发布求助
文献互助 智能选刊 最新文献

2019 12th German Microwave Conference (GeMiC)最新文献

筛选
英文 中文
Conformal Antennas for a Wide View Angle in Automotive Radar 汽车雷达宽视角共形天线
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698188
Jonathan Mayer, Lukas Matter, Benjamin Nuss, J. Kowalewski, T. Zwick
{"title":"Conformal Antennas for a Wide View Angle in Automotive Radar","authors":"Jonathan Mayer, Lukas Matter, Benjamin Nuss, J. Kowalewski, T. Zwick","doi":"10.23919/GEMIC.2019.8698188","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698188","url":null,"abstract":"The angular view of a single radar sensor can be successfully enlarged with the help of conformal antenna arrays. This way a round-view of the environment can be achieved what is crucial for autonomous driving. The advantages of these systems and the number of necessary channels are investigated in this work. Therefore, different setups were designed and tested at 24 GHz considering different criteria like view angle, unambiguous range and gain over the whole field of view. Beneath pattern measurements, radar similar tests were done in an antenna measurement chamber. The work shows that conformal antennas can widen the view angle of a radar, e. g. an angular view >180° was possible with a resolution of 14° for a 4 × 8 multiple-input multiple-output (MIMO) system (4 transmitters, 8 receivers). However, enough transmit and receive channels are necessary to cover a suitable view angle.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126851073","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: 5
Design and Numerical Analysis of a Ka-Band Patch Antenna for Structural Health Monitoring Applications 结构健康监测ka波段贴片天线的设计与数值分析
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698198
D. H. Nguyen, G. Zimmer, J. Moll, V. Krozer
{"title":"Design and Numerical Analysis of a Ka-Band Patch Antenna for Structural Health Monitoring Applications","authors":"D. H. Nguyen, G. Zimmer, J. Moll, V. Krozer","doi":"10.23919/GEMIC.2019.8698198","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698198","url":null,"abstract":"This paper presents a design of Ka-Band microstrip patch antenna array for structural health monitoring (SHM) applications. Following a successful SHM system for wind turbine blades, the antenna is developed for the frequency band 33.4 GHz – 36 GHz. Horn antennas in the current system could be replaced with microstrip patch array for better integration, possible radome utility, smaller dimensions with similar antenna gain, and lower signal loss due to interconnects. The array is constructed from 4x4 radiating elements, probe fed with capacitive coupling. This approach assures dual-polarization capabilities in the future in contrast to standard aperture approaches. A novelty is also the introduction of integrated cavities, which improve antenna bandwidth and patterns. Simulation results show relative impedance bandwidth (return loss better than 15 dB) of 13.1 %, at resonance frequency fo = 35 GHz. Gain is about 17.3 dBi, and side-lobe level (SLL) is lower than -15 dB on E-plane (ϕ = 0°).","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122815819","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
Dual Band Metamaterial Power Divider with Improved Relative Bandwidth for LTE Applications LTE应用中具有改进相对带宽的双频超材料功率分配器
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698192
I. Mocanu, L. Manoliu
{"title":"Dual Band Metamaterial Power Divider with Improved Relative Bandwidth for LTE Applications","authors":"I. Mocanu, L. Manoliu","doi":"10.23919/GEMIC.2019.8698192","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698192","url":null,"abstract":"A dual band power divider for Long Term Evolution (LTE) standard is implemented using metamaterial transmission lines. First, a study regarding the influence of symmetry and number of cells over the performances is carried on. The behaviour of the power divider is then, analysed in the frequency domain and great agreement between theory and simulation is achieved. The novelty of this paper is the usage of Dual Composite Right Left Handed (D-CRLH) transmission lines, which are optimized both from the performances’ point of view and the technological constrains, to design a dual band power divider with good results for both frequencies. Measurements confirm the dual band behaviour of the power divider.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127765781","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
AlGaN/GaN High Electron-mobility Varactors on Silicon Substrate 硅衬底上的AlGaN/GaN高电子迁移率变容管
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698186
R. Amirpour, D. Schwantuschke, P. Brueckner, R. Quay, O. Ambacher
