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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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Design and Analysis of High Selectivity THz Filters for Astronomical Observation System Including Power Handling Analysis 天文观测系统高选择性太赫兹滤波器的设计与分析及功率处理分析
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015652
A. Fahad, C. Ruan, T. Haq, Shahidullah Khan
{"title":"Design and Analysis of High Selectivity THz Filters for Astronomical Observation System Including Power Handling Analysis","authors":"A. Fahad, C. Ruan, T. Haq, Shahidullah Khan","doi":"10.1109/UCMMT45316.2018.9015652","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015652","url":null,"abstract":"This paper presents design of a high selectivity band pass filter having centre frequency as 0.22 THz and bandwidth as 10 GHz. Filter is designed using TE102 resonator and is implemented as 12th order direct coupled waveguide structure coupled through inductive windows. More than 110 dB suppression is found at ±5 GHz from pass band edges which shows that filter has very good selectivity (22 dB/GHz) around near out-of-band. Filter sensitivity and power handling analyses are carried out in HFSS and it is found that ±5μm precision with ±2μm surface roughness for machining doesn't significantly affect the response of the filter yet the filter is able to handle around 80Watts of power.","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":"129442970","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 and Implementation of a Butterfly Broadband Printing Dipole Omnidirectional Antenna 蝶形宽带打印偶极子全向天线的设计与实现
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/ucmmt45316.2018.9015922
Wenxuan Jiang, Yijie Wang, Peng Chen, Xutao Yu
{"title":"Design and Implementation of a Butterfly Broadband Printing Dipole Omnidirectional Antenna","authors":"Wenxuan Jiang, Yijie Wang, Peng Chen, Xutao Yu","doi":"10.1109/ucmmt45316.2018.9015922","DOIUrl":"https://doi.org/10.1109/ucmmt45316.2018.9015922","url":null,"abstract":"A printed dipole antennas is designed and optimized in this paper. Based on the traditional dipole antenna, a kind of broadband printed dipole omnidirectional antenna is designed by adjusting the size of the antenna arm and the position of the balun. A coaxial connector is added to the antenna model to feed the current. In order to increase the omnidirectional performance, a method of adjusting the shape of the dipole antenna arms is proposed. The antenna model is simulated by using HFSS. The results of physical measurement of the antenna sample show that the operating frequency is 4.37GHz to 6.98GHz, the maximum gain of the H-plane pattern is 4.58dB and range between the maximum and minimum gain is 2.4dB.","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":"129577305","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
ISAR Imaging with Micro-motion Components 微运动组件的ISAR成像
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015650
Runqi Chen, Shuanghui Zhang, Ting Gong, Yongxiang Liu
{"title":"ISAR Imaging with Micro-motion Components","authors":"Runqi Chen, Shuanghui Zhang, Ting Gong, Yongxiang Liu","doi":"10.1109/UCMMT45316.2018.9015650","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015650","url":null,"abstract":"In practical radar systems, the micro-motions of some scatting points will perform additional frequency modulation effects on echo signals, resulting in the ineffectiveness of traditional algorithm for ISAR imaging. This paper proposes one non-coherent accumulation based method for removing these effects. Pseudo matched filter (PMF) is applied to eliminate micro-Doppler (m-D) effects among range cells firstly. In this step, the first threshold is used to detect the target signal in a range cell. Then time-frequency (TF) analysis for separating the rigid body and the m-D parts in the complex TF domain is employed to weaken m-D effects within range cells. Finally, simulation results validate the feasibility of the approach.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"29 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":"130626695","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 5.8 GHz Directional Half Wave Dipole Antenna Design 5.8 GHz定向半波偶极子天线设计
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015749
Jinfeng Hu, Yanfei Li, Xinyuan Kou, Guizhen Lu, Z. Li
{"title":"A 5.8 GHz Directional Half Wave Dipole Antenna Design","authors":"Jinfeng Hu, Yanfei Li, Xinyuan Kou, Guizhen Lu, Z. Li","doi":"10.1109/UCMMT45316.2018.9015749","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015749","url":null,"abstract":"In this paper, an inverted AMOS directional antenna working at 5.8GHz with a simple feeding structure is designed. The beam width of the inverted AMOS antenna is 75.9 degree. The antenna is simulated, fabricated and measured. The measurement results agree well with the simulation results, and show the antenna is with a good performance.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"39 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":"129037991","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
