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High‐Frequency Backward Waves in Longitudinally Magnetized Gyrotropic Waveguides
Author(s) -
Alexov E. G.
Publication year - 1995
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.2150350104
Subject(s) - physics , cyclotron , waveguide , plasma , magnetic field , phase velocity , radius , optics , phase (matter) , wave propagation , computational physics , quantum mechanics , computer security , computer science
Abstract Backward waves in waveguides completely filled with magnetoactive plasma (gaseous or semiconductor plasma) have been investigated numerically. It is shown that two types of backward waves exist in such waveguides: cyclotron backward waves and waveguide HE ‐modes. While the cyclotron modes are backward waves at arbitrary system parameters (plasma density, magnetic field and waveguide radius), the waveguide backward waves appear only at certain values of there parameters. In addition the cyclotron backward waves can propagate at arbitrary wave‐number k z and at arbitrary phase velocity. The backward waveguide modes exist only at limited values of k z and of phase velocities.