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2018 22nd International Microwave and Radar Conference (MIKON)最新文献

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Time interval measurement technique based on the transformation of the reference oscillation amplitude to time 基于参考振荡幅度对时间的变换的时间间隔测量技术
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-01 DOI: 10.23919/MIKON.2018.8405287
O. Zaytsev, T. Tankeliun, V. Urbanavičius
{"title":"Time interval measurement technique based on the transformation of the reference oscillation amplitude to time","authors":"O. Zaytsev, T. Tankeliun, V. Urbanavičius","doi":"10.23919/MIKON.2018.8405287","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405287","url":null,"abstract":"An original short time interval measurement technique, based on the conversion of the amplitude of the reference oscillation to time, is proposed. The technique consists of the method of converting the measured values of the reference oscillation into oscillation phase between the investigated start-stop events, and the device calculating the time interval corresponding to the phase. An example of the use of the proposed technique in the device for forming the equivalent time-base of the digital oscilloscope is presented in the paper. The accuracy, stability and minimizing jitter possibility of the proposed technique were analyzed. The possibility of practical implementation of the meter of short time intervals, using the components available in the modern market, was carried out. Simulation of the measurement algorithm was made. The prototype of the meter was manufactured and tested. Recommendations on the choice of the optimum frequency of the reference oscillation and the number of periods for averaging were derived.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116676156","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
Towards analog filter-free all-digital transmitters through hybrid estimation and cancellation of ASM's quantization noise 通过混合估计和消除ASM的量化噪声，实现模拟无滤波器全数字发射机
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-01 DOI: 10.23919/MIKON.2018.8405286
Daniel C. Dinis, R. Ma, K. Teo, P. Orlik, Arnaldo S. R. Oliveira, J. Vieira
{"title":"Towards analog filter-free all-digital transmitters through hybrid estimation and cancellation of ASM's quantization noise","authors":"Daniel C. Dinis, R. Ma, K. Teo, P. Orlik, Arnaldo S. R. Oliveira, J. Vieira","doi":"10.23919/MIKON.2018.8405286","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405286","url":null,"abstract":"This paper discusses one first approach towards the design of analog filter-free All-Digital RF Transmitters suitable for multi-band scenarios. In particular, the implementation of a feedforward technique will be targeted with the overall aim of analog canceling the digitally estimated out-of-band quantization noise. Simulated results are presented and evaluated in terms of Normalized Mean Square Error (NMSE), Adjacent Channel Power Ratio (ACPR) and obtained spectra.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121812688","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 novel microstrip dual-layer rat-race coupler with compact size and enhanced bandwidth 一种尺寸紧凑、带宽增强的新型微带双层大鼠型耦合器
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-01 DOI: 10.23919/MIKON.2018.8405161
A. Bekasiewicz, S. Koziel
{"title":"A novel microstrip dual-layer rat-race coupler with compact size and enhanced bandwidth","authors":"A. Bekasiewicz, S. Koziel","doi":"10.23919/MIKON.2018.8405161","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405161","url":null,"abstract":"Microwave hybrid couplers are crucial components of mixers, phase shifters, amplifiers and other high-frequency systems. Conventional couplers are characterized by large size which limits their usefulness in modern applications. In this work, a novel compact rat-race coupler with enhanced bandwidth has been proposed. The structure consists of six compact microstrip resonant cells. It is implemented on two separate layers which permits further size reduction as compared to single-layer topologies. The size of the optimized structure is only 15.3 mm × 19.5 mm (footprint of 297 mm2). The coupler is characterized by 300 MHz bandwidth (symmetrical w.r.t. 1 GHz operating frequency) and nearly perfect power split at the center frequency. The coupler has been favorably compared to state-of-the-art compact structures reported in the literature.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122670778","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
Simulation optimization of H-plane waveguide filters — A new approach h面波导滤波器的仿真优化——一种新方法
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-01 DOI: 10.23919/MIKON.2018.8405166
P. Miazga
{"title":"Simulation optimization of H-plane waveguide filters — A new approach","authors":"P. Miazga","doi":"10.23919/MIKON.2018.8405166","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405166","url":null,"abstract":"One of the most challenging problems in computer aided design is narrow-band filter synthesis. Due to high Q-factor the optimization process is usually very slowly convergent and non-reliable. The paper presents the application of a new synthesis tool for microwave devices in the design of H-plane waveguide filters. The global concurrent multi-objective trust region mini-max optimization algorithm with constraints is capable of optimizing a dozen or more variables. The program is optimized for specific economical hardware.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126233084","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 strength of micromechanically tunable microstrip lines 微机械可调谐微带线的介电强度
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-01 DOI: 10.23919/MIKON.2018.8405317
V. Kazmirenko, I. Golubeva, Y. Prokopenko
{"title":"Dielectric strength of micromechanically tunable microstrip lines","authors":"V. Kazmirenko, I. Golubeva, Y. Prokopenko","doi":"10.23919/MIKON.2018.8405317","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405317","url":null,"abstract":"The paper presents a research of maximum transmit power in tunable microstrip line, limited by electric breakdown phenomena in dielectric part of the device in process of electromechanical control. It is demonstrated, that electric breakdown strength of tunable microstrip line is not worse that in regular microstrip line and improves as signal electrode moves away of substrate's surface. Power capacity of tunable microstrip line improves in the line with wider signal electrode, thicker substrate, and lower substrate permittivity. These requirements contradict tuning efficiency, thus practical design should be based on trade-off between them.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126272987","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
