Microwave junction circulator

Wave transmission lines and networks – Plural channel systems – Nonreciprocal gyromagnetic type

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333 241, H01P 139

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active

048109797

ABSTRACT:
A junction circulator suitable for high power, high-frequency use has a microwave junction zone which is penetrated by a static magnetic field. Disposed in the microwave junction zone is a ferromagnetic resonator composed of different dielectric media, at least one of which has ferromagnetic characteristics. The interfaces between the various dielectric media form three-dimensional bodies which extend over the entire height of the junction zone and which have cross sections that do not change in the direction of the static magnetic field. These interfaces may be provided by parallel ferrite rods, or a ferrite body with parallel bores.

REFERENCES:
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patent: 4122418 (1978-10-01), Nagao
patent: 4280111 (1981-07-01), Forterre et al.
patent: 4605915 (1986-08-01), Marshall et al.
F. Okada et al., "Design of a High-Power CW Y-Junction Waveguide Circulator", IEEE Transactions on Microwave Theory and Techniques, vol. MIT-26, No. 5 (May, 1978), pp. 364-369.
F. Okada et al., "High-Power Circulators for Industrial Processing Systems", IEEE Transactions on Magnetics, vol. MAG-17, No. 6 (Nov. 1981), pp. 2957-2960.

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