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A novel sensor design for the determination of dielectric profiles using time domain reflectometry 一种利用时域反射法测定介电剖面的新型传感器设计
2009 European Microwave Conference (EuMC) Pub Date : 2009-10-30 DOI: 10.23919/EUMC.2009.5296291
B. Will, M. Gerding
{"title":"A novel sensor design for the determination of dielectric profiles using time domain reflectometry","authors":"B. Will, M. Gerding","doi":"10.23919/EUMC.2009.5296291","DOIUrl":"https://doi.org/10.23919/EUMC.2009.5296291","url":null,"abstract":"The measurement of dielectric profiles, for example for the determination moisture distributions in natural soils, gets more and more important. One common setup for dielectric measurements uses time domain reflectometry (TDR) techniques. Actually, standard measurement setups give only mean or point-wise results, but for many applications it is necessary to determine a dielectric profile. Two different basic setups for the determination of dielectric profiles with a resolution in a centimeter range are presented in this contribution. Both setups are based on time domain re-flectometry (TDR) measurements. On the one hand an arbitrary spatial resolution is achieved by a movable dielectric obstacle, which causes a discontinuity along the sensor line. On the other hand a sensor based on remotely switched diodes allows the determination of a spatially resolved dielectric profile by discrete steps. Both setups have the advantage that the spatial resolution is independent of the material of interest. Thus it is even possible to determine a dielectric profile of a material with continuously varying permittivities.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122305705","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
Corrugated waveguide slow-wave structure for THz travelling wave tube 太赫兹行波管的波纹波导慢波结构
2009 European Microwave Conference (EuMC) Pub Date : 2009-10-30 DOI: 10.23919/EUMC.2009.5296183
M. Mineo, C. Paoloni, A. Di Carlo, A. Fiorello, M. Dispenza
{"title":"Corrugated waveguide slow-wave structure for THz travelling wave tube","authors":"M. Mineo, C. Paoloni, A. Di Carlo, A. Fiorello, M. Dispenza","doi":"10.23919/EUMC.2009.5296183","DOIUrl":"https://doi.org/10.23919/EUMC.2009.5296183","url":null,"abstract":"THz applications require sources and amplifiers compact, lightweight and powerful. Vacuum electron devices are the candidate solution. Among others, the Corrugated Waveguide Slow-Wave Structure seems particularly suitable for Traveling Wave Tubes in the THz region. THz vacuum electron devices require high precision technological processes with high aspect ratio such as SU-8 process. However, fabrication tolerances could highly affect the overall performances. Therefore a statistical analysis is fundamental for a reliable design. In this summary it is proposed a method based on an analytical model of the corrugated waveguide together with the Pierce theory, to fastly compute the gain of corrugated waveguide vacuum traveling wave tubes. The method is validated by three-dimensional electromagnetic softwares, both for cold and hot parameters. The proved accuracy and fast computation time make the model suitable for performing the sensitivity analysis of the Corrugated waveguide Vacuum tube to be realized by SU-8 technology process.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114246646","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: 10
A new approach for an embedded Wi-Fi controller in a C band phased array antenna C波段相控阵天线嵌入式Wi-Fi控制器的一种新方法
2009 European Microwave Conference (EuMC) Pub Date : 2009-10-30 DOI: 10.23919/EUMC.2009.5296423
M. Cicolani, A. De Luca, G. Schettini, M. Teglia
{"title":"A new approach for an embedded Wi-Fi controller in a C band phased array antenna","authors":"M. Cicolani, A. De Luca, G. Schettini, M. Teglia","doi":"10.23919/EUMC.2009.5296423","DOIUrl":"https://doi.org/10.23919/EUMC.2009.5296423","url":null,"abstract":"Modern phased array antennas in radar systems are composed of several thousands of transmit/receive modules (TRM). Performance of radars are strongly related to the correct functioning of the control chain for such modules. It is therefore fundamental to perform diagnostic and monitoring of main characteristics of active array components; in this way, system performance may be checked and, if necessary, suitable actions to guarantee them may be actuated.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121972194","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
