Antenna radiation in a moving dispersive medium
The general problem of calculating the radiation field of an antenna immersed in a moving dispersive medium is formulated as an algebraic equation in wave-vector frequency space for the potential 4-vector in the rest frame of the antenna, and is solved in terms of a Green's function having the form of a one-dimensional integral. The special case where the moving medium is a homogeneous ionized gas (plasma) and the antenna is an oscillating dipole is studied in detail. It is found that the far-zone field is not transverse and the Poynting vector is not purely radial.
Additional Information© 1965 IEEE. Manuscript received February 15, 1965. This research was supported by the U. S. Air Force, through the AF Office of Scientific Research, Office of Aerospace Research, under contract AF49(638)-1266.
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