Letter to the editor: the 'magnetic conductivity' and wave propagation

The author comments on issues brought up by P. Hillion and M.F. Harmuth (see ibid., vol.33, no.2, p.144-5, 1991) regarding the need to have a magnetic conductivity term in the formulation for pulse transmission. The initial boundary problem and the question of deriving the magnetic field from the electric field for pulse transmission in homogeneous lossy media are discussed.<
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