适用于隧道环境的二元相控阵天线系统

钟选明; 张东民; 廖成; 杜振; 熊洁

doi:10.11884/HPLPB202032.190423

适用于隧道环境的二元相控阵天线系统

doi: 10.11884/HPLPB202032.190423

钟选明^1,,
张东民^1, ,,
廖成¹,
杜振¹,
熊洁²

1.
西南交通大学电磁场与微波技术研究所，成都 610031
2.
中铁二院工程集团有限责任公司，成都 610031

基金项目: 国家自然科学基金项目（61771407）；铁二院横向项目（2018H00665）

详细信息

作者简介:
钟选明（1972—），男，博士，从事天线设计及微波成像研究；xm_zhong@163.com

通讯作者:
张东民（1990—），男，博士研究生，从事天线设计及电磁兼容研究；zhangdongmin@my.swjtu.edu.cn

中图分类号: TN828.6
计量
- 文章访问数: 1803
- HTML全文浏览量: 601
- PDF下载量: 46
- 被引次数: 0
出版历程
- 收稿日期: 2019-11-08
- 修回日期: 2020-01-17
- 刊出日期: 2020-02-10

Two-element phased array antenna system suitable for tunnel environment

1.
Electromagnetic Institute, Southwest Jiaotong University, Chengdu 610031, China
2.
China Railway Eryuan Engineering Group CO. LTD, Chengdu 610031, China

摘要

摘要:
为了满足在隧道环境中实现高速率、高质量无线通信的迫切需求，研究了适用于隧道环境的高增益天线，提出了利用二元相控阵天线系统提高隧道内信号传输质量的新方法。相控阵天线系统由两个高增益天线单元及一个移相器组成，通过移相器调整其中一个天线单元的相位，使隧道内合成电场的最小值幅值达到最大，提升信号的平均场强。仿真结果表明：与单个天线发射信号相比，在3 000 m隧道轴向传播范围内，相控阵天线系统发射信号合成电场的最低电平最少提升了19.6 dB；与两个天线同时发射信号相比，最低电平最少提升了12.4 dB，取得较好分集优化效果，消除多径效应导致的深度衰落，解决了隧道环境中存在的通信问题。
- 天线 /
- 相控阵 /
- 高增益 /
- 隧道 /
- 无线通信
Abstract:
To meet the urgent need of high-speed and high-quality wireless communication in tunnel environment, the high gain antenna suitable for tunnel environment is studied. A novel approach to improve the transmission quality of signals in tunnel by using two-element phased array antenna system is presented. The phased array antenna system consists of two high gain antennas and a phase shifter. By adjusting the phase of one antenna, the minimum amplitude of the superimposed electric field strength in the tunnel can be maximized, and the average electric field strength of the signals can be increased. The simulation results show that, compared with the signals transmitted by single antenna, the minimum amplitude of the superimposed electric field strength of the signals transmitted by phased array antenna system increases by 19.6 dB at least in the axial propagation range of 3 000 m tunnel, and at least a 12.4 dB augmentation of the minimum electric field strength compared with the signals transmitted by two antennas simultaneously; the system achieves better diversity optimization effect, eliminates the deep fading caused by multipath effect, and solves the communication problem in tunnel environment.
- antenna /
- phased array antenna system /
- high gain /
- tunnel /
- wireless communication

HTML全文

图 1 天线主辐射单元结构示意图

Figure 1. Structure diagram of the antenna main radiation unit

下载: 全尺寸图片幻灯片

图 2 微带八木天线结构示意图

Figure 2. Structural schematic diagram of microstrip Yagi antenna

下载: 全尺寸图片幻灯片

图 3 微带八木天线S₁₁曲线图

Figure 3. Simulated S₁₁ curve of microstrip Yagi antenna

下载: 全尺寸图片幻灯片

图 4 微带八木天线增益随频率变化曲线图

Figure 4. Curve of microstrip Yagi antenna gain vs frequency

下载: 全尺寸图片幻灯片

图 5 相控阵天线系统组成与安装示意图

Figure 5. Composition and installation diagram of phased array antenna system

下载: 全尺寸图片幻灯片

图 6 铁路单洞双轨隧道横截面示意图

Figure 6. Cross section diagram of railway single-hole and double-track tunnel

下载: 全尺寸图片幻灯片

图 7 基于隧道环境电磁仿真模型的相位优化流程图

Figure 7. Phase optimized flow chart based on the tunnel environment electromagnetic simulation model