An iterative technique to retrieve the planar wide-mesh scanning near-field data from those affected by an inaccurate positioning 平面宽网格扫描近场数据的迭代反演技术
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-01 DOI: 10.23919/MIKON.2018.8405159
F. D’Agostino, F. Ferrara, C. Gennarelli, R. Guerriero, M. Migliozzi
{"title":"An iterative technique to retrieve the planar wide-mesh scanning near-field data from those affected by an inaccurate positioning","authors":"F. D’Agostino, F. Ferrara, C. Gennarelli, R. Guerriero, M. Migliozzi","doi":"10.23919/MIKON.2018.8405159","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405159","url":null,"abstract":"In this work, an effective near-field to far-field transformation (NFFFT) with planar wide-mesh scanning (PWMS) from NF data affected by known probe-positioning errors is experimentally validated. The related NFFFT from correctly positioned samples allows a remarkable measurement time saving, since the NF data needed by the classical plane-rectangular NFFFT are accurately reconstructed from a reduced number of PWMS samples via a non-redundant sampling representation of the probe voltage developed by shaping the antenna with an oblate ellipsoid. The voltage values at the sampling points specified from the representation are unknown and are effectively recovered by the inaccurately positioned ones by an iterative approach. Experimental results assessing the validity of such an approach are reported.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130580253","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
Tracking and data fusion with the Hensoldt Passive Radar System 跟踪和数据融合与亨索尔特无源雷达系统
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-01 DOI: 10.23919/MIKON.2018.8405238
D. Fränken, Oliver Zeeb
{"title":"Tracking and data fusion with the Hensoldt Passive Radar System","authors":"D. Fränken, Oliver Zeeb","doi":"10.23919/MIKON.2018.8405238","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405238","url":null,"abstract":"Hensoldt has developed a multiband passive radar system which uses analog and digital audio and/or video broadcasting stations to create an air situation picture. This paper presents the tracking and data fusion used in the Hensoldt Passive Radar System. The software architecture is described. Tracking results will demonstrate both overall surveillance performance as well as the capability to track maneuvering targets.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131378220","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
Large deformations of unstructured meshes with linear elasticity for applications in computational electromagnetics 线性弹性非结构网格的大变形在计算电磁学中的应用
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-01 DOI: 10.23919/MIKON.2018.8405254
A. Lamecki
{"title":"Large deformations of unstructured meshes with linear elasticity for applications in computational electromagnetics","authors":"A. Lamecki","doi":"10.23919/MIKON.2018.8405254","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405254","url":null,"abstract":"In this paper a modification of the mesh deformation algorithm based on linear elasticity equations is investigated. The technique solves a mesh movement problem as a series of steady-state solutions of linear elasticity equations with inhomogeneous mechanical properties of the material. It is shown that such an iterative version of the algorithm leads to an improved quality of the resulting mesh for large structure deformations, which are common in the case of object rotation. The technique is targeted to finite element simulations in computational electromagnetics.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126952135","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
Technology and performance of E/D-mode InAlN/GaN HEMTs for mixed-signal electronics 用于混合信号电子学的E/ d模式InAlN/GaN hemt技术与性能
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-01 DOI: 10.23919/MIKON.2018.8405249
M. Blaho, D. Gregušová, S. Hascik, J. Kuzmík, A. Chvála, J. Marek, A. Šatka
{"title":"Technology and performance of E/D-mode InAlN/GaN HEMTs for mixed-signal electronics","authors":"M. Blaho, D. Gregušová, S. Hascik, J. Kuzmík, A. Chvála, J. Marek, A. Šatka","doi":"10.23919/MIKON.2018.8405249","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405249","url":null,"abstract":"We describe technology and performance of integrated enhancement/depletion (E/D)-mode n++GaN/InAlN/AlN/GaN HEMTs with a self-aligned gate structure. Identical starting epi-structure was used for both types of devices without additional need for a contacts regrowth. n++GaN cap layer was etched away in the gate trenches of E-mode HEMT while it was left intact for D-mode HEMT. Feasibility of the approach for future fast GaN-based mixed-signal electronic circuits was proved by obtaining alternative HEMT threshold voltage values of 2 V and −5.2 V, invariant maximal output current of ∼0.45 A/mm despite large source-to-drain distances and by demonstrating a functional logic invertor.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122445484","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
Millimeter-wave imaging radar system design based on detailed system radar simulation tool 基于毫米波成像雷达系统设计的详细系统雷达仿真工具
2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-01 DOI: 10.23919/MIKON.2018.8405273
Marie Mbeutcha, G. Ulisse, V. Krozer
{"title":"Millimeter-wave imaging radar system design based on detailed system radar simulation tool","authors":"Marie Mbeutcha, G. Ulisse, V. Krozer","doi":"10.23919/MIKON.2018.8405273","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405273","url":null,"abstract":"This paper presents a 35 GHz direct-digital-synthesizer (DDS)-based FMCW radar for future fully-integrated front-end MIMO radar systems with complex signal generation. The full integration of radar front-ends is a challenge at millimeter-wave frequencies due to poor signal integrity and spectrum purity, which are essential for imaging applications. The radar features a Hartley architecture for conversion image rejection in up-and down-conversion and an enhanced push-pull power amplifier architecture for harmonic cancellation. A radar simulation environment has been developed emulating realistic device performance. An innovative 3D electromagnetic propagation model is proposed to account for the antenna and wave propagation to the target. With the above architecture we achieve a conversion image rejection of −53.5 dBc with an output power above 34 dBm across 1 GHz bandwidth, using various commercial components. A spectral purity less than −130 dBc is achieved for the 2nd and 3rd order harmonic suppression, respectively. The total DC consumption is around 30 W determined by the power amplifier.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126582444","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
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