Abstract

Based on the cylindrical vector wave functions, the propagation of a wave in a circular waveguide filled with a uniaxial chiral medium is rigorously formulated. By ignoring the diffraction effects of the edge and using the Stratton–Chu formula, radiation from an open-end guide is numerically computed for the lowest order n=1 mode. It is found that the uniaxial chirality of the filling material can sharpen the half-power beamwidths of this type of radiator. © 1998 John Wiley & Sons, Inc. Microwave Opt Technol Lett 19: 388–391, 1998.

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