Computer-aided design of substrate integrated waveguide filters for microwave and millimeter-wave applications 用于微波和毫米波应用的基板集成波导滤波器的计算机辅助设计
2009 European Microwave Conference (EuMC) Pub Date : 2009-10-30 DOI: 10.23919/EUMC.2009.5295949
F. Mira, Á. Blas, S. Cogollos, V. E. Borla, B. Gimeno
{"title":"Computer-aided design of substrate integrated waveguide filters for microwave and millimeter-wave applications","authors":"F. Mira, Á. Blas, S. Cogollos, V. E. Borla, B. Gimeno","doi":"10.23919/EUMC.2009.5295949","DOIUrl":"https://doi.org/10.23919/EUMC.2009.5295949","url":null,"abstract":"In this paper, a Computer-Aided Design (CAD) tool of Substrate Integrated Waveguide (SIW) filters for high frequency applications is described. Some synthesis techniques are successfully combined with a fast and accurate full-wave analysis method, thus designing several practical examples of in-line and cross-coupled SIW filters. Prototypes have been manufactured and measured showing good results for different filter topologies. A novel zigzag coupling scheme is proposed for SIW compact filters in order to achieve very restrictive specifications of ultra-wideband (UWB) systems.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122583532","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: 8
Quasi-optical spectral system for submm-wave radiometry of turbulent plasma 湍流等离子体亚毫米波辐射测量的准光谱系统
2009 European Microwave Conference (EuMC) Pub Date : 2009-10-30 DOI: 10.23919/EUMC.2009.5296139
S. Kuznetsov, A. Arzhannikov, Y. Goncharov, Yu.V. Marunenko, F. B. Bereziuk, A. Zorenko, A. V. Gelfand, N. I. Fedorinina
{"title":"Quasi-optical spectral system for submm-wave radiometry of turbulent plasma","authors":"S. Kuznetsov, A. Arzhannikov, Y. Goncharov, Yu.V. Marunenko, F. B. Bereziuk, A. Zorenko, A. V. Gelfand, N. I. Fedorinina","doi":"10.23919/EUMC.2009.5296139","DOIUrl":"https://doi.org/10.23919/EUMC.2009.5296139","url":null,"abstract":"We present the results of experimental development of the original multichannel quasi-optical radiometric system intended for fast-response spectral measurements of 210–530GHz-emission from hot and turbulent plasma at the GOL-3 nuclear fusion plasma facility. The system employs a scheme with quasi-optical demultiplexing of the input radiation beam onto separate spatial channels with subsequent frequency filtering by quasi-optical metal mesh filters and spectral signal detection by calibrated Shottky-diode-based receivers. Experimental realization and testing is considered by the example of a four-channel system incorporating anisotropic-mesh-based band-pass filters with polarization-sensitive transmission bands (FWHM 35–50GHz) that allows us to use only two hardware filters for selecting four spectral bands.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"31 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132977418","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: 10
Use of bio-resonance effects for medical diagnostics and therapy 生物共振效应在医学诊断和治疗中的应用
2009 European Microwave Conference (EuMC) Pub Date : 2009-10-30 DOI: 10.23919/EUMC.2009.5296383
V. Emelyanov, P. D. Klimenko, V. Baranov, D. P. Klimenko, Valentin A. Rybakov, Valentin S. Siakerski
{"title":"Use of bio-resonance effects for medical diagnostics and therapy","authors":"V. Emelyanov, P. D. Klimenko, V. Baranov, D. P. Klimenko, Valentin A. Rybakov, Valentin S. Siakerski","doi":"10.23919/EUMC.2009.5296383","DOIUrl":"https://doi.org/10.23919/EUMC.2009.5296383","url":null,"abstract":"Novel possibilities of medical diagnostics and therapy on the basis of bio-resonance effects have been described. These effects take place in the frequency range of 30–100 GHz. Within this range there is a so called human individual characteristic frequency (ICF). The methodic of its determination has been described. The diagnostics of possible diseases is based on the correlation tie between human ICF and the large numbers of medical observations. Effect of therapy is achieved during its correction to a patient ICF with use of the electromagnetic irradiation of low intensity (less than 10 mWcm-2).","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124016934","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
Design and fabrication of a 3D-EBG superstrate for patch antennas 贴片天线3D-EBG叠层的设计与制造
