER
Category: Microwaves and Millimeter Waves
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A widely used partial height ferrite circulator is analyzed. The circulator consists of ferrite post, dielectric spacers and a radial line stepped transformer, all of whose structures are assumed to be cylindrical. Eigenvalues of a circulator scattering matrix are numerically calculated, using mode matching method. Field analysis yields characteristics equations, which determine propagation constants in the partial height ferrite and dielectric structure. Calculated results of X-band circulators agreed well with experimental results. Wideband characteristics are obtained with numerical calculations.