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- W187150007 abstract "The effects of electron temperature on the radiation fieldsand the resistance of a short dipole antenna embedded in a uniaxialplasma have been studied. It is found that for ω < ω_p the antenna excites two waves, a slow wave and a fast wave. These waves propagateonly within a cone whose axis is parallel to the biasing magnetostaticfield B_o and whose semicone angle is slightly less than sin ^(-1) (ω/ω_p).In the case of ω > ω_p the antenna excites two separate modes of radiation. One of the modes is the electromagnetic mode, while theother mode is of hot plasma origin. A characteristic interferencestructure is noted in the angular distribution of the field. The farfields are evaluated by asymptotic methods, while the near fields arecalculated numerically. The effects of antenna length l, electronthermal speed, collisional and Landau damping on the near field patterns have been studied. The input and the radiation resistances are calculated and areshown to remain finite for nonzero electron thermal velocities. Theeffect of Landau damping and the antenna length on the input andradiation resistances has been considered. The radiation condition for solving Maxwell's equations isdiscussed and the phase and group velocities for propagation given.It is found that for ω ω_p the hot plasma mode has similar characteristics." @default.
- W187150007 created "2016-06-24" @default.
- W187150007 creator A5084384156 @default.
- W187150007 date "1971-01-01" @default.
- W187150007 modified "2023-09-27" @default.
- W187150007 title "Radiation from a short electric dipole antenna in a hot uniaxial plasma" @default.
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- W187150007 doi "https://doi.org/10.7907/r9z4-rg15." @default.
- W187150007 hasPublicationYear "1971" @default.
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