{"title":"AlGaN/GaN High Electron-mobility Varactors on Silicon Substrate","authors":"R. Amirpour, D. Schwantuschke, P. Brueckner, R. Quay, O. Ambacher","doi":"10.23919/GEMIC.2019.8698186","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698186","url":null,"abstract":"This paper gives a first presentation of an AlGaN/GaN high electron-mobility varactor grown on a high resistivity silicon substrate. The technology is compared to a GaN on silicon carbide technology and the devices are characterized by fitting a large-signal model. Compared to GaN on SiC varactors a similar performance is achieved. Only slightly increased losses due to higher sheet and contact resistance lower the Q-factor of the GaN on Si varactor.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128693039","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 High Precision Reconfigureable Bistatic Interferometric Radar with Integrated Six-port Receiver at 60 GHz 60 GHz高精度可重构双基地干涉雷达集成六口接收机
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698190
M. Voelkel, S. Mann, M. Frank, R. Weigel, A. Hagelauer
{"title":"A High Precision Reconfigureable Bistatic Interferometric Radar with Integrated Six-port Receiver at 60 GHz","authors":"M. Voelkel, S. Mann, M. Frank, R. Weigel, A. Hagelauer","doi":"10.23919/GEMIC.2019.8698190","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698190","url":null,"abstract":"In this paper a 60 GHz bistatic reconfigureable six-port radar for high precision measuring is presented. The front-end is designed in a substrate-integrated waveguide technology including coupler, attenuator and transmission lines. The core of the front-end is a integrated six-port receiver MMIC including the passive six-port structure, a LNA and four detectors. It has been designed using a 0.13 μm SiGe BiCMOS process. A BGT60, stabilized by a PLL-circuit, generates the transmit signal for vivaldi antennas. The system includes also a baseband circuit with adjustable differential amplifier, 24 bit@52kSa/s ADC converter for signal sampling and DAC converter for gain and attenuation tuning. Furthermore, the stacked system is directly connected to a FPGA board. A full NIOS2 system is set up to control the radar and send the collected data via ethernet to the PC. C++ software is written to configure the system in an easy comfortable way and to visualize the measured data. Measurements show, that the radar works in a range up to five meter. The maximum distance deviation at 1 m is 30 μm and the standard deviation is 12.6 μm.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122054465","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
RF-Noise Model Extraction Procedure for Distributed Multiport Models 分布式多端口模型的射频噪声模型提取方法
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698155
F. Heinz, D. Schwantuschke, M. Ohlrogge, A. Leuther, O. Ambacher
{"title":"RF-Noise Model Extraction Procedure for Distributed Multiport Models","authors":"F. Heinz, D. Schwantuschke, M. Ohlrogge, A. Leuther, O. Ambacher","doi":"10.23919/GEMIC.2019.8698155","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698155","url":null,"abstract":"A parameter extraction procedure for noise models in distributed multiport topology is presented. This model topology is able to describe the small-signal behavior of high electron mobility transistors (HEMTs) even in the sub millimeter-wave regime while providing full model-scalability. The method introduces an efficient way to extract both the active, intrinsic transistor parameters and the noise properties for distributed multiport models. A fully scalable small-signal and noise-model of a 50 nm metamorphic HEMT technology in the distributed multiport approach is presented.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115388350","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
High RCS Passive Tag based on Dielectric Resonator - 2D Lens Combination 基于介电谐振腔-二维透镜组合的高RCS无源标签
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698178
A. A. Abbas, M. El-Absi, A. Abuelhaija, K. Solbach, T. Kaiser
{"title":"High RCS Passive Tag based on Dielectric Resonator - 2D Lens Combination","authors":"A. A. Abbas, M. El-Absi, A. Abuelhaija, K. Solbach, T. Kaiser","doi":"10.23919/GEMIC.2019.8698178","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698178","url":null,"abstract":"In this paper, a Lens–Dielectric Resonator combination is proposed to improve RCS of dielectric resonator tags to be used in a self-localization system where high RCS is essential to combat clutter signals. As a proof of concept, a cylindrical dielectric resonator is located in the focal area of a 200 mm diameter (3.5 λ at 5.2 GHz) 2D Luneburg Lens sandwiched between two tapered metal plates. Two approaches of realizing the continuous variation of the Luneburg lens dielectric permittivity are implemented, fabricated, and tested: by using stepped cylindrical layers of dielectric material (fabricated by machining process) and by using effective medium theory in which the lens is constructed from a group of cells made of various cuboids sizes connected to trapezoidal rods (fabricated by 3D printing technology using PP). A good compatibility between DR and lens is observed. The improvement in RCS is found to vary depending on DR resonance mode. For the HE11 mode, a 20 dB improvement is achieved.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114539070","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: 7
