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From Terahertz Imaging to Terahertz Wireless Communications Review
Yi Huang,Yaochun Shen,Jiayou Wang
Engineering 2023, Volume 22, Issue 3, Pages 106-124 doi: 10.1016/j.eng.2022.06.023
Terahertz (THz) technology is probably best known to the public as a powerful tool for imaging, since it has been applied in security and medical scanning, resulting in numerous impressive images that would be unobtainable using other technologies. With the roll-out of 5G mobile networks, research into 6G wireless communications is heating up. It is envisioned that THz technology will be used for 6G and future wireless communications. In this paper, we review how THz technology has been employed for imaging and wireless communications, identify state-of-the-art developments in the field, and then examine and compare common devices and issues in both applications. The possibility of integrating THz imaging/sensing and wireless communications is considered, and challenges and future perspectives are presented and discussed. It is shown that THz technology is indeed a key enabling technology for both imaging and wireless communications in the future.
Keywords: Communications Imaging Terahertz technology Wireless communications
A high-precision terahertz retrodirective antenna array with navigation signal at a different frequency Correspondence
Zhong-bo ZHU, Wei-dong HU, Tao QIN, Sheng LI, Xiao-jun LI, Jiang-jie ZENG, Xian-qi LIN, Leo P. LIGTHART
Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 3, Pages 377-383 doi: 10.1631/FITEE.1900581
Keywords: Terahertz Retrodirective antenna array Terahertz communications Conjugate mixing
Frequency–angle two-dimensional reflection coefficient modeling based on terahertz channel measurement Correspondence
Zhaowei CHANG, Jianhua ZHANG, Pan TANG, Lei TIAN, Li YU, Guangyi LIU, Liang XIA,changzw12345@bupt.edu.cn,jhzhang@bupt.edu.cn
Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 4, Pages 626-632 doi: 10.1631/FITEE.2200290
Keywords: 太赫兹通信;反射系数建模;入射角;建筑材料;菲涅耳模型
Graphene-metasurface for wide-incident-angle terahertz absorption Research
Ri-hui Xiong, Xiao-qing Peng, Jiu-sheng Li,lijsh2008@126.com
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 3, Pages 287-436 doi: 10.1631/FITEE.2000079
Keywords: 石墨烯超表面;太赫兹吸收器;欧米伽形石墨烯图案
Standardization of 6G Key Technologies: Thoughts and Suggestions
Luo Yan, Quan Wei, Zhang Hongke
Strategic Study of CAE 2023, Volume 25, Issue 6, Pages 18-26 doi: 10.15302/J-SSCAE-2023.06.003
Research on the sixth-generation mobile communication (6G) technology starts gradually after the commercialization of the fifth-generation mobile communication (5G) technology, thus to support the development of digital economy and the construction of digital infrastructure. Countries worldwide are now competing for the establishment of 6G standards. This study reviews the development status of 6G standards from the aspects of 6G technology development in major developed countries and regions, international cooperation in 6G standards development, and 6G technology development in China. Moreover, it explores the integrated application and standardization progresses of 6G technology, involving the standardization of computing power networks, blockchain, digital twins, artificial intelligence, and holographic communications. China can make plans in advance for the standardization of 6G key technologies, focusing on terahertz, smart metasurface, smart holographic radio, super-large-scale MIMO, and communicationsperception integration technologies. Furthermore, the following suggestions are proposed: (1) strengthening the independent innovation of 6G key technologies to promote the independent development of 6G basic industries; (2) accelerating cross-industry cooperation and innovation to establish the standards system for 6G key technologies; and (3) deepening international cooperation on 6G technologies to help create an open and win-win global industrial ecology.
Keywords: 6G standards establishment terahertz computing power network communications and perception integration
A mechanical reliability study of 3-dB waveguide hybrid couplers in submillimeter and terahertz bands Research Articles
Zhongqian Niu, Bo Zhang, Daotong Li, Dongfeng Ji, Yang Liu, Yinian Feng, Tianchi Zhou, Yaohui Zhang, Yong Fan,zhangbouestc@yeah.net
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 8, Pages 1104-1113 doi: 10.1631/FITEE.2000229
Keywords: 定向耦合器;3-dB分支波导定向耦合器;亚毫米波器件;太赫兹电路;机械可靠性
Terahertz time-domain spectroscopy and micro-cavity components for probing samples: a review Special Feature on Precision Measurement and Instr
Lin CHEN, Deng-gao LIAO, Xu-guang GUO, Jia-yu ZHAO, Yi-ming ZHU, Song-lin ZHUANG
Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 5, Pages 591-607 doi: 10.1631/FITEE.1800633
We give a brief review of the developments in terahertz time-domain spectroscopy (THz-TDS) systems and microcavity components for probing samples in the University of Shanghai for Science and Technology. The broadband terahertz (THz) radiation sources based on GaAs m-i-n diodes have been investigated by applying high electric fields. Then, the free space THz-TDS and fiber-coupled THz-TDS systems produced in our lab and their applications in drug/cancer detection are introduced in detail. To further improve the signal-to-noise ratio (SNR) and enhance sensitivity, we introduce three general micro-cavity approaches to achieve tiny-volume sample detection, summarizing our previous results about their characteristics, performance, and potential applications.
