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

作者：Liu, Baiyang; Cui, Yuehui; Li, Ronglin^*

来源：IEEE Antennas and Wireless Propagation Letters, 2017, 16: 744-747.

DOI：10.1109/LAWP.2016.2601615

• Broadband antenna
• dual-polarization
• multimode OAM antenna
• orbital angular momentum (OAM)

The generation of multimode orbital angular momentum (OAM) carrying beams has attracted more and more attention. Abroadband 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 4.2x10(-3) at 2.1, 2.4, and 2.7 GHz.

• 出版日期2017
• 单位华南理工大学