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2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)最新文献

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A High-Efficiency 35 GHz Circular-Polarized Rectenna with Rotating Array 一种高效35 GHz旋转阵列圆极化整流天线
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569907
Y. Yan, Xianqi Lin, Z. Wen, Yang Cai, Zhi Chen
{"title":"A High-Efficiency 35 GHz Circular-Polarized Rectenna with Rotating Array","authors":"Y. Yan, Xianqi Lin, Z. Wen, Yang Cai, Zhi Chen","doi":"10.1109/ucmmt53364.2021.9569907","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569907","url":null,"abstract":"A 35GHz circular-polarized rectenna with high efficiency is proposed in this paper. The rectifier is designed at 35GHz using Schottky diode of MA4E1310. Two Schottky diode is series-parallel connected in the rectifying circuit, which has a measured rectifying efficiency of 54% with a 600 Ω when the received power is 63mW. The proposed rectifier is printed on the bottom side of antenna. The antenna is simulated by the full wave EM analysis software of HFSS and the rectifying circuit is simulated by using the ADS software. A four element rectenna array is designed with rotating array and the circular patch antenna fed by the coupling slot is employed to receive power form free space with a high gain of 12 dB. The low profile and easy integration of the proposed rectenna will be used for reference in the field of millimeter wave wireless energy transmission.(MMPT)","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":"348 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114048749","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
3D Imaging Algorithm for Non-Uniform Scanning 1D MIMO Array 非均匀扫描1D MIMO阵列三维成像算法
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569921
Guilin Deng, Yang Zeng, Qi Yang, Zhaoyang Ma, B. Deng
{"title":"3D Imaging Algorithm for Non-Uniform Scanning 1D MIMO Array","authors":"Guilin Deng, Yang Zeng, Qi Yang, Zhaoyang Ma, B. Deng","doi":"10.1109/ucmmt53364.2021.9569921","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569921","url":null,"abstract":"In short-range millimeter-wave (MMW) 3D imaging applications, scanning 1-D multiple-input multiple-output (MIMO) array shows the advantages in low cost and fast data acquisition comparing to traditional single-input-single-output (SISO) and 2D MIMO techniques. However, in practical applications, the actual synthetic aperture array is non-uniform since uniform scanning is difficult to achieve. To solve this problem, a frequency-domain fast imaging algorithm based on non-uniform fast Fourier transform (NUFFT) is proposed in this paper. Simulation and experimental results show significant improvement in imaging efficiency comparing to traditional methods such as back projection (BP) algorithm, while maintaining the imaging quality.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114338006","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: 2
A diplexer for terahertz full-duplex communication systems 用于太赫兹全双工通信系统的双工器
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569928
C. Qiao, Dingchengying Xin, Zhongqian Niu, Bo Zhang
{"title":"A diplexer for terahertz full-duplex communication systems","authors":"C. Qiao, Dingchengying Xin, Zhongqian Niu, Bo Zhang","doi":"10.1109/ucmmt53364.2021.9569928","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569928","url":null,"abstract":"In this paper, a 220GHz discontinuous manifold coupled waveguide diplexer is proposed for future terahertz multichannel communication applications. The diplexer consists of two Chebyshev bandpass filters based on metal waveguide technology. Through the co-design of the low order electromagnetic distribution model and the full wave electromagnetic model, the optimization design with high computational efficiency and high design precision is realized. The multiplexer is manufactured using low-cost CNC milling technology, with an in-band insertion loss of 0.8dB per channel filter and an average common-port return loss of 15dB. The measured results are in good agreement with the simulation results, which verifies the correctness of the whole design process.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":"2673 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133731632","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
[Copyright notice] (版权)
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569919
{"title":"[Copyright notice]","authors":"","doi":"10.1109/ucmmt53364.2021.9569919","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569919","url":null,"abstract":"","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134032533","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
Inverse Design of a Terahertz Metasurface with Split Ring Resonator Based on Deep Learning 基于深度学习的太赫兹分环谐振腔超表面逆设计
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569905
Jun Zhou, Jiajia Qian, Zhenzhen Ge, Shuting Wu, Luyang Liu, Zhen Ding
{"title":"Inverse Design of a Terahertz Metasurface with Split Ring Resonator Based on Deep Learning","authors":"Jun Zhou, Jiajia Qian, Zhenzhen Ge, Shuting Wu, Luyang Liu, Zhen Ding","doi":"10.1109/ucmmt53364.2021.9569905","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569905","url":null,"abstract":"Designing a metasurface structure on demand is an extremely time-consuming process. As an efficient machine learning method, deep learning has been widely used for data classification and regression in recent years and in fact shown good generalization performance. We have built a deep neural network for ondemand design of a terahertz (THz) metasuface with split ring resonator. With the required reflectance as input, the parameters of the structure are automatically calculated and then output to achieve the purpose of designing on demand. The results indicate that using deep learning to train the data, the trained model can more accurately guide the design of the structure, thereby speeding up the design process. Compared with the traditional design process, using deep learning to guide the design of metasurface can achieve faster, more accurate, and more convenient purposes.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122955636","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
