Abstract
Configuration of a polarizer that converts the dominant wave of input rectangular waveguide into the wave with elliptical polarization of output square waveguide. The phase-shifting section is implemented on a segment of a square waveguide with two diagonal square ridges and output iris with finite thickness. The full-wave model of the polarizer is created using partial regions and generalized scattering matrices methods. Based on results of numerical optimization of polarizers with input rectangular waveguide dimensions 19×9.5 mm2 it is revealed that they can provide bandwidth of at least 13% for ellipticity coefficient r < 1 dB and return loss not worse than 25 dB in lower, middle and upper parts of rectangular waveguide’s operating band.
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