下载: 全尺寸图片幻灯片

图 8 隧道内列车所在位置A与B处的电场强度分布图

Figure 8. Electric field intensity distribution at locations A and B of train in tunnel

下载: 全尺寸图片幻灯片

参考文献(14)

[1]	洪开荣. 我国隧道及地下工程近两年的发展与展望[J]. 隧道建设, 2017, 37(2):123-134. (Hong Kairong. Development and prospects of tunnels and underground works in China in recent two years[J]. Tunnels Construction, 2017, 37(2): 123-134 doi: 10.3973/j.issn.1672-741X.2017.02.002
[2]	杨新, 尤扬, 张代飞, 等. 浅析移动通信隧道覆盖方案与共建共享[J]. 邮电设计技术, 2014, 10:58-64. (Yang Xin, You Yang, Zhang Daifei, et al. Analysis of wireless communication coverage issues and co-construction model of tunnels[J]. Designing Techniques of Posts and Telecommunications, 2014, 10: 58-64 doi: 10.3969/j.issn.1007-3043.2014.10.012
[3]	张昕, 杨晓冬, 郭黎利, 等. 隧道中泄漏同轴电缆和螺旋天线辐射场的比较[J]. 系统工程与电子技术, 2008, 30(5):973-976. (Zhang Xin, Yang Xiaodong, Guo Lili, et al. Comparison of the radiated field between leaky coaxial cable and spiral antenna in the blind zone[J]. Journal of Systems Engineering and Electronics, 2008, 30(5): 973-976 doi: 10.3321/j.issn:1001-506X.2008.05.048
[4]	曹思聪. 受限空间中的新型天线设计及其电波覆盖特性的研究[D]. 北京: 北京交通大学, 2016. Cao Sicong. Design of the novel antennas for confined spaces and research on the characteristics of radio wave coverage[D]. Beijing: Beijing Jiaotong University, 2016
[5]	Mahmoud S F. Wireless transmission in tunnels with non-circular cross section[J]. IEEE Trans Antennas Propag, 2010, 58(2): 613-616. doi: 10.1109/TAP.2009.2037704
[6]	Zhou C. Ray tracing and modal methods for modeling radio propagation in tunnels with rough wall[J]. IEEE Trans Antennas Propag, 2017, 65(5): 2624-2634. doi: 10.1109/TAP.2017.2677398
[7]	Popov A V, Zh u N. Modeling radio wave propagation in tunnels with a vectorial parabolic equation[J]. IEEE Trans Antennas Propag, 2000, 48(9): 1403-1412. doi: 10.1109/8.898773
[8]	张东民, 廖成, 张青洪. 基于分形的粗糙海面三维抛物方程模型及其应用[J]. 电波科学学报, 2016, 31(5):870-876. (Zhang Dongmin, Liao Cheng, Zhang Qinghong. Three-dimensional parabolic equation model for rough sea surface based on fractal method and its application[J]. Chinese Journal of Radio Science, 2016, 31(5): 870-876
[9]	Zhang P, Bai L, Wu Z, et al. Applying the parabolic equation to tropospheric groundwave propagation: A review of recent achievements and significant milestones[J]. IEEE Antennas and Propagation Magazine, 2016, 58(3): 31-44. doi: 10.1109/MAP.2016.2541620
[10]	Zhang X, Sarris C. A Gaussian beam approximation approach for embedding antennas into vector parabolic equation based wireless channel propagation models[J]. IEEE Transactions on Antennas and Propagation, 2017, 65(3): 1301-1310. doi: 10.1109/TAP.2016.2647589
[11]	Marrtelly R, Janaswamy R. An ADI-PE approach for modeling radio transmission loss in tunnels[J]. IEEE Trans Antennas Propag, 2009, 57(6): 1759-1769. doi: 10.1109/TAP.2009.2019891
[12]	Boglaev I. Monotone iterative ADI method for semilinear parabolic problems[J]. BIT Numerical Mathematics, 2015, 55(3): 647-676. doi: 10.1007/s10543-014-0529-6
[13]	Hardin R H, Tappert F D. Application of the split-step Fourier method to the numerical solution of nonlinear and variable coefficient wave equation[J]. Siam Rev, 1973, 15: 423-429.
[14]	Aslan M, Smith K B. Modal analysis of split-step Fourier parabolic equation solutions in the presence of rough surface scattering[J]. Journal of the Acoustical Society of America, 2017, 142(4): 2496-2497.