发布求助
文献互助 智能选刊 最新文献

2019 Conference on Microwave Techniques (COMITE)最新文献

筛选
英文 中文
Complex Relative Permittivity Measurement of Selected 3D-Printed Materials up to 10 GHz 复杂相对介电常数测量选定的3d打印材料高达10 GHz
2019 Conference on Microwave Techniques (COMITE) Pub Date : 2019-04-16 DOI: 10.1109/COMITE.2019.8733590
Jaroslav Zechmeister, J. Lacik
{"title":"Complex Relative Permittivity Measurement of Selected 3D-Printed Materials up to 10 GHz","authors":"Jaroslav Zechmeister, J. Lacik","doi":"10.1109/COMITE.2019.8733590","DOIUrl":"https://doi.org/10.1109/COMITE.2019.8733590","url":null,"abstract":"In this contribution, the complex relative permittivity of selected materials for additive manufacturing 3D print technology is measured. The included materials are acrylonitrile butadiene styrene (ABS), polyethylene terephthalate (PET), polylactic acid (PLA), XT co-polyester and special material with admixture of cork. The samples for measurement are made by Prusa 3D printer and the manufacturing properties like necessary precision, melting temperature and mechanic properties of each material are discussed. For broadband measurement in the frequency range from 1 to 10 GHz, the transmission/reflection method is exploited. The scattering parameters of material samples located in a N-type male coaxial adapter with air dielectric are measured by vector network analyzer and the complex relative permittivity of measured samples is extracted. The results show that the real part of the relative permittivity of materials is in the range from 2.55 to 2.95 and the imaginary one is from 0.007 to 0.08.","PeriodicalId":143358,"journal":{"name":"2019 Conference on Microwave Techniques (COMITE)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123089590","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: 21
Accurate Excitation of Waveguides Using Discrete Ports Together With TRL Calibration 使用离散端口和TRL校准的波导精确激励
2019 Conference on Microwave Techniques (COMITE) Pub Date : 2019-04-16 DOI: 10.1109/COMITE.2019.8733571
U. Schumann, A. Jöstingmeier, A. Omar
{"title":"Accurate Excitation of Waveguides Using Discrete Ports Together With TRL Calibration","authors":"U. Schumann, A. Jöstingmeier, A. Omar","doi":"10.1109/COMITE.2019.8733571","DOIUrl":"https://doi.org/10.1109/COMITE.2019.8733571","url":null,"abstract":"A new method for the enhancement of the accuracy of the calculation of the scattering parameters of microwave devices is presented if discrete ports are used for the excitation of the structure to be investigated. It is shown how the inaccuracies of the simulation results inherent to the use of such discrete ports can be avoided by the additional application of the TRL calibration technique. This method, which is well-known in the high-frequency measurement realm, is briefly revised. The applicability of the proposed method is demonstrated for microwave structures with shielded as well as open waveguide terminals. Two examples are discussed in detail, namely, the excitation of a shielded structure with coaxial waveguide terminals and that of an open structure with microstip line terminals using appropriate discrete ports, respectively. Simulation results are given and their accuracy is assessed by comparing them to a corresponding waveguide port excitation.","PeriodicalId":143358,"journal":{"name":"2019 Conference on Microwave Techniques (COMITE)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114487682","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
Steerable Bifocal Lens-Array Antenna at 57-64 GHz 57-64 GHz可操纵双焦透镜阵列天线
2019 Conference on Microwave Techniques (COMITE) Pub Date : 2019-04-16 DOI: 10.1109/COMITE.2019.8733592
O. Bolkhovskaya, Valentin Seleznev, A. Rulkov, A. Maltsev
{"title":"Steerable Bifocal Lens-Array Antenna at 57-64 GHz","authors":"O. Bolkhovskaya, Valentin Seleznev, A. Rulkov, A. Maltsev","doi":"10.1109/COMITE.2019.8733592","DOIUrl":"https://doi.org/10.1109/COMITE.2019.8733592","url":null,"abstract":"The Steerable Bifocal Lens-Array Antenna (SB-LAA) of the millimeter wave range 57-64 GHz, with 2D beam-steering capability is described. The physical effects allowing the developed antenna to focus and direct the main beam are considered. The results of calculating the bifocal profile of the lens, performed in the approximation of geometric optics, are presented. The characteristics of the SB-LAA were evaluated by direct electromagnetic simulations. Experimental studies of the SB-LAA prototype characteristics were carried out. The results demonstrate that the developed antenna system can be used for high speed data transmission (flexible backhauling) between small-cell base stations and network nodes of modern cellular systems at distances up to 100-300 meters.","PeriodicalId":143358,"journal":{"name":"2019 Conference on Microwave Techniques (COMITE)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129557858","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
