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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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Design of Broadband Circularly Polarized Metasurface Antenna Based on Dual-pentagonal Units 基于双五边形单元的宽带圆极化超表面天线设计
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569895
Q. Peng, Zhongliang Lu, Miao Liu, Chao Liao, Xiangjun Tan, Qian Song
{"title":"Design of Broadband Circularly Polarized Metasurface Antenna Based on Dual-pentagonal Units","authors":"Q. Peng, Zhongliang Lu, Miao Liu, Chao Liao, Xiangjun Tan, Qian Song","doi":"10.1109/ucmmt53364.2021.9569895","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569895","url":null,"abstract":"A broadband circularly polarized (CP) metasurface antenna based on double pentagonal elements is proposed. The antenna is mainly composed of a microstrip coupling feeding I-shaped slot, a metasurface and an air layer. The I-shaped slot generates linearly polarized (LP) waves, and the metasurface completes the conversion from LP waves to CP waves. The simulated results show that the impedance bandwidth of the antenna is 6.9-8.9GHz, and the 3dB axial ratio bandwidth is 7.21–8.50GHz. It can be widely used in wireless communication systems for simple structure and wide 3dB axial ratio bandwidth.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126763556","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
Modeling Techniques for GaN FinFET GaN FinFET的建模技术
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569911
Haiyan Lu, Kai Zhang, Tangsheng Chen, Jixin Chen
{"title":"Modeling Techniques for GaN FinFET","authors":"Haiyan Lu, Kai Zhang, Tangsheng Chen, Jixin Chen","doi":"10.1109/ucmmt53364.2021.9569911","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569911","url":null,"abstract":"This paper briefly introduces the fabrication of GaN FinFET devices and its DC and microwave characteristics. GaN FinFET exhibits better linearity, higher current density and power density. A large signal equivalent circuit modeling for GaN FinFETs is presented in this paper. The improved Rs and current equation are shown in the paper. The simulation results of DC and S parameter models are compared with the measured ones. The results show that the model has high precision and good convergence and can be used in circuit design.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130677630","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
Pattern Synthesis Method Based on Gaussian Beam Mode Analysis 基于高斯光束模式分析的方向图合成方法
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569841
Zhuhang Gong, Tianyang Chen, Junsheng Yu, Yuan Yao, Xiao-dong Chen
{"title":"Pattern Synthesis Method Based on Gaussian Beam Mode Analysis","authors":"Zhuhang Gong, Tianyang Chen, Junsheng Yu, Yuan Yao, Xiao-dong Chen","doi":"10.1109/ucmmt53364.2021.9569841","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569841","url":null,"abstract":"In this paper, an application of Gaussian mode analysis method is discussed. The mode synthesis method is used to realize the synthesis of specified pattern. Taking the ideal radiation function of the feed with the compact field of the biased single mirror as an example, an approximate radiation function is synthesized by using the Gaussian modes of different orders. The difference between the ideal radiation pattern and the synthetic pattern in the central region is less than ± 0.2dB. The method is a fast and efficient quasi optical system design technology.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123812633","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 Dual-Band High-Power Backward Wave Oscillator using Double Staggered Grating and Pseudospark-Sourced Sheet Beam 双交错光栅和伪火花源板束双频高功率反向波振荡器的设计
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569914
Jin Zhang, Y. Alfadhl, Xiao-dong Chen, Liang Zhang, A. Cross
