Generating and Measuring Tunable Orbital Angular Momentum Radio Beams With Digital Control Method

被引：28
|
作者：
Deng, Changjiang [1 ,2 ]
Zhang, Kai [3 ]
Feng, Zhenghe [3 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
[2] Beijing Inst Technol, Sch Informat & Elect, Beijing 100081, Peoples R China
[3] Tsinghua Univ, Dept Elect Engn, Tsinghua Natl Lab Informat Sci & Technol, State Key Lab Microwave & Digital Commun, Beijing 100084, Peoples R China
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2017年 / 65卷 / 02期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Antenna arrays; orbital angular momentum (OAM) measurement; tunable OAM; COMMUNICATION; TRANSMISSION; MODES;
D O I：
10.1109/TAP.2016.2632532
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：
A system of generating tunable orbital angular momentum (OAM) radio beams and a method of measuring the OAM states are proposed and experimentally investigated. The OAM beams, which are generated by a uniform circular array, can be dynamically configured by controlling the digital signals in the baseband. A 2-D near-field scanning platform is built to measure the OAM states of the system. The platform can provide multiple feed ports for the transmitting array. Iteration is used to calibrate the amplitude and phase of each feed port. The experimental results demonstrate the feasibility of the proposed methods on generating and measuring tunable OAM beams.
引用
收藏
页码：899 / 902
页数：4
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