Highly sensitive procedures for measuring permeabilities (µ±) for circularly polarized fields in microwave ferrites

Ogasawara, N.; Fuse, Tadashi; Inui, T.; Saito, Itsuro

doi:10.1109/tmag.1976.1059012

Cited by 17 publications

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“…In the resonant method, the aim is to identify and control the direction of the microwave magnetic field in the cavity so that the corresponding component of the permeability tensor can be measured. Most resonant methods use cylindrical or rectangular degenerate mode cavities or a ring resonator (Ogasawara N. 1976, Krupka J. et al 1996. These resonant methods only work at a single or several discrete frequencies and are very suitable for low-loss materials but not pertinent at the resonance frequency where the values of losses are high.…”

Section: Figure 27mentioning

confidence: 99%

Ferrite Ceramics at Microwave Frequencies: Applications and Characterization

Mattéi

Chevalier

Laur

2021

Encyclopedia of Materials: Technical Ceramics and Glasses

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This article focuses on microwave ferrites and their applications. The term ferrites designates ferrimagnetic materials, which constitute a class of magnetic materials showing high dynamic permeability and high electrical resistivity over frequencies up to several GHz. This article's aim is to present a primer to polycrystalline ferrite microwave properties, including wave propagation in magnetized ferrimagnetic materials. A special emphasis is placed on the incidence of material shape on its microwave properties. Some current applications of low-loss ferrimagnets in passive microwave components are addressed. A review of some microwave characterization methods is made in the last section.

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Section: Figure 27mentioning

confidence: 99%