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

A new ultra-compact device for rotating the polarization plane of planar electromagnetic wave in a square waveguide by 90° whose dimension is almost ten times less than wavelength is suggested. It is based on strong interaction of near-fields in two closely placed flat chiral irises. It is shown tha...

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Bibliographic Details
Published inRadioelectronics and communications systems Vol. 55; no. 4; pp. 175 - 177
Main Authors Kirilenko, A. A., Kolmakova, N. G., Prikolotin, S. A.
Format Journal Article
LanguageEnglish
Published Heidelberg Allerton Press, Inc 01.04.2012
Subjects
Communications Engineering
Engineering
Networks
Polarization Plane
Chiral Metamaterials
Chiral Element
Planar Electromagnetic Wave
Optical Activity
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Summary:A new ultra-compact device for rotating the polarization plane of planar electromagnetic wave in a square waveguide by 90° whose dimension is almost ten times less than wavelength is suggested. It is based on strong interaction of near-fields in two closely placed flat chiral irises. It is shown that this approach due to strong multi-mode and near-field interaction allows rotating the polarization plane by 90° in the several percent bandwidth with the loss level not worse than 0.1 dB.
ISSN:0735-2727
1934-8061
DOI:10.3103/S073527271204005X