RCS Reduction of 2×2 Microstrip Antenna Array Using All Dielectric Metasurface 利用全介电超表面降低2×2微带天线阵的RCS
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015677
M. Al-Nuaimi, Yejun He
{"title":"RCS Reduction of 2×2 Microstrip Antenna Array Using All Dielectric Metasurface","authors":"M. Al-Nuaimi, Yejun He","doi":"10.1109/UCMMT45316.2018.9015677","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015677","url":null,"abstract":"This paper proposes a method to reduce the radar cross section (RCS) of a 2×2 microstrip antenna array around 20 GHz. The presented design is based on reflection phase cancellation principle and uses an all dielectric unit cell. Two perforated unit cells with 0° and 180° reflection phases are used and their geometrical parameters are optimized carefully to have 180° ± 30° reflection phase difference between their reflection phases, which is required to realize the phase cancellation. A 2×2 microstrip array is designed at 20 GHz and the proposed unit cell is distributed around the antennas in Chessboard like surface. A clear monostatic RCS reduction is achieved from about 18 GHz to 27 GHz with low level backscattered EM wave in the half space in front of the antenna array under both normal and oblique incidence of far-field plane wave. In the presented technique, no metallic inclusions are used on the upper surface of the dielectric substrate next to the antenna array radiating elements. Compared to the previously published works which used metallic inclusions next to radiating elements, the presented design has less effect on the radiation characteristics of the antenna array.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"12 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":"126323434","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
Wideband Printed Quasi-Yagi Antenna Using Multiple Modes Technique 基于多模技术的宽带印刷准八木天线
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015832
Daotong Li, Yaohui Zhang, Yaqing Yu, Y. Liu, Haowei Wu, M. Tang
{"title":"Wideband Printed Quasi-Yagi Antenna Using Multiple Modes Technique","authors":"Daotong Li, Yaohui Zhang, Yaqing Yu, Y. Liu, Haowei Wu, M. Tang","doi":"10.1109/UCMMT45316.2018.9015832","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015832","url":null,"abstract":"A design approach for wideband planar printed quasi-Yagi antenna is proposed based on multiple modes technique in this paper. Different with other methods, which use wideband feeding structures, the operating bandwidth is enlarged by using multi-mode dipoles. A stub-loaded dipole generating two resonant modes (i.e., lower dual-mode dipole) is allocated on the underside of a simple dipole (i.e., upper singlemode dipole) introducing the third resonant mode. When the two sub-antennas are combined together, a three modes performance is achieved. The evolution process of antenna is described and corresponding performances are given. Meandering multi-mode dipole and double concave parabolic reflector are employed to reduce the antenna size and enlarge the operating bandwidth. A demonstration wideband antenna is designed, fabricated and measured. Experimental and simulated results show good agreement, and the proposed planer printed quasi-Yagi antenna presents an excellent end-fire radiation and high radiation efficiency.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"30 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":"114176662","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
Remote Sensing Image Super-Resolution using Multi-Scale Convolutional Neural Network 基于多尺度卷积神经网络的遥感图像超分辨率研究
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015801
Xing Qin, Xiaoqi Gao, Keqiang Yue
{"title":"Remote Sensing Image Super-Resolution using Multi-Scale Convolutional Neural Network","authors":"Xing Qin, Xiaoqi Gao, Keqiang Yue","doi":"10.1109/UCMMT45316.2018.9015801","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015801","url":null,"abstract":"Remote sensing images have advantages in large-area imaging and macroscopic integrity. However, in most commercial applications, further recognition and processing becomes difficult due to the low spatial resolution of the acquired images. Therefore, improving the resolution of remote sensing images has important practical significance. To solve this problem, we propose a remote sensing image super-resolution method based on deep learning technology. In order to obtain more detailed image information, we introduce multi-scale convolution to implement feature extraction and deconvolution be used to achieve the final 3× image reconstruction without bicubic interpolation. Experimental results show that our network achieves better performance than prior art methods and visual improvement of our results is easily noticeable.","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":"120947314","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: 3
