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An X-shaped metasurface for high-efficiency ultra-wideband linear-to-circular and circular-to-linear polarization conversions

Author

Listed:
  • Baoqin Lin
  • Wenzhun Huang
  • Jianxin Guo
  • Yanwen Wang
  • Hongjun Ye
  • Xiang Ji

Abstract

In this study, an X-shaped metasurface composed of an array of X-shaped metal patches printed on a grounded dielectric substrate and covered by a top dielectric layer is proposed for both linear-to-circular (LTC) and circular-to-linear (CTL) polarization conversions. Theoretical analysis and numerical simulations indicate that the metasurface can be used as both LTC and CTL reflective polarization converters. Under u- and v-polarized incidences, it can achieve LTC polarization conversion in the ultra-wide frequency band from 7.5 to 25.8 GHz with a relative bandwidth of 110%, and the polarization conversion rate (PCR) can be kept larger than 99.7% in the frequency range of 7.9-24.7 GHz. Moreover, under CP incidence, a high-efficiency ultra-wideband CTL polarization conversion can be achieved, the bandwidth and PCR are almost the same as those of the LTC polarization conversion. Finally, one experimental verification is carried out, and a reasonable agreement is observed between the simulation and experimental results.

Suggested Citation

  • Baoqin Lin & Wenzhun Huang & Jianxin Guo & Yanwen Wang & Hongjun Ye & Xiang Ji, 2023. "An X-shaped metasurface for high-efficiency ultra-wideband linear-to-circular and circular-to-linear polarization conversions," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 37(5), pages 661-671, March.
    • Handle: RePEc:taf:tewaxx:v:37:y:2023:i:5:p:661-671
    DOI: 10.1080/09205071.2022.2164223
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