When the boundaries of a waveguide are closer in shape to a cone than to a cylinder, a modal decomposition in spherical coordinates, as carried out here, is more efficient than one carried out in cartesian or cylindrical coordinates. For the case of a waveguide varying only slightly from a cone, a degenerate one-dimensional equation analogous to the horn equation is presented.
Author:
Amir, Noam
Affiliation:
Universitd du Maine, Le Mans, France
AES Convention:
98 (February 1995)
Paper Number:
3984
Publication Date:
February 1, 1995
Subject:
Transducers: Fundamentals
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