An Ultra-Wideband 3-23 GHz VCO Array with high continuous tuning range for FMCW Radar application 一种用于FMCW雷达的具有高连续调谐范围的超宽带3- 23ghz VCO阵列
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698168
Tom Drechsel, N. Joram, F. Ellinger
{"title":"An Ultra-Wideband 3-23 GHz VCO Array with high continuous tuning range for FMCW Radar application","authors":"Tom Drechsel, N. Joram, F. Ellinger","doi":"10.23919/GEMIC.2019.8698168","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698168","url":null,"abstract":"This paper presents an ultra-wideband (UWB) signal source which features an array of three wideband voltage controlled oscillators (VCO) and is tunable from 3.2 GHz to 22.7 GHz with a relative tuning range of 150 %. The maximum continuous tuning range is 10 GHz and the phase noise is between -106 dBc/Hz and -126 dBc/Hz at 1 MHz offset. The system can operate as a small and low cost frequency synthesizer which generates frequency chirps with a very high chirp bandwidth for FMCW primary radar applications with high range resolution. The ASIC was fabricated using a 130 nm SiGe technology. It employs a prescaler, a totem-pole power amplifier for single-ended high power output and is fully self-biased. The typical power consumption amounts to 300 mW. It occupies a chip area of 1.8 mm2.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125260579","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: 6
Millimeter-Wave Leaky-Wave Antennas Based on Polymer Rod with Periodic Annular Metal Strips 基于周期性环形金属条聚合物棒的毫米波漏波天线
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698170
U. Dey, Julian Tonn, J. Hesselbarth
{"title":"Millimeter-Wave Leaky-Wave Antennas Based on Polymer Rod with Periodic Annular Metal Strips","authors":"U. Dey, Julian Tonn, J. Hesselbarth","doi":"10.23919/GEMIC.2019.8698170","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698170","url":null,"abstract":"Leaky-wave antennas based on a polymer rod, operating at Ka-frequency band, are presented. A periodic pattern of 50 annular metal rings is applied to the polymer rod, resulting in a radiation pattern scanning with frequency. The antennas are operating either in the fundamental HE11 mode or in the rotationally symmetric TM01 mode, the latter resulting in omnidirectional radiation pattern. The antennas are fed via transitions to rectangular waveguide and coaxial waveguide, respectively. The designs are verified by measurements. Operating in HE11 mode, a gain between 12 dBi and 18 dBi is measured at frequencies from 27 GHz to 40 GHz, while scanning over 55 degrees angle in direction. The peak frequency scanning resolution amounts to 8.3 degrees per GHz. Operating in TM01 mode, a gain between 12 dBi and 16 dBi is measured at frequencies from 33 GHz to 40 GHz, while scanning over 34 degrees angle in direction. The peak frequency scanning resolution is 6.5 degrees per GHz.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117122446","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: 4
Numerical Analysis of Two-Dimensional Waveguide Patches for Surface Damage Detection 二维波导贴片表面损伤检测的数值分析
2019 12th German Microwave Conference (GeMiC) Pub Date : 2019-03-25 DOI: 10.23919/GEMIC.2019.8698193
J. Moll
{"title":"Numerical Analysis of Two-Dimensional Waveguide Patches for Surface Damage Detection","authors":"J. Moll","doi":"10.23919/GEMIC.2019.8698193","DOIUrl":"https://doi.org/10.23919/GEMIC.2019.8698193","url":null,"abstract":"A novel method for damage detection in metallic structures has been introduced recently based on the concept of jointed electromagnetic waveguides. Here, the electromagnetic waveguide is formed by an open waveguide placed on top of the host structure to be inspected. Electromagnetic waves propagating in the waveguide interact sensitively with a structural damage leading to changes in the scattering parameters. The main goal of the present paper is the numerical analysis of two-dimensional waveguide patches in the frequency band from 2 GHz to 8GHz. A parametric numerical analysis has been performed for through holes at different positions and for holes with different diameters.","PeriodicalId":312331,"journal":{"name":"2019 12th German Microwave Conference (GeMiC)","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125136615","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: 5
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信
小红书