Quadrupole gyromagnetic ferrite circular variable polariser loaded with a dielectric ring

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Quadrupole gyromagnetic ferrite circular variable polariser loaded with a dielectric ring

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The introduction of a thin dielectric ring helps to increase the differential phase shift of the quadrupole gyromagnetic ferrite variable polariser by about 20~30%. Furthermore, a double-step impedance transformer has been introduced to broaden the bandwidth from 4.06 to 14.5%. The peak power is 750 kW, average power is 500 W, and the switching time is about 25 µs.

Inspec keywords: dielectric-loaded waveguides; ferrite phase shifters; impedance matching; electromagnetic wave polarisation; ferrite-loaded waveguides; impedance convertors; gyromagnetic effect; waveguide components; circular waveguides

Other keywords: 25 mus; average power; switching time; double-step impedance transformer; 750 kW; differential phase shift; quadrupole gyromagnetic ferrite circular variable polariser; peak power; circular waveguide; dielectric ring; 500 W

Subjects: Microwave magnetic devices; Waveguide and microwave transmission line components

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