Adaptive Pulse Compression Filter in Radar Receiver Application 自适应脉冲压缩滤波器在雷达接收机中的应用
2019 Conference on Microwave Techniques (COMITE) Pub Date : 2019-04-01 DOI: 10.1109/COMITE.2019.8733430
P. Bezousek, S. Karamazov, J. Rolecek
{"title":"Adaptive Pulse Compression Filter in Radar Receiver Application","authors":"P. Bezousek, S. Karamazov, J. Rolecek","doi":"10.1109/COMITE.2019.8733430","DOIUrl":"https://doi.org/10.1109/COMITE.2019.8733430","url":null,"abstract":"In the paper the matched compression filter, the compression filter with minimum sidelobe energy and with maximum peak to sidelobe ratio for linear and nonlinear frequency modulated signals are presented and compared. Then application of those filters in radars in various clutter situations are discussed.","PeriodicalId":143358,"journal":{"name":"2019 Conference on Microwave Techniques (COMITE)","volume":"176 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114524690","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
Optical Sensors Utilization as a Part of Intelligent Transport Systems 光学传感器在智能交通系统中的应用
2019 Conference on Microwave Techniques (COMITE) Pub Date : 2019-04-01 DOI: 10.1109/COMITE.2019.8733538
J. Dubovan, M. Frniak, J. Litvik, M. Markovic, M. Dado
{"title":"Optical Sensors Utilization as a Part of Intelligent Transport Systems","authors":"J. Dubovan, M. Frniak, J. Litvik, M. Markovic, M. Dado","doi":"10.1109/COMITE.2019.8733538","DOIUrl":"https://doi.org/10.1109/COMITE.2019.8733538","url":null,"abstract":"Optical fibre sensors are becoming a very promise technology for remote sensing. This technology provides a few advantages with compared to classical electrical sensors like tolerance to the electromagnetic interference, usability in problematic environment and higher precision of obtained data. In this article will be introduce possibilities of utilized optical fibre and fibre Bragg gratings. Optical fibre without special adjustments can be used as geological sensor where micro and macro bends allow to detect of deformation zone. Fibre Bragg grating sensors provide larger sensing possibilities with higher accuracy at certain point. We are experimentally used these sensors as a part of vehicle in motion weighing application that is implemented as a test platform in the University of Zilina campus. By this sensor network it was successfully detected particular axles (wheels) of moving vehicle while its speed was 43.5 km.h−1.","PeriodicalId":143358,"journal":{"name":"2019 Conference on Microwave Techniques (COMITE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131393645","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
COMITE 2019 Index of Authors COMITE 2019作者索引
2019 Conference on Microwave Techniques (COMITE) Pub Date : 2019-04-01 DOI: 10.1109/comite.2019.8733552
{"title":"COMITE 2019 Index of Authors","authors":"","doi":"10.1109/comite.2019.8733552","DOIUrl":"https://doi.org/10.1109/comite.2019.8733552","url":null,"abstract":"","PeriodicalId":143358,"journal":{"name":"2019 Conference on Microwave Techniques (COMITE)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123622046","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
Dielectric Properties of (Mg(1-x)Cox)2SnO4 for Application in Dielectric Resonator Temperature Sensor 用于介电谐振温度传感器的(Mg(1-x)Cox)2SnO4介电特性
2019 Conference on Microwave Techniques (COMITE) Pub Date : 2019-04-01 DOI: 10.1109/COMITE.2019.8733469
Yih-Chien Chen, Yue-Xuan Du
