一种新型双侧漏泄同轴电缆辐射特性分析
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摘要
为了解决室内5G信号覆盖盲区的问题,对单侧漏泄同轴电缆进行了改进,设计了一种新型的双侧漏泄同轴电缆。根据周期结构的槽孔天线阵列理论,以电磁仿真软件Ansoft HFSS作为分析工具,建立双侧开槽的漏缆仿真模型,得到了电场分布、耦合损耗、方向图和S参数的特性;对不同节距和槽长进行仿真,获得了不同辐射模式下,漏缆耦合损耗随节距、槽长变化的曲线。研究结果表明:双侧漏缆比单侧漏缆的电场强度更均匀,方向图更加对称,通信质量更高,为5G信号在室内覆盖提供解决方案。
In order to solve the blind zone problem of 5 G signal indoor, a unilateral leaky coaxial cable is improved and a new bilateral leaky coaxial cable is designed. According to the slot structure of the periodic antenna array theory, an electromagnetic simulation software Ansoft HFSS is used as an analysis tool to establish a simulation model of double-side slotted cable leakage, and the characteristics of electric field distribution, coupling loss, directional pattern and S-parameter are obtained; different pitches and slot lengths are simulated for results which show the coupling loss varies with the pitch and the length of the slot. The research results show that the double-sided leaky cable has a more uniform electric field, more symmetrical directional patterns, higher communication quality than the unilateral leaky cable, and it provides a solution for indoor coverage of 5 G signals.
In order to solve the blind zone problem of 5 G signal indoor, a unilateral leaky coaxial cable is improved and a new bilateral leaky coaxial cable is designed. According to the slot structure of the periodic antenna array theory, an electromagnetic simulation software Ansoft HFSS is used as an analysis tool to establish a simulation model of double-side slotted cable leakage, and the characteristics of electric field distribution, coupling loss, directional pattern and S-parameter are obtained; different pitches and slot lengths are simulated for results which show the coupling loss varies with the pitch and the length of the slot. The research results show that the double-sided leaky cable has a more uniform electric field, more symmetrical directional patterns, higher communication quality than the unilateral leaky cable, and it provides a solution for indoor coverage of 5 G signals.
引文
[1] Al-Falahy N, Alani O Y K. The impact of base station antennas configuration on the performance of millimetre wave 5G networks[A]. Ninth International Conference on Ubiquitous and Future Networks[C], IEEE, 2017. 636-641
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[3] Chandra K, Cao Z, Bruintjes T M, et al. mCRAN: a radio access network architecture for 5G indoor communications[A]. IEEE International Conference on Communication Workshop[C], IEEE, 2015. 300-305
[4] Tonini F, Fiorani M, Furdek M, et al. Radio and transport planning of centralized radio architectures in 5G indoor scenarios[J]. IEEE Journal on Selected Areas in Communications, 2017(99):1-1
[5] Hou Y, Tsukamoto S, Li S, et al. Capacity evaluation of MIMO channel with one leaky coaxial cable used as two antennas over linear-cell environments[J]. IEEE Transactions on Vehicular Technology, 2017, 66(6):4636-4646
[6] Wu Y, Zheng G, Wang T. Performance analysis of MIMO transmission scheme using single leaky coaxial cable[J]. IEEE Antennas & Wireless Propagation Letters, 2017, 16(99):298-301
[7] Kim S T, Yun G H, Park H K. Numerical analysis of the propagation characteristics of multiangle multislot coaxial cable using moment method[J]. IEEE Transactions on Microwave Theory & Techniques, 1998, 46(3):269-279
