超低频天线最优波束成形设计研究

马帅; 高梦迪; 曹世昱; 方啸; 张冠杰; 王洪梅; 李世银

doi:10.11999/JEIT220119

超低频天线最优波束成形设计研究

doi: 10.11999/JEIT220119

马帅^{1, 2, 3, ,},
高梦迪¹,
曹世昱¹,
方啸¹,
张冠杰¹,
王洪梅¹,
李世银¹

1.
中国矿业大学信息与控制工程学院徐州 221116
2.
东南大学移动通信国家重点实验室南京 210096
3.
西安邮电大学陕西省信息通信网络及安全重点实验室西安 710121

基金项目: 东南大学移动通信国家重点实验室开放研究基金(2021D02)

详细信息

作者简介:
马帅：男，副教授，研究方向为无线通信、可见光通信、低频透地通信等

高梦迪：男，硕士生，研究方向为低频透地通信

曹世昱：男，硕士生，研究方向为无线通信、定位技术

方啸：男，硕士生，研究方向为无线通信

张冠杰：男，硕士生，研究方向为低频透地通信

王洪梅：女，副教授，研究方向为无线通信、软件无线电

李世银：男，教授，研究方向为煤矿信息化、移动目标定位等

通讯作者:
马帅　mashuai001@cumt.edu.cn

中图分类号: TN91
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出版历程
- 收稿日期: 2022-01-27
- 修回日期: 2022-06-28
- 网络出版日期: 2022-07-01
- 刊出日期: 2023-04-10

Research on Optimal Beamforming Design of Ultra-low Frequency Antenna

1.
School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China
2.
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
3.
Shaanxi Province Information and Communications Network and Security Laboratory, Xi’an University of Posts and Telecommunications, Xi’an 710121, China

Funds: The Open Research Fund of National Mobile Communications Research Laboratory, Southeast University (2021D02)

摘要

摘要: 针对现有超低频天线发射端单一化缺陷和通信距离受限瓶颈，为实现超低频电磁发信系统的小型化和远距离传输，该文对旋转式永磁体机械天线的超低频电磁发信技术进行了理论创新和工程实践。探究多输入单输出 (MISO)场景下超低频多机械天线电磁辐射理论，建立了基于三相感应电机的多机械天线阵列的空间磁场分布模型。仿真结果表明：利用三相感应电机组成的2元机械天线阵列可使磁感应强度在近场提高3 dB。该文还提出了多天线超低频近场最优波束成型技术。仿真结果表明：当天线之间的初始相位相等时径向接收磁场分量场强最大。设计高精度同步技术并搭建原理样机进行测试，实验结果表明：发送端采用2元天线组阵，信号功率提高6 dBm，传输距离可达50 m。
- 旋转永磁体机械天线 /
- 波束成形 /
- 相位同步
Abstract: Considering the single defect of the transmitter of the existing mechanical ultra-low frequency antenna and the bottleneck of limited communication distance, In order to realize the miniaturization and long-distance transmission of ultra-low frequency electromagnetic signaling system, the theoretical innovation and engineering practice of low-frequency electromagnetic signaling technology of rotating permanent magnet mechanical antenna are carried out. The electromagnetic radiation theory of ultra-low frequency multi mechanical antenna in Multiple Input Single Output (MISO) scenario is explored, and the spatial magnetic field distribution model of multi mechanical antenna array based on three-phase induction motor is established. The simulation results show that the magnetic induction intensity can be increased by 3 dB in the near field by using the mechanical antenna array composed of three-phase induction motor. The ultra-low frequency near-field optimal beamforming technology with multiple mechanical antennas is proposed, The simulation results show that when the initial phases between the antennas are equal, the field strength of the radial received magnetic field component is the largest. High precision synchronization is designed and principle prototype is setted up for testing, The experimental results show that the signal power increased by 6 dBm and transmission distance can reach 50 m by using binary antenna array.
- Rotating magnet antenna /
- Beamforming /
- Phase synchronization

HTML全文

图 1 等效磁荷辐射机理示意图

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图 2 单天线辐射方向图

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图 3 多天线辐射方向图

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图 4 最优波束对比图

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图 5 信号发送装置

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图 6 信号接收装置

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图 7 超低频机械天线通信系统模拟框图

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图 8 同步与非同步信号对比

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图 9 信号功率随距离变化

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图 10 操场实测图

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图 11 距离与功率的关系图

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图 12 接收信号时间—功率图

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表 1 设备相关规格参数

设备名称	尺寸(cm)	额定电压(V)	额定电流(A)	额定功率(W)	额定转速(r/min)	材质
三相感应电机	$\varPhi$10×80	AC 220/380	5	1 500	24 000	铝合金
同步控制装置	9×12	AC/DC 24	0.043	1	/	塑料
变频器	10×15	单相 220	7	1 500	/	阻燃ABS塑料

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参考文献(15)

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