| 摘要 |
A waveguide twist is constructed of basic sections arranged to form a continuous waveguide which rotates the plane of polarization of the guided waves through a large angle in a short distance without appreciable wave energy reflection. Each basic section is approximately one quarter wavelength long and has portions of its broad walls sloped to cause the plane of polarization of the wave energy propagating through the waveguide to be gradually rotated without storage of an appreciable amount of energy in the section and without encountering any abrupt change in cross-sectional area within the waveguide twist. The sloped wall portions form graded steps which replace the abrupt steps that occur at the transitions between segments of a shear twist and "capacitive" recesses in the basic section are provided to tune out the shunt inductance of the section.
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