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2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)最新文献

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Graphene-based THz Antenna with A Graphene-metal CPW Feeding Structure 石墨烯-金属CPW馈电结构的太赫兹天线
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015773
Bin Zhang, Jingwei Zhang, Chengguo Liu, Z. Wu
{"title":"Graphene-based THz Antenna with A Graphene-metal CPW Feeding Structure","authors":"Bin Zhang, Jingwei Zhang, Chengguo Liu, Z. Wu","doi":"10.1109/UCMMT45316.2018.9015773","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015773","url":null,"abstract":"In this paper, a graphene-based patch antenna is proposed with a realistic CPW feeding and biasing structure. To provide the driving signal, a stacked metal-graphene structure is utilized with GSG probe as the feeding structure of the graphene antenna. Moreover, a biasing stub based on the stacked metal-graphene structure is attached at the end of the graphene patch for tuning the graphene properties. The proposed graphene antenna is simulated in CST microwave studio. The results show that the proposed structure work well with the graphene-based antenna at the frequency band of interest.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121987923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High Resolution Analysis of Targets Based on Plasma Cylinder 基于等离子体圆柱的目标高分辨率分析
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015651
Chao Wang, Lijian Xia, Fenglian Xie, B. Yuan, Junfa Mao
{"title":"High Resolution Analysis of Targets Based on Plasma Cylinder","authors":"Chao Wang, Lijian Xia, Fenglian Xie, B. Yuan, Junfa Mao","doi":"10.1109/UCMMT45316.2018.9015651","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015651","url":null,"abstract":"Motivated by classic laws of refraction which has been realized in optical systems, a scattered microwave modulated by plasma cylinder is proposed to obtain focused high-resolution distances of targets. Such a radar coincidence signal processing method resolves targets based on nonlinear microwave refracted by plasma cylinders which is quite different from conventional radar resolving techniques where target distance depending on 3 dB bandwidth and Doppler analysis. By constructing the mathematic model, the amplitude and phase conditions of transmitting microwaves are analyzed for achieving high-resolution distance of targets. Furthermore, the resolution experiments are conducted in chamber and distance of 12.6 cm of two pyramidal horn antennas are resolved.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"74 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123098143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of Characteristics of Ultra-Wideband Planar Array Based on Design of Array Antenna 基于阵列天线设计的超宽带平面阵列特性分析
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/ucmmt45316.2018.9015759
Qingchao Zhu
{"title":"Analysis of Characteristics of Ultra-Wideband Planar Array Based on Design of Array Antenna","authors":"Qingchao Zhu","doi":"10.1109/ucmmt45316.2018.9015759","DOIUrl":"https://doi.org/10.1109/ucmmt45316.2018.9015759","url":null,"abstract":"In order to study the AVSWR characteristics of ultra-wideband planar array, the simulations of all-metal Vivaldi antenna, which consist of the periodic boundary model and the antenna array, are finished through the commercial software. The AVSWR's result of the periodic boundary is compared with the result of the array which is obtained by calculating the coupling between elements. The result of comparison shows that the characteristics of central elements are closer to the result of ideal periodic boundary and it is feasible to use periodic boundary model to optimize the array antenna when the array's scale is large enough.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128062037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A D-Band Up-Conversion Mixer With 7.5 dB Gain and 40 dB LO-RF Isolation in 65-nm CMOS Technology 采用65纳米CMOS技术，具有7.5 dB增益和40 dB LO-RF隔离的d波段上转换混频器
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015737
Yuchao Lei, G. Su, Zemin Su, Xiandong Liu, Lingling Sun
