Control of single-mode operation in a circular waveguide filled by a longitudinally magnetized gyroelectromagnetic medium

Abstract

A substantial control of dispersion features of the hybrid EH01 and HE11 modes of a circular waveguide which is completely filled by a longitudinally magnetized composite finely-stratified ferrite-semiconductor structure is discussed. A relation between the resonant conditions of such a composite gyroelectromagnetic filling of the circular waveguide and dispersion features of the supported modes are studied. Three distinct frequency bands with the single-mode operation under normal as well as anomalous dispersion conditions of the EH01 mode are identified by solving an optimization problem with respect to the filling factors of the composite medium. The possibility of achieving isolated propagation of the HE11 mode is revealed.

12 pages, 4 figures

References in corpus (4)

• Polarization transformations by a magneto-photonic layered structure in vicinity of ferromagnetic resonance
• Crossing and anti-crossing effects of polaritons in a magnetic-semiconductor superlattice influenced by an external magnetic field
• Coexistence of bulk and surface polaritons in a~magnetic-semiconductor superlattice influenced by a transverse magnetic field
• Dispersion peculiarities of hybrid modes in a circular waveguide filled by a composite gyroelectromagnetic medium