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This paper reports the measured radiation characteristics of conical horns employing waveguide excitation. The experimentally derived gains are in excellent agreement with the theoretical results (unpublished) obtained by Gray and Schelkunoff. The gain and effective area is given for conical horns of arbitrary proportions and the radiation patterns are included for horns of optimum design. All dimensional data has been normalized in terms of wavelength, and are presented in convenient nomographic form.
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A. P. King (1950) studied this question.
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