{"title":"A D-Band Up-Conversion Mixer With 7.5 dB Gain and 40 dB LO-RF Isolation in 65-nm CMOS Technology","authors":"Yuchao Lei, G. Su, Zemin Su, Xiandong Liu, Lingling Sun","doi":"10.1109/UCMMT45316.2018.9015737","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015737","url":null,"abstract":"This paper presents a $D$-band up-conversion mixer with 7.5 dB gain and 40 dB LO-RF isolation by using 65-nm CMOS technology. The proposed up-conversion mixer adopts double-balanced Gilbert cell with negative resistance compensation (NRC) and resistive-feedback amplifier (RFA) to improve conversion gain (CG). At LO and RF ports, the transformer balun is designed to realize mutual transformation between single-ended signal and differential signal. The output P1dB of the proposed mixer is −6dBm, the average LO-RF isolation is less than −40dB at 139~151GHz. The compact chip size is 480 × 310 μm2 including all pads. The proposed mixer dissipates total DC power consumption of 9mW at 1.2-V supply voltage.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"117 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125723652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
340GHz High Speed Communication System Based on Solid State Transceiver 基于固态收发器的340GHz高速通信系统
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015917
Zhongqian Niu, Bo Zhang, Yilin Yang, D. Ji, Ke Yang, Yong Fan
{"title":"340GHz High Speed Communication System Based on Solid State Transceiver","authors":"Zhongqian Niu, Bo Zhang, Yilin Yang, D. Ji, Ke Yang, Yong Fan","doi":"10.1109/UCMMT45316.2018.9015917","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015917","url":null,"abstract":"In this paper, a high speed communication system based on all solid state transceiver is presented. This paper gives a further study on the 340GHz subharmonic mixer, which plays an important role in the superheterodyne receiver. On the basis of the breakthrough in the research of key circuits, the terahertz communication system with 20Gbps data rate has been designed. The research shows the great potential of the terahertz wave for high speed wireless communication. And it lays an important theoretical and technical foundation for the development of terahertz frequency resources as a new wireless communication band in the future.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124572984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Slow-Wave Transmission Line Unit with Spiral-Shaped Branches and Defected Grounds for CPW 带螺旋形分支和有缺陷的CPW接地的慢波传输线单元
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015909
Wen Huang, Jinsheng Dong, Fei Tan, Wei Ruan
{"title":"Slow-Wave Transmission Line Unit with Spiral-Shaped Branches and Defected Grounds for CPW","authors":"Wen Huang, Jinsheng Dong, Fei Tan, Wei Ruan","doi":"10.1109/UCMMT45316.2018.9015909","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015909","url":null,"abstract":"In this paper, a slow-wave transmission line unit for coplanar waveguide (CPW) is proposed, which can be used as a kind of periodic structure. For the proposed unit, the CPW transmission line is loaded with spiral-shaped branches, while the both ground planes have spiral-shaped defects. The proposed 50 Ω transmission line unit with 22.5° has more compact size than conventional case, and only occupies 28.8% size of conventional one. The operational frequency of proposed unit is 0.9 GHz, and the bandwidth can achieve 366.7%, ranged from 0 GHz to 3.24 GHz. Moreover, to verify the periodic characteristic of proposed unit, two and four unit-cells of proposed structure are cascaded respectively. Finally, the proposed transmission line unit is demonstrated to have good performance by simulated results.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133748900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Simulation Study on Plasma Discharge of Microwave Spark Plug 微波火花塞等离子体放电的仿真研究
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015756
Wang Zhongli, Wang Yaoyao, Zhu Liang, Tang Yunying, Ma Wen-dong, Shan Jiafang
{"title":"A Simulation Study on Plasma Discharge of Microwave Spark Plug","authors":"Wang Zhongli, Wang Yaoyao, Zhu Liang, Tang Yunying, Ma Wen-dong, Shan Jiafang","doi":"10.1109/UCMMT45316.2018.9015756","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015756","url":null,"abstract":"The microwave discharge process is typically a matter of multi-physics field coupling. In this paper, a two-dimensional axisymmetric simulation model of microwave spark plug is established by means of finite element simulation. The starting and developing process of spark plug central conductor tip discharge are simulated, while the distribution of electric field intensity, electron density and He+ density near the tip discharge over time are obtained. The simulation results show that with the progress of discharge, the electric field intensity at the tip of the central conductor is decreasing, and the electron concentration and He+ concentration reach an equilibrium state at 10−5s. This study provides a theoretical reference for understanding the discharge process and effect mechanism of microwave spark plug plasma discharge.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"457 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134176358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Terahertz 3-D Synthetic Aperture Imaging for Dielectric Properties Estimation 用于介电特性估计的太赫兹三维合成孔径成像
