Polarizers on sections of square waveguides with inner corner ridges
DOI:
https://doi.org/10.1109/ICATT.2011.6170775Keywords:
waveguide polarizer, waveguide of complex cross-section, square waveguideAbstract
The optimization and analysis of new waveguide polarizers have been carried out on the basis of rigorous full-wave model. These polarizers transform the dominant mode of input rectangular waveguide into an elliptically polarized wave of output square waveguide. The phase-shifting module is realized on the basis of one or two sections of a square waveguide having two diagonally placed square ridges. It has been found out that polarizers with single-section phase shifter can provide the bandwidth from 11 to 15% at the axial ratio level of r < 2 dB and the return loss level of RL > 20 dB, whereas the two-section ones have the bandwidths more 23% at r < 1 dB and RL > 23 dB.References
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