Performance of Using Antenna Arrays to Generate and Receive Mm-Wave Orbital-Angular-Momentum Beams

被引：0

作者：

Zhao, Zhe ^{[1
]}

Xie, Guodong ^{[1
]}

Li, Long ^{[1
]}

Song, Haoqian ^{[1
]}

Liu, Cong ^{[1
]}

Pang, Kai ^{[1
]}

Zhang, Runzhou ^{[1
]}

Bao, Changjing ^{[1
]}

Wang, Zhe ^{[1
]}

Sajuyigbe, Soji ^{[2
]}

Talwar, Shilpa ^{[2
]}

Nikopour, Hosein ^{[2
]}

Willner, Alan E. ^{[1
]}

机构：

[1] Univ Southern Calif, Dept Elect Engn, Los Angeles, CA 90089 USA

[2] Intel Corp, Intel Labs, Santa Clara, CA 95054 USA

来源：

GLOBECOM 2017 - 2017 IEEE GLOBAL COMMUNICATIONS CONFERENCE | 2017年

关键词：

Antenna design; orbital angular momentum; millimeter wave; spatial-division multiplexing; COMMUNICATION; TRANSMISSION;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Generation and detection of millimeter-wave carrying orbital angular momentum (OAM) have been of growing interest. In this paper, we evaluate patch antenna arrays with different arrangements as OAM generators and receivers by simulation. We compare beam evolution processes and steering performance for circular and ring-antenna-array based OAM links. Mode purity of the generated OAM + 1 beam fluctuates between 10% and 99% for ring antenna arrays with 10 cm diameters while it remains >99% for circular antenna arrays. Compared to a ring-antenna-array based link, the circular-antenna-array based link could have an similar to 10 dB lower power loss at the distance up to 0.5m. We also show that a 5cm diameter circular antenna array could steer an OAM + 1 beam up to 80 degrees with a mode purity degradation of <1%, while ring antenna arrays have similar to 10% mode purity degradation. OAM spectrum analysis shows both the lattice shape and the boundary shape of an antenna array could cause power leakage to harmonic OAM orders. Such power leakages would increase as the designed OAM order or the lattice period d increases, while it would decrease as the array diameter D increases.

引用

页数：6

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