基于环形OAM阵列天线的复用传输系统研究
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摘要
轨道角动量(OAM)复用传输是一种新兴的无线电传输技术。利用单馈电点环形微带矩形贴片天线的辐射特性来产生C波段OAM的螺旋波束,并制作出环形OAM阵列天线。为验证OAM阵列天线的传输性能,将OAM天线与通用软件无线电外设(USRP)相结合,利用软件无线电(SDR)技术搭建一个OAM无线传输系统。经实验证明该系统可在真实的信道环境中实现音频信号的实时传输。鉴于OAM复用传输技术具有传输安全性好、频谱利用率高的优势,OAM系统的搭建在无线通信中具有一定实际意义,在未来通信领域具有潜在应用价值。
The multiplex transmission of orbital angular momentum(OAM) is a new radio transmission technology. In this paper, the radiation characteristics of a single-feed point annular microstrip rectangular patch antenna are used to generate a C-band OAM helical beam, and a ring OAM array antenna is fabricated. To verify the transmission performance of the OAM array antenna, the OAM antenna is combined with the Universal Software Radio Peripheral(USRP) to build an OAM wireless transmission system using Software Defined Radio(SDR) technology. The experimental results show that the system can realize real-time transmission of audio signals in real channel environment. Because the OAM multiplexing transmission technology has the advantages of good transmission security and high spectrum utilization rate, so the construction of OAM system has certain practical significance in wireless communication, and it has potential application in the future communication field.
The multiplex transmission of orbital angular momentum(OAM) is a new radio transmission technology. In this paper, the radiation characteristics of a single-feed point annular microstrip rectangular patch antenna are used to generate a C-band OAM helical beam, and a ring OAM array antenna is fabricated. To verify the transmission performance of the OAM array antenna, the OAM antenna is combined with the Universal Software Radio Peripheral(USRP) to build an OAM wireless transmission system using Software Defined Radio(SDR) technology. The experimental results show that the system can realize real-time transmission of audio signals in real channel environment. Because the OAM multiplexing transmission technology has the advantages of good transmission security and high spectrum utilization rate, so the construction of OAM system has certain practical significance in wireless communication, and it has potential application in the future communication field.
引文
[1] 李强, 孙学宏, 庞丹旭,等. 基于多模态OAM电磁涡旋波的L波段宽频阵列天线设计[J]. 电子学报, 2016, 44(12):2954-2959 Li Q, Sun X H, Pang D X, et al. The design of L band broadband array antenna based on multi-modal OAM vortex electromagnetic wave[J]. Acta Eletronica Sinica, 2016, 44(12):2954-2959
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[10] Tamburini F, Mari E, Sponselli A, et al. Encoding many channels on the same frequency through radio vorticity: first experimental test[J]. New Journal of Physics, 2011, 14(11):78001-78004
[11] Mari E, Spinello F, Oldoni M, et al. Near-field experimental verification of separation of OAM channels[J]. IEEE Antennas & Wireless Propagation Letters, 2015, 14:556-558
[12] Sasaki E, Hirabc M, Maru T, et al. Pragmatic OAM with polarization multiplexing transmission for future 5G ultra-high capacity radio[A]. 2016 European Microwave Conference[C], 2016. 154-157
[13] Lee D, Sasaki H, Fukumoto H, et al. Orbital angular momentum (OAM) multiplexing: an enabler of a new era of wireless communications[J]. IEICE Transactions on Communications, 2017,100(7):1044-1063
[14] Willner A E, Ren Y, Xie G, et al. Recent advances in high-capacity free-space optical and radio-frequency communications using orbital angular momentum multiplexing[J]. Phil Trans R Soc A, 2017, 375(2087): 20150439
