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# Accession Number:

## AD0652368

# Title:

## THE RADIATION PRODUCED BY AN ARBITRARILY ORIENTED DIPOLE IN AN INFINITE, HOMOGENEOUS, WARM, ANISOTROPIC PLASMA.

# Descriptive Note:

## Final rept., Dec 66,

# Corporate Author:

## PURDUE UNIV LAFAYETTE IND SCHOOL OF ELECTRICAL ENGINEERING

# Report Date:

## 1966-12-01

# Pagination or Media Count:

##
215.0

# Abstract:

## An expression for the electric field produced by an arbitrarily oriented electric dipole in a warm, anisotropic, single-fluid plasma is derived. The radiation patterns are found for the specific example of a dipole oriented perpendicularly to the extermally impressed magnetic field, for a plasma in which omega sub p 0.412 omega, omega sub c 0.75 omega, omega 3 x 10 to the 8th power radians per second, and U 0.003 c. Results are found to be consistent with previous analyses, yet show significant changes produced by the consideration of electron temperature. Large maxima of radiation were found in the endfire direction, which are not found by the cold-plasma analysis. The procedure of analysis was to reduce the governing equations for this model to a single inhomogeneous wave equation in the electric field intensity, and to subsequently introduce a dyadic Greens function representation for the electric field intensity. The resulting homogeneous equation in the Greens function dyadic, was then Fourier-transformed, and the alebraic equations produced were then solved for the Greens function dyadic. One can, by a sixfold integration, find the field intensity due to any finite current configuration, using this result. Author

# Distribution Statement:

## APPROVED FOR PUBLIC RELEASE

#