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A Broadband Dual-Polarized Dual-OAM-Mode Antenna Array for OAM Communication

The generation of multimode orbital angular momentum (OAM) carrying beams has attracted more and more attention. A broadband dual-polarized dual-OAM-mode uniform circular array is proposed in this letter. The proposed antenna array, which consists of a broadband dual-polarized bow-tie dipole array a...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2017, Vol.16, p.744-747
Main Authors: Liu, Baiyang, Cui, Yuehui, Li, Ronglin
Format: Article
Language:English
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Summary:The generation of multimode orbital angular momentum (OAM) carrying beams has attracted more and more attention. A broadband dual-polarized dual-OAM-mode uniform circular array is proposed in this letter. The proposed antenna array, which consists of a broadband dual-polarized bow-tie dipole array and a broadband phase-shifting feeding network, can be used to generate OAM mode -1 and OAM mode 1 beams from 2.1 to 2.7 GHz (a bandwidth of 25%) for each of two polarizations. Four orthogonal channels can be provided by the proposed antenna array. A 2.5-m broadband OAM link is built. The measured crosstalk between the mode matched channels and the mode mismatched channels is less than -12 dB at 2.1, 2.4, and 2.7 GHz. Four different data streams are transmitted simultaneously by the proposed array with a bit error rate less than 4.2Ă—10 -3 at 2.1, 2.4, and 2.7 GHz.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2016.2601615