{"title":"Dielectric Properties of (Mg(1-x)Cox)2SnO4 for Application in Dielectric Resonator Temperature Sensor","authors":"Yih-Chien Chen, Yue-Xuan Du","doi":"10.1109/COMITE.2019.8733469","DOIUrl":"https://doi.org/10.1109/COMITE.2019.8733469","url":null,"abstract":"The microwave dielectric properties of (Mg1-xCox)2SnO4 were investigated by X-ray diffraction (XRD) patterns, Rietveld refinement, Raman spectroscopy, and microstructural observation. The ceramic was prepared using the conventional solid-state reaction method. (Mg<inf>0.95</inf>Co<inf>0.05</inf>)<inf>2</inf>SnO<inf>4</inf> ceramic that was sintered at 1550 °C for 4 h had a dielectric constant ( ) of 8.3, a quality factor (ε<inf>r</inf>) of 8.3, a quality factor (Q×f) of 120,200 GHz (at 17.6 GHz), and a temperature coefficient of resonant frequency (τ<inf>f</inf>) of -63 ppm/°C. The development process and test results of dielectric resonator antenna temperature sensor composed of (Mg<inf>0.95</inf>Co<inf>0.05</inf>)<inf>2</inf>SnO<inf>4</inf>ceramics were recorded. The resonant frequency and 3 dB bandwidth measured at room temperature were 17.566 GHz and 17.0 MHz, respectively. The sensitivity of -1.1 MHz/°C was successfully achieved.","PeriodicalId":143358,"journal":{"name":"2019 Conference on Microwave Techniques (COMITE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123179582","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
COMITE 2019 TOC 2019年TOC委员会
2019 Conference on Microwave Techniques (COMITE) Pub Date : 2019-04-01 DOI: 10.1109/comite.2019.8733528
{"title":"COMITE 2019 TOC","authors":"","doi":"10.1109/comite.2019.8733528","DOIUrl":"https://doi.org/10.1109/comite.2019.8733528","url":null,"abstract":"","PeriodicalId":143358,"journal":{"name":"2019 Conference on Microwave Techniques (COMITE)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116359389","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 Realization of Novel RF Bandpass Filter Using Short-circuited Coupling Element 基于短路耦合元件的新型射频带通滤波器的设计与实现
2019 Conference on Microwave Techniques (COMITE) Pub Date : 2019-04-01 DOI: 10.1109/COMITE.2019.8733513
Tom Bielik, B. Adamec, V. Hottmar
{"title":"Design and Realization of Novel RF Bandpass Filter Using Short-circuited Coupling Element","authors":"Tom Bielik, B. Adamec, V. Hottmar","doi":"10.1109/COMITE.2019.8733513","DOIUrl":"https://doi.org/10.1109/COMITE.2019.8733513","url":null,"abstract":"In this paper, a development of novel microstrip bandpass filter (BPF) structure is presented using simple lumped element circuit composed from four capacitors and inductance transformer. The design of BPF is based on mathematical modelling of mentioned lumped element circuit and its transformation to planar components determined by transmission line theory. The correctness of proposed technique is demonstrated on practically realized microstrip BPF with center frequency set to 820MHz and −3dB bandwidth of 50MHz.","PeriodicalId":143358,"journal":{"name":"2019 Conference on Microwave Techniques (COMITE)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116371195","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
Theoretical Analysis of Slow-light in π-phase-shifted fiber Bragg grating for sensing applications 传感用π相移光纤光栅慢光的理论分析
2019 Conference on Microwave Techniques (COMITE) Pub Date : 2019-04-01 DOI: 10.1109/COMITE.2019.8733540
Krishna Mohan Dwivedi, G. Trivedi, T. Osuch, Karel Juryca, J. Pidanic
{"title":"Theoretical Analysis of Slow-light in π-phase-shifted fiber Bragg grating for sensing applications","authors":"Krishna Mohan Dwivedi, G. Trivedi, T. Osuch, Karel Juryca, J. Pidanic","doi":"10.1109/COMITE.2019.8733540","DOIUrl":"https://doi.org/10.1109/COMITE.2019.8733540","url":null,"abstract":"In this paper, a theoretical analysis of slow-light in π-phase-shifted fiber Bragg grating (π-FBG) for sensing applications has been presented. The coupled-mode theory (CMT) and transfer matrix method (TMM) have been used to establish the numerical modeling of slow-light in π-FBG. The influence of slow-light grating parameters, such as grating length (L), index change (δn), and loss coefficient (α), on the spectral and on the sensing characteristics of π-FBG are studied in detail. The simulation results show that for the maximum slow-light sensitivity the optimum grating parameters are obtained as L = 5 mm, δn = 1×10−3 and α = 0.10 m−1. The peak transmissivity of 0.55 and a remarkable group-index of 1477 is obtained from the optimized grating. The optimized π-FBG is used for slow-light sensing applications. The highest values of slow-light strain and temperature sensitivity of 8.431 µϵ−1 and 91.6435°C−1, respectively are achieved. The slow-light sensitivity of proposed π-FBG is the highest as compared to apodized FBGs reported in the literature. Therefore, the proposed slow-light π-FBG shows great importance in sensing applications.","PeriodicalId":143358,"journal":{"name":"2019 Conference on Microwave Techniques (COMITE)","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131712048","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
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