Metasurface-based broadband polarization-insensitive polarization rotator

The polarizations of electromagnetic (EM) waves are very important for transceivers. We propose a broadband polarization-insensitive polarization rotator (PIPR), which can realize 90° polarization rotation for incident waves with an arbitrary azimuth angle. A unit of the PIPR is composed of two type...

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Bibliographic Details
Published in:Optics express 2022-09, Vol.30 (19), p.34645-34654
Main Authors: Liu, Wei, Zhang, Lei, Ke, Junchen, Liang, Jingcheng, Xiao, Cong, Cheng, Qiang, Cui, Tiejun
Format: Article
Language:English
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Summary:The polarizations of electromagnetic (EM) waves are very important for transceivers. We propose a broadband polarization-insensitive polarization rotator (PIPR), which can realize 90° polarization rotation for incident waves with an arbitrary azimuth angle. A unit of the PIPR is composed of two types of substrate integrated waveguide (SIW) units in a checkerboard pattern, which provides more than −0.2 dB transmission from 9.5 to 10.9 GHz. The electric field inside the cavity is analyzed to explain the working mechanism of the proposed rotator. A prototype is fabricated and measured to verify the proposed design, and satisfactory agreement between simulated and measured results is achieved, indicating that the converter has potential applications in imaging and communication systems.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.471970