High-Gain Low-Divergence OAM Antenna

被引：0
|
作者：
Li Yuanlong [1 ,2 ]
Luk, Kwai-man [1 ,2 ]
机构：
[1] City Univ Hong Kong, State Key Lab Terahertz & Millimeter Wave, Hong Kong, Peoples R China
[2] City Univ Hong Kong, Dept Elect Engn, Hong Kong, Peoples R China
来源：
2019 IEEE INTERNATIONAL WORKSHOP ON ELECTROMAGNETICS: APPLICATIONS AND STUDENT INNOVATION COMPETITION (IWEM2019) | 2019年
关键词：
D O I：
10.1109/iwem.2019.8887902
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The practical application of the Orbital Angular Momentum (OAM) antenna is limited by its valid transmission distance which affected by the gain and the divergence of OAM beams. Open resonator antenna (ORA) can realize a high gain and low divergence OAM radiation by exciting two HE21 modes inside. The proposed antenna consists of a spherical ground and a partially reflective surface (PRS) and is fed by slot-coupled patches. A 14-dBi gain OAM beam (l = +/- 2) with its maximum directivity in +/- 9 degrees can be achieved at 13 GHz by this structure.
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页数：3
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