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6G无线通信thz电子学、光子学、等离子体波器件及应用的新进展(续)

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微纳电子技术 2024年第7期 7-23页

作者：赵正平中国电子科技集团有限公司固态微波器件与电路全国重点实验室

移动通信技术已成为现代智能信息网络发展的带动的重要技术之一。继sub-6 GHz和毫米波频段的5G移动通信成为当今移动通信的发展主流之后，预计以亚thz/thz频段的6G移动通信将于2030年到来。综述了用于未来6G无线通信的thz电子学、光子... 详细信息

移动通信技术已成为现代智能信息网络发展的带动的重要技术之一。继sub-6 GHz和毫米波频段的5G移动通信成为当今移动通信的发展主流之后，预计以亚thz/thz频段的6G移动通信将于2030年到来。综述了用于未来6G无线通信的thz电子学、光子学、等离子体波器件及应用的新进展。综述并分析了当今thz器件与电路以及典型应用的关键技术的发展现状与趋势，包含真空电子领域的行波管、碰撞雪崩渡越时间(IMPATT)二极管、thz谐振隧穿二极管(RTD)、thz肖特基势垒二极管(SBD)、thz CMOS、thz SiGe BiCMOS、thz InP HEMT/InP HBT、D波段GaN HEMT、光子学辅助的太赫兹波技术、石墨烯为代表的二维材料器件与电路。thz器件的应用创新重点包含四个方面：通道测量与建模、多输入多输出(MIMO)天线阵列、智能可重构反射阵列以及通信局域网络架构和实验平台。

关键词： 6G无线通信 thz thz电子学 thz光子学 thz等离子体波器件

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高功率太赫兹源

大学科普 2024年第2期18卷 62-65页

作者：肖后秀韩小涛华中科技大学国家脉冲强磁场科学中心武汉

电磁波是物质世界的重要组成。自人类认识到电磁波的存在以来,便开始了对电磁波的探索与利用,人们对于电磁波的认识与开发也不断趋于成熟。然而,在电磁波谱中仍然存在着一段“空白”尚未被人们完全开发,其位于电子学向光子学过渡区间,... 详细信息

电磁波是物质世界的重要组成。自人类认识到电磁波的存在以来,便开始了对电磁波的探索与利用,人们对于电磁波的认识与开发也不断趋于成熟。然而,在电磁波谱中仍然存在着一段“空白”尚未被人们完全开发,其位于电子学向光子学过渡区间,对应电磁波波长为0.03~3mm、频率为0.1~10thz,如图1所示,这一频段也被称为“太赫兹空白”。

关键词：光子学太赫兹源电磁波过渡区间电子学高功率 thz

Triple-Band Metamaterial Inspired Antenna for Future Terahertz(thz)Applications

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Computers, Materials & Continua 2022年第7期72卷 1071-1087页

作者： Adel Y.I.Ashyap S.Alamri S.H.Dahlan Z.Z.Abidin M.Inam Abbasi Huda A.Majid M.R.Kamarudin Y.A.Al-Gumaei M.Hashim Dahri Center for Applied Electromagnetic(EMCenter) Faculty of Electrical and Electronic EngineeringUniversiti Tun Hussein Onn Malaysia(UTHM)Batu Pahat86400JohorMalaysia Faculty of Engineering Electrical Engineering Dep. Al Baha UniversityAlaqiq65799Al-BahaSaudi Arabia Advanced Telecommunication Research Center(ATRC) Faculty of Electrical and Electronic EngineeringUniversiti Tun Hussein Onn Malaysia(UTHM)Batu Pahat86400JohorMalaysia Faculty of Electrical and Electronic Engineering Technology Universiti Teknikal Malaysia MelakaHang Tua Jaya76100Durian TunggalMelakaMalaysia Department of Mathematics Physicsand Electrical EngineeringNorthumbria UniversityNE18ST Newcastle Upon TyneUK Department of Electronic Engineering Dawood University of Engineering and TechnologyKarachi74800Pakistan

For future healthcare in the terahertz(thz)band,a triple-band microstrip planar antenna integrated with metamaterial(MTM)based on a polyimide substrate is presented.The frequencies of operation are 500,600,and 880 GHz.The triple-band capability is accomplished by etching metamaterial on the patch without affecting the overall antenna size.Instead of a partial ground plane,a full ground plane is used as a buffer to shield the body from back radiation emitted by the antenna.The overall dimension of the proposed antenna is 484×484μm^(2).The antenna’s performance is investigated based on different crucial factors,and excellent results are demonstrated.The gain for the frequencies 500,600,880GHz is 6.41,6.77,10.1 dB,respectively while the efficiency for the same frequencies is 90%,95%,96%,respectively.Further research has been conducted by mounting the presented antenna on a single phantom layer with varying dielectric constants.The results show that the design works equally well with and without the phantom model,in contrast to a partially ground antenna,whose performance is influenced by the presence of the phantom model.As a result,the presented antenna could be helpful for future healthcare applications in the thz band.