Keywords: Terahertz (THz) time-domain spectroscopy Micro-cavity Metal holes array Waveguide cavities Spoof localized surface plasmons (LSPs)
Development Strategy of Free Electron Laser Technology in China
Li Peng, Li Ming, Wu Dai, Zhou Zheng, Tang Chun
Strategic Study of CAE 2020, Volume 22, Issue 3, Pages 35-41 doi: 10.15302/J-SSCAE-2020.03.006
Free electron laser (FEL) is a large-scale scientific research device based on electron linear accelerator and has been widely used in basic scientific research such as condensed matter physics, advanced materials and surface physics, atomic and molecular physics, chemistry, and biology. The advancement of FEL technology will promote the light sources to develop towards higher power and shorter wavelength to satisfy the increasing demands of users. This study introduces the necessity of development based on the characteristics of the FEL technology and summarizes the current development status of the technology in China and abroad. It also analyzes the existing problems in its development in China and proposes ideas and goals for the development of FEL technology in China. By 2035, China should focus on making breakthroughs in long-wave FEL, X-ray FEL, new FEL, and FEL-based extreme ultraviolet (EUV) lithography light source technologies. Based on the research and analysis, this study proposes some suggestions for the steady and healthy development of the FEL technology in China, including making scientific development strategies, raising investment in fundamental research to promote independent innovation, strengthening multi-party cooperation to promote the transformation of scientific and technological achievements, promoting market application, and strengthening personnel training.
Keywords: free electron laser infrared-terabertz FEL extreme ultraviolet-FEL X-ray FEL
Channelmeasurements and models for 6G: current status and future outlook Review Articles
Jian-hua ZHANG, Pan TANG, Li YU, Tao JIANG, Lei TIAN
Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 1, Pages 39-61 doi: 10.1631/FITEE.1900450
Keywords: Channel measurements Channel models Sixth generation Terahertz Industrial Internet of Things Space-air-ground integrated network Machine learning
Novel X-ray and Optical Diagnostics for Studying Energetic Materials: A Review Review
Yiyang Zhang, Sen Chen, Yang Cai, Lei Lu, Duan Fan, Jinchun Shi, Junyu Huang, Sheng-Nian Luo
Engineering 2020, Volume 6, Issue 9, Pages 992-1005 doi: 10.1016/j.eng.2020.06.019
Thermomechanical, physical, and chemical processes in energetic materials (EMs) during manufacturing and processing or under external stimuli such as shock compression, involve multiple temporal and spatial scales. Discovering novel phenomena, acquiring new data, and understanding underlying mechanisms all require temporally and spatially resolved diagnostics. Here, we present a brief review of novel diagnostics that are either emerging or have existed but rarely been applied to EMs, including two-dimensional (2D) and three-dimensional (3D) X-ray imaging, X-ray diffraction, coherent X-ray diffraction imaging, small angle X-ray scattering, terahertz and optical absorption/emission spectroscopy, and one-dimensional (1D) and 2D laser-based velocity/displacement interferometry. Typical spatial scales involved are lattice (nanometer and micrometer) and typical temporal scales (femtosecond, picosecond, nanosecond, microsecond, and millisecond). The targeted scientific questions and engineering problems include defects, strengths, deformations, hot spots, phase changes, reactions, and shock sensitivities. Basic principles of measurement and data analysis, and illustrative examples of these are presented. Advanced measurements and experimental complexities also necessitate further development in corresponding data analysis and interpretation methodologies, and multiscale modeling
Keywords: Energetic materials X-ray Terahertz and optical diagnostics Multiscale measurements
Consideration on Developing Mobile Satellite Communication
Zhang Naitong,Zhang Zhongzhao,Chu Haibin,Liu Huijie
Strategic Study of CAE 2002, Volume 4, Issue 10, Pages 11-16
Three kinds of international constellation communication system are introduced in this paper, and the constitution, configuration, function, and existing problems of some representative systems are analyzed. The paper discusses the development and trend of the satellite communication system, and then some viewpoints on developing mobile satellite communication system are put forward.