[8] Wait J R. Electromagnetic field analysis for a coaxial Cable with Periodic Slots[J]. IEEE Transactions on Electromagnetic Compatibility, 1977, 19(1):7-13
[9] 官伯然, 吴飞英. 通信泄漏同轴电缆参数的优化及性能研究[J]. 微波学报, 2010, 26(1):76-80 Guan B R, Wu F Y. The leaky coaxial cable structural parameter optimization and performance investigation[J]. Journal of Microwaves, 2010, 26(1):76-80
[10] 官乔, 樊雪丰, 刘洋,等. VHF频段漏泄同轴电缆埋地传感器研究[J]. 微波学报, 2017, 33(4):16-20 Guan Q, Fan X F, Liu Y, et al. Research on VHF buried sensor using leaky coaxial cable techniques[J].Journal of Microwaves,2017,33(4):16-20
[11] Wang J H, Mei K K. Theory and analysis of leaky coaxial cables with periodic slots[J]. IEEE Transactions on Antennas & Propagation, 2001, 49(12):1723-1732
[12] Dong H K, Eom H J. Radiation of a leaky coaxial cable with narrow transverse slots[J]. IEEE Transactions on Antennas & Propagation, 2007, 55(1):107-110何川侠男,1993年生,硕士生。主要研究方向:电磁兼容,电磁场与微波,数字信号处理。E-mail:hechuanxia@stu.xidian.edu.cn路宏敏男,1960年生,教授,博导。主要研究方向:电磁兼容理论,电磁传感器,电磁带隙结构。官乔 男,1990年生,博士生。主要研究方向:电磁传感器,射频信号处理。赵能武男,1993年生,硕士生。主要研究方向:射频电路。
[2] Khalid N, Abbasi N A, Akan O B. Capacity and coverage analysis for FD-MIMO based THz band 5G indoor Internet of Things[A]. IEEE, International Symposium on Personal, Indoor, and Mobile Radio Communications[C], IEEE, 2018.1-7
[3] Chandra K, Cao Z, Bruintjes T M, et al. mCRAN: a radio access network architecture for 5G indoor communications[A]. IEEE International Conference on Communication Workshop[C], IEEE, 2015. 300-305
[4] Tonini F, Fiorani M, Furdek M, et al. Radio and transport planning of centralized radio architectures in 5G indoor scenarios[J]. IEEE Journal on Selected Areas in Communications, 2017(99):1-1
[5] Hou Y, Tsukamoto S, Li S, et al. Capacity evaluation of MIMO channel with one leaky coaxial cable used as two antennas over linear-cell environments[J]. IEEE Transactions on Vehicular Technology, 2017, 66(6):4636-4646
[6] Wu Y, Zheng G, Wang T. Performance analysis of MIMO transmission scheme using single leaky coaxial cable[J]. IEEE Antennas & Wireless Propagation Letters, 2017, 16(99):298-301
[7] Kim S T, Yun G H, Park H K. Numerical analysis of the propagation characteristics of multiangle multislot coaxial cable using moment method[J]. IEEE Transactions on Microwave Theory & Techniques, 1998, 46(3):269-279
[8] Wait J R. Electromagnetic field analysis for a coaxial Cable with Periodic Slots[J]. IEEE Transactions on Electromagnetic Compatibility, 1977, 19(1):7-13
[9] 官伯然, 吴飞英. 通信泄漏同轴电缆参数的优化及性能研究[J]. 微波学报, 2010, 26(1):76-80 Guan B R, Wu F Y. The leaky coaxial cable structural parameter optimization and performance investigation[J]. Journal of Microwaves, 2010, 26(1):76-80
[10] 官乔, 樊雪丰, 刘洋,等. VHF频段漏泄同轴电缆埋地传感器研究[J]. 微波学报, 2017, 33(4):16-20 Guan Q, Fan X F, Liu Y, et al. Research on VHF buried sensor using leaky coaxial cable techniques[J].Journal of Microwaves,2017,33(4):16-20
[11] Wang J H, Mei K K. Theory and analysis of leaky coaxial cables with periodic slots[J]. IEEE Transactions on Antennas & Propagation, 2001, 49(12):1723-1732
[12] Dong H K, Eom H J. Radiation of a leaky coaxial cable with narrow transverse slots[J]. IEEE Transactions on Antennas & Propagation, 2007, 55(1):107-110何川侠男,1993年生,硕士生。主要研究方向:电磁兼容,电磁场与微波,数字信号处理。E-mail:hechuanxia@stu.xidian.edu.cn路宏敏男,1960年生,教授,博导。主要研究方向:电磁兼容理论,电磁传感器,电磁带隙结构。官乔 男,1990年生,博士生。主要研究方向:电磁传感器,射频信号处理。赵能武男,1993年生,硕士生。主要研究方向:射频电路。