{"title":"Design of Dual-Band High-Power Backward Wave Oscillator using Double Staggered Grating and Pseudospark-Sourced Sheet Beam","authors":"Jin Zhang, Y. Alfadhl, Xiao-dong Chen, Liang Zhang, A. Cross","doi":"10.1109/ucmmt53364.2021.9569914","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569914","url":null,"abstract":"We have designed a dual-band backward wave oscillator (BWO) using a double staggered grating (DSG) slow-wave structure (SWS) and a pseudospark-sourced sheet electron beam. In the simulation of the high-frequency characteristics, the DSG SWS has been shown a wide operating band of 72–125 GHz and a high coupling impedance. The complete structure of the BWO consists of 10 DSG SWS units, together with a wideband output structure. In the cold-test simulation of the DSG BWO, the transmission is greater than −7 dB in the band 74–100 GHz, and 109–125 GHz. The hot-test performance of the DSG BWO is analysed by particle-in-cell (PIC) simulation, showing dual-band operation in 75–100 GHz (25-GHz bandwidth) and 108–115 GHz (7-GHz bandwidth), with high output power (max. 162 kW).","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125641417","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
170 GHz Passive Tripler Based on Schottky Barrier Diodes 基于肖特基势垒二极管的170 GHz无源三倍器
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569874
Zhongqian Niu, Bingli Dai, Bo Zhang, Yong Fan
{"title":"170 GHz Passive Tripler Based on Schottky Barrier Diodes","authors":"Zhongqian Niu, Bingli Dai, Bo Zhang, Yong Fan","doi":"10.1109/ucmmt53364.2021.9569874","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569874","url":null,"abstract":"In this paper, a 170GHz frequency tripler is designed by using the collaborative simulation method of “field” and “circuit”. The frequency multiplier adopts reverse-paralleled diode-pair structure to realize frequency tripling without bias. When the input driving power of the designed 170GHz tripler is about 100mW, the efficiency can reach 9%.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133379917","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 High Performance Terahertz Tri-reflector CATR with Ultra-Large Aperture 超大口径高性能太赫兹三反射CATR的设计
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569930
Zhi Li, Yuan Yao, Tianyang Chen, Xiao-he Cheng, Junsheng Yu, Xiao-dong Chen
{"title":"Design of High Performance Terahertz Tri-reflector CATR with Ultra-Large Aperture","authors":"Zhi Li, Yuan Yao, Tianyang Chen, Xiao-he Cheng, Junsheng Yu, Xiao-dong Chen","doi":"10.1109/ucmmt53364.2021.9569930","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569930","url":null,"abstract":"A high performance terahertz tri-reflector compact antenna test range (CATR) with ultra-large aperture is presented in this paper. The tri-reflector CATR system is composed of a parabolic main reflector and two shaped sub-reflectors. The aperture size of the main reflector is 7 m, while the size of the two sub-reflectors are about 0.55 m × 0.55 m and 0.44 m × 0.44 m respectively. By using B-spline surface reconstruction and dynamic ray-tracing approach, two shaped sub-reflectors are synthesized. The tri-reflector CATR which can generate a regional pseudo-plane wave in a very short distance, is commonly employed to measure electrically large aperture antennas, and this region is generally referred to as a quiet zone (QZ). The designed tri-reflector CATR system is modeled and simulated. The numerical analysis and simulation results demonstrate that a peak-to-peak amplitude (phase) ripple <1 dB (5°) and a cross-polarization isolation >50 dB can be achieved on the principal cuts of the QZ at 100–500 GHz, and furthermore, the QZ usage ratio of the CATR can reach up to 80%. All these show that the tri-reflector CATR system has a high QZ performance, and the effectiveness of the system design has also been verified.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124285537","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
Research on electronically controlled planar reflectarray antenna based on liquid crystal material 基于液晶材料的电控平面反射天线研究
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569902
Y. Du, Tianliang Zhang, Di Jiang, Yin Jin, Yiheng Zhang, Lijun Feng, Jie Gao, Kainan Qi
{"title":"Research on electronically controlled planar reflectarray antenna based on liquid crystal material","authors":"Y. Du, Tianliang Zhang, Di Jiang, Yin Jin, Yiheng Zhang, Lijun Feng, Jie Gao, Kainan Qi","doi":"10.1109/ucmmt53364.2021.9569902","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569902","url":null,"abstract":"A planar reflectarray antenna based on liquid crystal materials is presented in this paper. First, a new type of loop dipole miniaturized liquid crystal antenna reflection unit is constructed. The reflector unit can achieve 400° phase shift at 35GHz, and the loss is less than 4.5dB. Then, an 11×11 liquid crystal reflectarray antenna is designed using this unit, and the main beam scanning angle range of the array antenna reached ±20°. When the deflection angle of the array antenna is 20°, the gain of the antenna is 14.9dBi, and the first sidelobe level is −9.1dB.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114779386","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