Keywords: mobile satellite communication constellation communication system broad band service
Wu Hequan
Strategic Study of CAE 2000, Volume 2, Issue 8, Pages 69-75
The article firstly reviews the evolution of the 1st generation (analogy) mobile communication system and the 2nd generation (digital) mobile communication system, and predicts that deployment of mobile communication systems will be enter a development period at a more great rate in the next decate. The mobile communication service will extend from voice to data, and the mobile communication technology will transits from circuit mode to packet mode. Following briefly addressing the second and half generation mobile communication system (2.5 GM) that will come to application soon, introduces the 3rd generation mobile communication (3 GM) for broadband multimedia application. Some schemes as mainstream of 3GM RTT (radio transmission technology) standards and the key technologies, especially technical features of TD - SCDMA presented by China, are emphatically described. Finally, The transition strategy from 2GM to 3GM and the development trend of 3GM core network are prospected in this article.
Keywords: mobile communication third generation mobile communication CDMA TD - SCDMA
The Development Trent of Advanced Communication Technology
Bi Houjie
Strategic Study of CAE 2000, Volume 2, Issue 8, Pages 31-34
In this paper, the development trend of advanced communication network terminals is summarized and analyzed. It is instructive to point out that industrialization of communication software and development of the EDA technology must be strengthened in order to meet the challenge of entering WTO.
Keywords: telecommunication network grouping multimedium mobility communication terminal
Yao Fuqiang
Strategic Study of CAE 2005, Volume 7, Issue 5, Pages 24-29
Based on expatiating the covering range of military anti-jammjing communication equipments and analyzing the development current of anti-jamming communication abroad, this paper researches emphatically the development strategy of military anti-jamming communication engineering, and puts forward some suggestions in this field, for the new military revolution and informzation construction of the PLA.
Keywords: military communication anti-jamming electronic defence
Meteorological Telecommunication Network &Computer Systems Engineering
Li Huang,Wang Chunhu
Strategic Study of CAE 2000, Volume 2, Issue 9, Pages 101-106
As the information infrastructure for the meteorological services in China, meteorological telecommunication networks and computer systems have made great progress in terms of networking and computer applications. For the 21st century, the meteorological services in China will continue to be improved with leaps and bounds, the meteorological information infrastructure will also be further strengthened and along developed the expansion and advance of the national information infrastructure. This article introduces the developments regarding both meteorological telecommunication networks and computer systems, and presents the status of the construction in modernized system projects of China Meteorological Administration as well as it´s engineering applications .
Keywords: telecommunication network computer systems engineering
Title Author Date Type Operation
From Terahertz Imaging to Terahertz Wireless Communications
Yi Huang,Yaochun Shen,Jiayou Wang
Journal Article
A high-precision terahertz retrodirective antenna array with navigation signal at a different frequency
Zhong-bo ZHU, Wei-dong HU, Tao QIN, Sheng LI, Xiao-jun LI, Jiang-jie ZENG, Xian-qi LIN, Leo P. LIGTHART
Journal Article
Frequency–angle two-dimensional reflection coefficient modeling based on terahertz channel measurement
Zhaowei CHANG, Jianhua ZHANG, Pan TANG, Lei TIAN, Li YU, Guangyi LIU, Liang XIA,changzw12345@bupt.edu.cn,jhzhang@bupt.edu.cn
Journal Article
Graphene-metasurface for wide-incident-angle terahertz absorption
Ri-hui Xiong, Xiao-qing Peng, Jiu-sheng Li,lijsh2008@126.com
Journal Article
Standardization of 6G Key Technologies: Thoughts and Suggestions
Luo Yan, Quan Wei, Zhang Hongke
Journal Article
A mechanical reliability study of 3-dB waveguide hybrid couplers in submillimeter and terahertz bands
Zhongqian Niu, Bo Zhang, Daotong Li, Dongfeng Ji, Yang Liu, Yinian Feng, Tianchi Zhou, Yaohui Zhang, Yong Fan,zhangbouestc@yeah.net
Journal Article
Terahertz time-domain spectroscopy and micro-cavity components for probing samples: a review
Lin CHEN, Deng-gao LIAO, Xu-guang GUO, Jia-yu ZHAO, Yi-ming ZHU, Song-lin ZHUANG
Journal Article
Development Strategy of Free Electron Laser Technology in China
Li Peng, Li Ming, Wu Dai, Zhou Zheng, Tang Chun
Journal Article
Channelmeasurements and models for 6G: current status and future outlook
Jian-hua ZHANG, Pan TANG, Li YU, Tao JIANG, Lei TIAN
Journal Article
Novel X-ray and Optical Diagnostics for Studying Energetic Materials: A Review
Yiyang Zhang, Sen Chen, Yang Cai, Lei Lu, Duan Fan, Jinchun Shi, Junyu Huang, Sheng-Nian Luo
Journal Article
Consideration on Developing Mobile Satellite Communication
Zhang Naitong,Zhang Zhongzhao,Chu Haibin,Liu Huijie
Journal Article
Third Generation Mobile Communication——The IP Oriented Application of Modern Wireless Communication Technology
Wu Hequan
Journal Article
Researches and Suggestions on Development Strategy of Military Anti-jamming Communication Engineering
Yao Fuqiang
Journal Article