[15] 张继龙,卢春兰,钱祖平,等. 一种新型圆极化贴片天线的研究[J]. 微波学报, 2009, 25(3):31-33 Zhang J L, Lu C L, Qian Z P, et al. A new type of circular polarized patch antenna [J]. Journal of Microwaves, 2009, 25 (3): 31-33
[16] Sarijari M A, Marwanto A, Fisal N, et al. Energy detection sensing based on GNU radio and USRP: An analysis study[A]. 2009 IEEE 9th Malaysia International Conference on Communications (MICC)[C], 2009. 338-342孙牧歌女,1991年生,硕士生。主要研究方向:通信系统工程及通信网络管理。E-mail:nxusmg@163.com孙学宏(通信作者) 男,1974年生,教授,硕士生导师。主要研究方向:新一代宽带无线通信技术与网络。E-mail:nxsunxh@163.com 常伟 男,1993年生,硕士生。主要研究方向:通信系统工程及通信网络管理。E-mail: wiewiebobo@163.com席国法男,1992年生,硕士生。主要研究方向:通信系统工程及通信网络管理。E-mail: xiguofa@163.com
[2] Barnett S M. Optical angular-momentum flux[J]. Optical Angular Momentum,2001,86(7):365
[3] Wang J, Yang J Y, Fazal I M, et al. Terabit free-space data transmission employing orbital angular momentum multiplexing[J]. Nature Photonics, 2012, 6(7): 488-496
[4] Mohammadi S M, Daldorff L K S, Bergman J E S, et al. Orbital angular momentum in radio—a system study[J]. IEEE Transactions on Antennas and Propagation, 2010, 58(2): 565-572
[5] Allen L, Beijersbergen M W, Spreeuw R J C, et al. Orbital angular momentum of light and the transformation of Laguerre-Gaussian laser modes[J]. Physical Review An Atomic Molecular & Optical Physics, 1992, 45(11):8185-8189
[6] Zhang Z, Zheng S, Chen Y, et al. The capacity gain of orbital angular momentum based multiple-input-multiple-output system[J]. Scientific Reports, 2016, 6: 25418
[7] Gong Y, Wang R, Deng Y, et al. Generation and transmission of OAM-carrying vortex beams using circular antenna array[J]. IEEE Transactions on Antennas and Propagation, 2017, 65(6): 2940-2949
[8] Liu B, Cui Y, Li R. A broadband dual-polarized dual-OAM-mode antenna array for OAM communication[J]. IEEE Antennas and Wireless Propagation Letters, 2017, 16: 744-747
[9] Tamburini F, Mari E, Thide B, et al. Experimental verification of photon angular momentum and vorticity with radio techniques[J]. Applied Physics Letters, 2011, 99(20):204102
[10] Tamburini F, Mari E, Sponselli A, et al. Encoding many channels on the same frequency through radio vorticity: first experimental test[J]. New Journal of Physics, 2011, 14(11):78001-78004
[11] Mari E, Spinello F, Oldoni M, et al. Near-field experimental verification of separation of OAM channels[J]. IEEE Antennas & Wireless Propagation Letters, 2015, 14:556-558
[12] Sasaki E, Hirabc M, Maru T, et al. Pragmatic OAM with polarization multiplexing transmission for future 5G ultra-high capacity radio[A]. 2016 European Microwave Conference[C], 2016. 154-157
[13] Lee D, Sasaki H, Fukumoto H, et al. Orbital angular momentum (OAM) multiplexing: an enabler of a new era of wireless communications[J]. IEICE Transactions on Communications, 2017,100(7):1044-1063
[14] Willner A E, Ren Y, Xie G, et al. Recent advances in high-capacity free-space optical and radio-frequency communications using orbital angular momentum multiplexing[J]. Phil Trans R Soc A, 2017, 375(2087): 20150439
[15] 张继龙,卢春兰,钱祖平,等. 一种新型圆极化贴片天线的研究[J]. 微波学报, 2009, 25(3):31-33 Zhang J L, Lu C L, Qian Z P, et al. A new type of circular polarized patch antenna [J]. Journal of Microwaves, 2009, 25 (3): 31-33
[16] Sarijari M A, Marwanto A, Fisal N, et al. Energy detection sensing based on GNU radio and USRP: An analysis study[A]. 2009 IEEE 9th Malaysia International Conference on Communications (MICC)[C], 2009. 338-342孙牧歌女,1991年生,硕士生。主要研究方向:通信系统工程及通信网络管理。E-mail:nxusmg@163.com孙学宏(通信作者) 男,1974年生,教授,硕士生导师。主要研究方向:新一代宽带无线通信技术与网络。E-mail:nxsunxh@163.com 常伟 男,1993年生,硕士生。主要研究方向:通信系统工程及通信网络管理。E-mail: wiewiebobo@163.com席国法男,1992年生,硕士生。主要研究方向:通信系统工程及通信网络管理。E-mail: xiguofa@163.com