Ultra-compact 90° twist based on a pair of two closely placed flat chiral irises

Authors

  • A. A. Kirilenko Usikov Institute of Radiophysics and Electronics of the National Academy of Sciences of Ukraine, Ukraine http://orcid.org/0000-0002-8717-5334
  • N. G. Kolmakova St. Petersburg State Polytechnical University; Usikov Institute of Radiophysics and Electronics of the National Academy of Sciences of Ukraine, Russian Federation
  • S. A. Prikolotin Usikov Institute of Radiophysics and Electronics of the National Academy of Sciences of Ukraine, Ukraine

DOI:

https://doi.org/10.3103/S073527271204005X

Keywords:

optical activity, change of the polarization, 2D chirality, rotation symmetry, waveguide iris, square waveguide

Abstract

A new approach to the task of rotating the polarization plane of planar electromagnetic wave or dominant modes in a square (circular) waveguide is suggested. The physical idea is based on strong interaction of near-fields in two flat chiral irises with right and left rotation located at distances that are much less than the wavelength. Due to multi-mode character of the interaction it is possible to provide the several percent bandwidth when rotating the polarization plane by 90° at the level not worse than –0.1 dB.

References

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Published

2012-04-01

Issue

Section

Research Articles