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015924
Chao Sun, Qinggong Chang, Yahai Wang, F. Nian
{"title":"Terahertz 3-D Synthetic Aperture Imaging for Dielectric Properties Estimation","authors":"Chao Sun, Qinggong Chang, Yahai Wang, F. Nian","doi":"10.1109/UCMMT45316.2018.9015924","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015924","url":null,"abstract":"A 220-235GHz terahertz three-dimensional imaging system is constructed based on general test and measurement instruments, operating in the stepped-frequency continuous wave. After a detailed description of the measurement setup, high-resolution three-dimensional images of two materials are obtained using range migration algorithm. From multiple views of the three dimensional image data, the thickness and permittivity of the measured materials are then estimated, providing an alternative of extracting material dielectric properties.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122294165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Liquid Crystal Based SIR Bandpass Filter for Millimeter Wave Application 基于液晶的毫米波应用SIR带通滤波器
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015810
Ziqi Liu, Xiaoyu Li, Yupeng Liu, D. Jiang
{"title":"Liquid Crystal Based SIR Bandpass Filter for Millimeter Wave Application","authors":"Ziqi Liu, Xiaoyu Li, Yupeng Liu, D. Jiang","doi":"10.1109/UCMMT45316.2018.9015810","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015810","url":null,"abstract":"A liquid crystal wideband bandpass filter based on inner coupled ring SIR structure (stepped impedance resonator) for millimeter wave application is presented. The filter adopts a periodically loaded in-coupled ring-shaped SIR structure, and the insertion loss introduced by the filter with the coupling structure is reduced by cascading a different number of resonant elements. The filter has high frequency selectivity and out-off-band suppression. By encapsulating the liquid crystal material inside the multilayer substrate and using the dielectric anisotropy of the liquid crystal material to realize the tuning characteristic of the circuit, the design of a reconfigurable bandpass of the millimeter wave center frequency is realized. The 3dB bandwidth of the 6-order millimeter wave SIR filter cascaded with three resonant elements is 10.4GHz, and the return loss is less than −16.5dB and the insertion loss is greater than −1.2dB. By changing the dielectric constant of the liquid crystal material (from 2.5 to 3.1), the frequency of the filter center varies from 28.2GHz to 29.7GHz.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"310 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115913833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study of a high-order mode terahertz backward wave ocsillator driven by multiple sheet electron beams 由多层电子束驱动的高阶模太赫兹反向波振荡器的研究
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015763
G. Shu, C. Zhou, H. Xiong, L. Chen, Z. Qian, G. Liu
{"title":"Study of a high-order mode terahertz backward wave ocsillator driven by multiple sheet electron beams","authors":"G. Shu, C. Zhou, H. Xiong, L. Chen, Z. Qian, G. Liu","doi":"10.1109/UCMMT45316.2018.9015763","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015763","url":null,"abstract":"The concept of achieving powerful terahertz radiation by the interaction between high-order mode backward wave and multiple sheet electron beams is proposed to increase the operating frequency of the backward wave oscillator (BWO) to a high level such as over 1 THz. For the high-order mode operation, an orthogonal grating waveguide slow wave structure is proposed. Particle-in-cell simulations show that the high-order mode BWO can generate over 0.84 W power in the frequency range of 1.20-1.32 THz. The proposed methodology provides a potential solution to develop compact terahertz radiation sources with high output power and broad tunable bandwidth.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"47 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115942356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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