A High-efficiency Polarization Conversion Cell for Generating Broadband Vortex Beams

In this paper, it is proposed a ultra-wideband polarization conversion cell for metasurface which is based on the concept of Pancharatnam-Berry(PB) phase. By optimizing the parameters of the cell, a near-ideal 180 reflection phase difference is obtained, which can achieve high-efficiency co-polariza...

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Bibliographic Details
Published in2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) pp. 235 - 236
Main Authors Xu, Zhenyi, Gong, Linshu, Cai, Mingjuan, Jiang, Tao
Format Conference Proceeding
LanguageEnglish
Published IEEE 10.07.2022
Subjects
Broadband antennas
Broadband communication
Conferences
metasurface
Metasurfaces
Pancharatnam-Berry phase
Reflection
Reflection coefficient
Ultra wideband technology
ultrawideband
vortex beam
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Summary:In this paper, it is proposed a ultra-wideband polarization conversion cell for metasurface which is based on the concept of Pancharatnam-Berry(PB) phase. By optimizing the parameters of the cell, a near-ideal 180 reflection phase difference is obtained, which can achieve high-efficiency co-polarization conversion in 9.26GHz-19.84GHz, and the polarization conversion efficiency of this cell is as high as 0.98. Based on the same principle, the unit reflection phase is arranged, and the high purity vortex beam metasurface in the band that listed above is designed, which proves the effectiveness of the proposed cell.
ISSN:1947-1491
DOI:10.1109/AP-S/USNC-URSI47032.2022.9886065