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A new resonance in a circular waveguide cavity assisted by anisotropic metasurfaces

Li, X ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1109/MWSYM.2017.8058998
  3. Abstract:
  4. A new resonance phenomenon is discussed and demonstrated by experiment in a dual-polarization cavity. The resonance is formed by waves bouncing between two anisotropic metasurfaces placed at the cavity ends. The simple metasurfaces are designed to preserve the handedness of circularly polarized waves upon reflection. The standing waves resulting from such reflections do not have nodes and antinodes. A theoretical solution to the resonance condition is discussed, both for plane-waves and equivalent guided waves. The concept is then experimentally applied to dual-mode guided waves, demonstrating a very short cavity at X-band. This brings new possibilities for resonator design and can potentially be used in microwaves, mm-waves and beyond. © 2017 IEEE
  5. Keywords:
  6. Anisotropy ; Circular waveguides ; Elastic waves ; Guided electromagnetic wave propagation ; Microwave resonators ; Millimeter waves ; Waveguides ; Anisotropic ; Circular waveguide cavity ; Circularly polarized waves ; Hand-edness preserving ; Metasurface ; Resonance condition ; Resonance phenomena ; Theoretical solutions ; Resonance
  7. Source: IEEE MTT-S International Microwave Symposium Digest, 4 June 2017 through 9 June 2017 ; 2017 , Pages 1801-1803 ; 0149645X (ISSN) ; 9781509063604 (ISBN)
  8. URL: https://ieeexplore.ieee.org/document/8058998