Miniaturized Folded Antenna with Improved Matching Characteristic for mm-wave Detections 改进匹配特性的微型化折叠天线用于毫米波探测
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569948
S. Muttlak, M. Sadeghi, K. Ian, M. Missous
{"title":"Miniaturized Folded Antenna with Improved Matching Characteristic for mm-wave Detections","authors":"S. Muttlak, M. Sadeghi, K. Ian, M. Missous","doi":"10.1109/ucmmt53364.2021.9569948","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569948","url":null,"abstract":"This work reports on the design and analysis of a folded antenna operating at mm-wave frequencies. Prior to this, several folded antennas operating at 7, 9 and 10GHz frequencies were used to validate the simulation procedure performed. A mm-wave folded antenna with a resonant frequency of 39GHz was then simulated. A relatively small antenna geometry was achieved without sacrificing its gain and other crucial characteristics. A 3.5dB gain and 4.6dBi directivity were obtained with a frequency bandwidth reaching 780MHz. The main and secondary arm widths of the folded antenna are key in determining the real and imaginary parts of the antenna impedance, providing a degree of freedom for the designer to get the antenna well-matched with the subsequent integrated circuit. This provides useful features including the capability of reducing the overall antenna dimensions and avoiding matching circuits.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117263349","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
A W-band Broadband Cassegrain Antenna with Polarisation and OAM Multiplexing 带极化和OAM复用的w波段宽带卡塞格伦天线
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569944
Weihao Qi, Xianling Liang, Lei Xiang, Yanchang Gao, Jun-ping Geng, R. Jin
{"title":"A W-band Broadband Cassegrain Antenna with Polarisation and OAM Multiplexing","authors":"Weihao Qi, Xianling Liang, Lei Xiang, Yanchang Gao, Jun-ping Geng, R. Jin","doi":"10.1109/ucmmt53364.2021.9569944","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569944","url":null,"abstract":"A broadband dual-polarisation and three-mode OAM cassegrain antenna in W-band is proposed. The antenna consists of two parts. One is a dual-polarised open-ended square waveguide antenna double-ring antenna array as a feed, which is designed to generate OAM beams with modes of l= ±1 and +2, and the other is a cassegrain reflector, which is designed to converge the OAM beams. The proposed antenna has a 10dB impendance bandwidth beyond 24.9%, gains better than 26.6dBi, side-lobe levels lower than −10.7dB, and cross-polarisation levels lower than −15dB.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121918812","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
Ka-band Rectenna With Enhanced Power Handling Capability Using Double-port Horn Antenna 采用双端口喇叭天线增强功率处理能力的ka波段整流天线
2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) Pub Date : 2021-09-13 DOI: 10.1109/ucmmt53364.2021.9569891
Fei Cheng, Chao Gu, K. Huang
{"title":"Ka-band Rectenna With Enhanced Power Handling Capability Using Double-port Horn Antenna","authors":"Fei Cheng, Chao Gu, K. Huang","doi":"10.1109/ucmmt53364.2021.9569891","DOIUrl":"https://doi.org/10.1109/ucmmt53364.2021.9569891","url":null,"abstract":"This paper presents a Ka-band rectenna which contains a double-port antenna connected with two rectifiers for wireless power transfer. The horn antenna is formed by two stacked apertures to minimize the antenna height. The horn antenna is connected to 1-to-2 power divider to form a double-port antenna. The power divider would be connected to the two same efficient rectifiers. With this rectenna topology, the power handling capability would be enhanced by 2 times. At 34.5 GHz, the designed antenna has a realized gain of 11.1 dBi, the designed power divider has insertion loss of 3.07 dB, and the rectifier has a power conversion efficiency of 50% when the load is 300 Ω and the input power is 22 dBm. It can be predicted that the rectenna can handle at least 25 dBm input power.","PeriodicalId":117712,"journal":{"name":"2021 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130653544","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
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