Low-Profile Wideband Reconfigurable Plasma Antenna Design 低姿态宽带可重构等离子体天线设计
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015762
Chao Wang, Fenglian Xie, Lijian Xia, B. Yuan, Junfa Mao
{"title":"Low-Profile Wideband Reconfigurable Plasma Antenna Design","authors":"Chao Wang, Fenglian Xie, Lijian Xia, B. Yuan, Junfa Mao","doi":"10.1109/UCMMT45316.2018.9015762","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015762","url":null,"abstract":"In this paper, a metric wave wideband reconfigurable plasma antenna is proposed. The wideband technique is based on traditional transmission branch line theory and reconfigurable property. The plasma antenna performs a wideband operation which is from 30MHz to 512MHz, and reflected coefficients are lower than −6dB. Radiation pattern is measured by UAV system with spectrum analyzer. Compared with traditional metric wave antenna, this structure has a lower profile and the total height is 0.5m. The shape is similar to folded dipole, it can be applied in vehicular and shipborne communicating systems.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"30 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":"121194742","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 Composite Antenna Comprising Conical-Beam Slotted Cavity and Patch Antennas 一种由锥形波束开槽腔和贴片天线组成的复合天线
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015674
L. Nie, X. Lin, Jin Zhang, Yihong Su, Bao Wang
{"title":"A Composite Antenna Comprising Conical-Beam Slotted Cavity and Patch Antennas","authors":"L. Nie, X. Lin, Jin Zhang, Yihong Su, Bao Wang","doi":"10.1109/UCMMT45316.2018.9015674","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015674","url":null,"abstract":"A composite antenna consisting of patch and slotted cavity antennas based on substrate integrated waveguide (SIW) is proposed in this paper. TM020 mode is simply excited by a coaxial probe located at the center of the cavity. Energy is coupled out of the cavity by six symmetric curved slots etched in the top metal layer. Thus, a conical-beam radiation pattern with horizontal linear polarization is obtained from 25.37 to 33.1 GHz $(vert mathrm{S}_{11}vert < - {10}$ dB). In addition, a patch antenna operating from 5.06 to 5.30 GHz (VSWR < 2) is achieved when the slotted cavity is excited from the bottom metal layer. The reflector of the slotted cavity antenna is reused as the ground of the patch antenna. This composite antenna can be applied for future 5 G wireless communication.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"40 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":"121575205","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
Low-Sidelobe Series-Fed Microstrip Antenna Array for 77 GHz Automotive Radar Applications 用于77 GHz汽车雷达的低旁瓣串联馈电微带天线阵列
2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT) Pub Date : 2018-09-01 DOI: 10.1109/UCMMT45316.2018.9015643
Jia-Ye Xie, Jiexi Yin, Qi Wu, Haiming Wang
{"title":"Low-Sidelobe Series-Fed Microstrip Antenna Array for 77 GHz Automotive Radar Applications","authors":"Jia-Ye Xie, Jiexi Yin, Qi Wu, Haiming Wang","doi":"10.1109/UCMMT45316.2018.9015643","DOIUrl":"https://doi.org/10.1109/UCMMT45316.2018.9015643","url":null,"abstract":"A low-sidelobe series-fed microstrip linear array antenna and a planar array antenna operating at 76-77 GHz are designed. The linear array antenna consists of 12 microstrip patch elements and a quarter of wavelength impedance transformer. By using the differential evolution algorithm (DEA), the widths of patch elements and the inter-element spacing are optimized, which results in a low sidelobe level in the E plane. Prototypes of the two antennas are fabricated and measured respectively. The measured gain of the linear array antenna is 16.1 dBi and the sidelobe level (SLL) is −20.5 dB in E plane with half power beam width (HPBW) of 8.4° at 77 GHz. The measured gain of the planar array antenna is 22.8 dBi and the SLL is −15.5 dB in E plane and −17.1 dB in H plane at 77 GHz.","PeriodicalId":326539,"journal":{"name":"2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT)","volume":"658 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113986387","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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