Splitting axially heterogeneous modes in microwave gyromagnetic and gyroelectric resonators

Nikolay N. Movchan; Igor V. Zavislyak; Maksym A. Popov

doi:10.3103/S0735272712120047

Authors

Nikolay N. Movchan Taras Shevchenko National University of Kyiv, Ukraine https://orcid.org/0000-0002-1303-9946
Igor V. Zavislyak Taras Shevchenko National University of Kyiv, Ukraine https://orcid.org/0000-0003-0161-4197
Maksym A. Popov Taras Shevchenko National University of Kyiv, Ukraine https://orcid.org/0000-0003-3509-7108

DOI:

https://doi.org/10.3103/S0735272712120047

Keywords:

gyrotropic resonator, splitting modes, gyromagnetic resonator, gyroelectric resonator

Abstract

Theory of calculating eigenmodes spectrum for gyrotropic resonators when using scalar potentials formalism is developed. Equations for calculating splitting of resonant frequencies of gyromagnetic and gyroelectric cylinder resonators in magnetic field are derived. Theoretical results are compared to the experimentally obtained figures for microwave gyromagnetic resonators made of barium hexaferrite. Example of a resonator made of indium antimonide demonstrates the possibility of using magnetized semiconductor resonators cooled to liquid nitrogen temperature to achieve the same characteristics offered by resonators made of magnetically firm hexaferrites when designing unidirectional microwave devices.

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