关键词： thz metamaterial triple-band wireless body area networks(WBAN)

Multi-Band Metamaterial Antenna for Terahertz Applications

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Computers, Materials & Continua 2023年第1期74卷 1765-1782页

作者： Adel Y.I.Ashyap M.Inam M.R.Kamarudin M.H.Dahri Z.A.Shamsan K.Almuhanna F.Alorifi Faculty of Engineering Technology Universiti Tun Hussein Onn Malaysia(UTHM)Batu Pahat86400JohorMalaysia Centre for Telecommunication Research&Innovation(CETRI) Faculty of Electrical and Electronic Engineering TechnologyUniversiti Teknikal Malaysia Melaka(UTeM)Melaka76100Malaysia Department of Electronic Engineering Dawood University of Engineering and Technology74800KarachiPakistan Electrical Engineering Department College of EngineeringImam Mohammad Ibn Saud Islamic UniversityRiyadhSaudi Arabia

A multi-band metamaterial antenna is proposed to operate at the terahertz(thz)band for medical applications.The proposed structure is designed on a polyimide as a support layer,and its radiating elements are made of graphene.Initially,the design is started with a conventional shape showing a single operating frequency at 1.1 thz.To achieve a multi-band operating frequency,the conventional shape was replaced with the proposed metamaterial as a radiating patch that has properties not exist in nature.The multi-band frequencies are obtained without compromising the overall size of the design.The overall size is 600×600×25μm^(3).The operating frequencies are 0.36,0.49,0.69,0.87,and 1.04 thz.A full ground plane is used to behave as isolation between the design and the human body model.The proposed design is investigated on free space and on the human body model,showing excellent performance in both cases.The achieved gains for the following frequencies 0.36,0.49,0.69,0.87,and 1.04 thz are 4.81,6.5,8.41,6.02,and 7.96 dB,respectively,while the efficiencies are 83.91%,96.28%,90.80%,91.71%,and 92.99%,respectively.The conventional design was modified to have a partial ground to show the benefit of using the full ground.The design is loaded on the human body model and its performance is affected.The efficiency and gain are 6.61 dB and 95.58.7%for the case of no human body model,and 4.26 dB and 40.30%for the case of using a human body model.Hence,the proposed metamaterial antenna will be useful for future medical applications in the thz band.

关键词： thz 5G a multi-band metamaterials 6G WBAN

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新产品新技术(201)

印制电路信息 2024年第5期32卷 69-69页

作者：龚永林不详

新一代移动通讯太赫兹(thz)技术。5G通讯尚未完全普及,6G技术已在研究摸索,未来6G将聚焦在太赫兹(Terahertz,thz)频段。太赫兹频率范围是0.1~10 thz,对应电磁波波长为3 mm~30μm,其中100~300 GHz称为次太赫兹(sub thz)。关于6G太赫兹通... 详细信息

新一代移动通讯太赫兹(thz)技术。5G通讯尚未完全普及,6G技术已在研究摸索,未来6G将聚焦在太赫兹(Terahertz,thz)频段。太赫兹频率范围是0.1~10 thz,对应电磁波波长为3 mm~30μm,其中100~300 GHz称为次太赫兹(sub thz)。关于6G太赫兹通讯关键组件,像是数字信号处理器(DSP)、数字模拟转换器(DAC)及模拟数字转换器(ADC)等芯片,主要采用CMOS高阶制程,其技术挑战着重在IC设计、制造和封测。可预见的是未来十年太赫兹发展将突飞猛进,需规划太赫兹关键技术布局,以期在6G太赫兹应用市场抢得先机。