Design of 220GHz bandpass filter based on waveguide resonator 基于波导谐振器的220GHz带通滤波器设计
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569912
Tao Zhang, Zhongqian Niu, Bo Zhang, Yong Fan
{"title":"Design of 220GHz bandpass filter based on waveguide resonator","authors":"Tao Zhang, Zhongqian Niu, Bo Zhang, Yong Fan","doi":"10.1109/ucmmt53364.2021.9569912","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569912","url":null,"abstract":"Based on the theory of classical half-wavelength reactance-coupled filter, a 220GHz bandpass filter based on rectangular waveguide resonator is designed in this paper. The simulation results show that the center frequency of the filter is 220GHz, the relative bandwidth is 5.5%, and the insertion loss is better than 0.041dB and the return loss is better than 20dB in the passband range of 214GHz to 226GHz.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115245246","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
The Design of 220GHz Four-way Power Divider Based on E-plane Directional Waveguide Hybrid 基于e平面定向波导混合的220GHz四路功率分配器设计
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569868
Yang Liu, Bo Zhang
{"title":"The Design of 220GHz Four-way Power Divider Based on E-plane Directional Waveguide Hybrid","authors":"Yang Liu, Bo Zhang","doi":"10.1109/ucmmt53364.2021.9569868","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569868","url":null,"abstract":"This paper designs a four-way power divider based on 3dB E-plane waveguide hybrid coupler at center frequency 220GHz. By using bend waveguide cascade the hybrid, the return loss of designed power divider can be better than 21dB over 203GHz −235GHz, while the amplitude imbalance can be less than 0.2dB and relative bandwidth can reach more than 13.6 %. The power divider achieves a good result of equal power distribution and can meet the requirements of terahertz communication and imaging applications.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115249730","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: 2
Preliminary Design of Reentrant Square Cavity for EIK Application 用于EIK应用的可重入方形腔体初步设计
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569918
Che Xu, C. Paoloni, L. Meng
{"title":"Preliminary Design of Reentrant Square Cavity for EIK Application","authors":"Che Xu, C. Paoloni, L. Meng","doi":"10.1109/ucmmt53364.2021.9569918","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569918","url":null,"abstract":"A slow-wave structure (SWS) with periodic coupling structure and reentrant cavity is proposed for extending the extended interaction klystron (EIK) technology. The conventional higher-order mode single-period cavities allow for larger sizes, corresponding to the G-band (220 GHz), but their low R/Q values are not facilitating the realization of extended interaction klystron (EIK). The newly proposed compact EIK topology is to support millimeter-wave higher-order mode operations. The slow wave structure facilitates the advantages of multi-layered processing.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126739790","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
Broadband Characterisation of Interior Materials and Surface Scattering using Terahertz Time-Domain Spectroscopy 内部材料的宽带特性和表面散射使用太赫兹时域光谱
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569890
Emily Adams, Toby Attwood, S. Freer, S. Hanham, C. Constantinou, F. Hu, L. Azpilicueta, M. Navarro‐Cía
{"title":"Broadband Characterisation of Interior Materials and Surface Scattering using Terahertz Time-Domain Spectroscopy","authors":"Emily Adams, Toby Attwood, S. Freer, S. Hanham, C. Constantinou, F. Hu, L. Azpilicueta, M. Navarro‐Cía","doi":"10.1109/ucmmt53364.2021.9569890","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569890","url":null,"abstract":"Indoor wireless communications need to move towards Terahertz (THz) frequencies in order to keep up with society's demand for data transmission, but this change is currently hindered by limited knowledge of material properties and propagation and scattering models at these frequencies. The dielectric properties of common household materials are investigated here with a twofold objective: (1) to extend the library of material properties at THz, and (2) to estimate and disentangle losses in scattering measurements in order to facilitate propagation, scattering and, ultimately, channel models.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115336548","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: 2
Electrically Triggered Tunable Terahertz Modulator Based on VO2 Hybrid Metasurface 基于VO2混合超表面的电触发可调谐太赫兹调制器
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569889
Jiajia Qian, Jun Zhou, Shuting Wu, Zhenzhen Ge, Zhen Ding, Luyang Liu
{"title":"Electrically Triggered Tunable Terahertz Modulator Based on VO2 Hybrid Metasurface","authors":"Jiajia Qian, Jun Zhou, Shuting Wu, Zhenzhen Ge, Zhen Ding, Luyang Liu","doi":"10.1109/ucmmt53364.2021.9569889","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569889","url":null,"abstract":"We demonstrate an electrically triggered tunable terahertz (THz) modulator based on vanadium dioxide (VO2) embedded hybrid metasurface. The unit cell of the filter consists of two plates butted together with a split gap and a central bar. The phase transition of VO2 is induced by the ohmic heating of the central bar. The transmission can be modulated by the temperature caused by the ohmic heating. The mechanism of tunability is that the conductivity of the VO2 film changes with the applied currents. The relation between the modulation frequency and the geometries is investigated using finite element method (FEM). The simulation results show that, when the temperature of the VO2 film increases from 65 to $70^{circ}mathrm{C}$, a redshift from 0.65 THz with a 99% modulation depth to 0.3 THz with a 94% modulation depth is obtained. This tunable THz modulator has potential applications in THz communication, imaging, and spectroscopy systems.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124976423","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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