Compact waveguide-integrated metasurface twist with filtering and phase shifting capabilities for millimeter-wave guided-wave applications
Amirmasood Bagheri, Zahra Rahimian Omam, Pei Xiao, Seyed Ehsan Hosseininejad, Mohsen Khalily
TL;DR
This paper introduces a compact waveguide-integrated metasurface that controls millimeter-wave properties like polarization and phase for advanced communication systems.
Contribution
A novel waveguide-integrated metasurface twist that enables polarization rotation, filtering, and phase shifting in a compact design.
Findings
The metasurface achieves polarization rotation, bandpass filtering, and phase shifting within waveguides.
A prototype operating at 26.6–29 GHz shows low insertion loss (0.34 dB at 28 GHz).
The device thickness is only 0.16λg, making it suitable for next-generation mm-wave systems.
Abstract
Recent advancements in metasurfaces have enabled precise control of wave properties such as amplitude, phase, and polarization, which are critical for multifunctional devices in modern communications. While most metasurfaces are designed for free-space use, this work integrates metasurfaces within waveguides to enable guided-wave control. We introduce a compact waveguide-integrated metasurface twist that achieves polarization rotation, bandpass filtering, and phase shifting. The metasurface comprises a 3×3 array of dog bone–shaped resonators and orthogonal gratings. Positioned between two rectangular waveguides with a 90° twist, it allows precise tuning of wave properties. A fabricated prototype operating in the 26.6–29 GHz band shows an average insertion loss of 0.6 dB and a minimum of 0.34 dB at 28 GHz. This work demonstrates a compact, high-performance solution for millimeter-wave…
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Taxonomy
TopicsMetamaterials and Metasurfaces Applications · Advanced Antenna and Metasurface Technologies · Microwave Engineering and Waveguides