关键词：模拟数字转换器数字模拟转换器移动通讯太赫兹频率范围 IC设计 thz 抢得先机

Intense broadband thz generation from femtosecond laser filamentation

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Chinese Optics Letters 2013年第1期11卷 25-30页

作者： Tie-Jun Wang Shuai Yuan Yanping Chen See Leang Chin Centre d'Optique Photonique et Laser (COPL) and Département de Physique de Génie Physique et D'Optique Université Laval Québec

Broadband and energetic terahertz （thz） pulses can be remotely generated in air through filamentation. We review such thz generation and detection in femtosecond Ti-sapphire laser induced remote filaments. New results are presented on the direct relationship between thz generation in a two color filament and induced N2 fluorescence through population trapping during molecular alignment and revival in air. This further supports the new technique of remote thz detection in air through the sensitive measurement of N2 fluorescence.

关键词： thz Intense broadband thz generation from femtosecond laser filamentation

thz Generation by Optical Rectification and Competition with Other Nonlinear Processes

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Chinese Physics Letters 2008年第5期25卷 1868-1870页

作者：赵振宇 HAMEAU Sophie TIGNON JerSme Laboratoire Pierre Aigrain Ecole Normale Supdrieure 24 rue Lhomond F-75005 Paris France

我们在场在兆兆赫(thz ) 之间的比赛的研究由光 recti 的产生。阳离子在 ZnTe 晶体，二光子的吸收，第二泛音代和免费搬运人的吸收。在 thz 范围的二光子的非线性的吸收系数，第二泛音产生效率和免费搬运人的吸收系数独立地被测量。事... 详细信息

我们在场在兆兆赫(thz ) 之间的比赛的研究由光 recti 的产生。阳离子在 ZnTe 晶体，二光子的吸收，第二泛音代和免费搬运人的吸收。在 thz 范围的二光子的非线性的吸收系数，第二泛音产生效率和免费搬运人的吸收系数独立地被测量。事件泵地被显示被二光子的吸收弄空， thz 放射被显示被减少，由免费搬运人的吸收，在集中之上。在紧张的集中之上的产生 thz 放射的减小被解释，如果一个人也从亚波长 thz 来源考虑衍射效果。

关键词： thz 光学整流非线性程序光电子

Generating quasi-single-cycle thz pulse from frequency-chirped electron bunch train and a tapered undulator

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High Power Laser Science and Engineering 2016年第1期4卷 5-8页

作者： Zhuoran Ma Zhe Wang Feichao Fu Rui Wang Dao Xiang Key Laboratory for Laser Plasmas (Ministry of Education) Department of Physics and AstronomyShanghai Jiao Tong University IFSA Collaborative Innovation Center Shanghai Jiao Tong University

We propose a proof-of-principle experiment to test a new scheme to produce a single-cycle radiation pulse in free-electron lasers(FELs). Here, a few α-BBO crystals will be first used to produce an equally spaced laser pulse train.Then, the laser pulse train illuminates the cathode to produce a frequency-chirped electron bunch train in a photocathode rf gun. Finally, the frequency-chirped electron bunch train passes through a tapered undulator to produce a quasi-single-cycle thz pulse. This experiment should allow comparison and confirmation of predictive models and scaling laws, and the preliminary experimental results will also be discussed.

关键词： electron bunch train single-cycle thz pulse tapered undulator

Phase dependence of third-order harmonic generation in gases induced by two-color laser field

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Chinese Optics Letters 2023年第5期21卷 1-5页

作者：孟从森宋盼吕治辉王小伟张栋文赵增秀袁建民 Department of Physics National University of Defense TechnologyChangsha 410073China Department of Physics Graduate School of China Academy of Engineering PhysicsBeijing 100193China

We experimentally demonstrate third-harmonic generation(THG)in gases ionized by a femtosecond laser pulse superimposed on its second-harmonic(SH).The mechanism of THG has been investigated,and it demonstrates that a third-order nonlinear process dominates at low pump intensity.Asymmetric third-harmonic(TH)spectra are observed at different time delays in two color fields,which are attributed to the process of the four-wave mixing(FWM)of the broad spectrum of pump pulses.A joint measurement on the terahertz(thz)and the TH is performed.It reveals that the optimized phase for the THG jumps from 0 to 0.5πas the pump intensity increases,which is different from the thz being a constant,and indicates that the THG arises from the nonlinearity of the third-order bound electrons to the tunnel-ionization current.

关键词： third-harmonic generation thz