2009 European Microwave Conference (EuMC) Pub Date : 2009-10-30 DOI: 10.1109/EUMC.2009.5296382
F. Frezza, L. Pajewski, E. Piuzzi, C. Ponti, G. Schettini
{"title":"Design and fabrication of a 3D-EBG superstrate for patch antennas","authors":"F. Frezza, L. Pajewski, E. Piuzzi, C. Ponti, G. Schettini","doi":"10.1109/EUMC.2009.5296382","DOIUrl":"https://doi.org/10.1109/EUMC.2009.5296382","url":null,"abstract":"A layer-by-layer Electromagnetic Band-Gap (EBG) structure has been fabricated by means of alumina rods with square cross-section. The rods have been placed to form a woodpile structure; a square support with thin iron pins has been employed to obtain a precise rods alignment. The design parameters have been chosen to make the structure resonate at 11 GHz, when two identical woodpile layers are employed to form an EBG cavity. At the resonance, a unitary transmission occurs for an incident field, which can be employed in many microwave applications. In particular, a patch antenna has been fabricated to be used with the woodpile cavity, with properties of high directivity.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117247754","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
A new wire patch cell for the exposure of cell cultures to electromagnetic fields at 2.45 GHz: Design and numerical characterization 一种用于细胞培养物暴露于2.45 GHz电磁场的新型线贴片细胞:设计和数值表征
2009 European Microwave Conference (EuMC) Pub Date : 2009-10-30 DOI: 10.1109/EUMC.2009.5296537
A. Paffi, F. Apollonio, M. Liberti, Laura Grandinetti, S. Chicarella, G. D'Inzeo
{"title":"A new wire patch cell for the exposure of cell cultures to electromagnetic fields at 2.45 GHz: Design and numerical characterization","authors":"A. Paffi, F. Apollonio, M. Liberti, Laura Grandinetti, S. Chicarella, G. D'Inzeo","doi":"10.1109/EUMC.2009.5296537","DOIUrl":"https://doi.org/10.1109/EUMC.2009.5296537","url":null,"abstract":"Studies on the interaction between electromagnetic (EM) fields and biological systems have recently gathered further momentum due to the huge diffusion of wireless networks. In order to investigate possible effects on cultured cells of EM fields, in the frequency range typical of such a kind of communication, an in vitro exposure system has been designed and numerically characterized. The system is a Wire Patch Cell (WPC) operating at 2.45 GHz which enables the contemporary exposure of four 35 mm Petri dishes and can be inserted into a commercial incubator. Numerical dosimetry has been carried out by means of the CST Microwave Studio ® simulator. Results indicate a good efficiency, in terms of Specific Absorption Rate (SAR) in the biological sample per 1 W of input power. Moreover, the homogeneity of the SAR distribution inside each Petri dish is around 70 %, considered an acceptable value for such a kind of biological experiments.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126135741","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: 8
Microstrip antenna diplexers for wireless communications 无线通信用微带天线双工器
2009 European Microwave Conference (EuMC) Pub Date : 2009-10-30 DOI: 10.23919/EUMC.2009.5296315
D. Zayniyev, H. Abutarboush, D. Budimir
{"title":"Microstrip antenna diplexers for wireless communications","authors":"D. Zayniyev, H. Abutarboush, D. Budimir","doi":"10.23919/EUMC.2009.5296315","DOIUrl":"https://doi.org/10.23919/EUMC.2009.5296315","url":null,"abstract":"In this paper we present a dual-band antenna integrated with diplexer. Compact microstrip diplexer was designed using pseudo-interdigital stepped impedance bandpass filters with improved stopband. Microstrip patch antenna designed to support dual-band operation at 2.5–2.6 GHz and 5.1–5.5 GHz frequency bands was integrated with diplexer. As a result of integration 20 dB separation of the channels has been achieved. The proposed system can be used in novel architectures for WiMAX RF Front-End.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122707882","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: 11
Scattering by conducting cylinders buried in a dielectric layer 埋在介电层中的导电圆柱体的散射
2009 European Microwave Conference (EuMC) Pub Date : 2009-10-30 DOI: 10.1109/EUMC.2009.5296390
F. Frezza, L. Pajewski, C. Ponti, G. Schettini
{"title":"Scattering by conducting cylinders buried in a dielectric layer","authors":"F. Frezza, L. Pajewski, C. Ponti, G. Schettini","doi":"10.1109/EUMC.2009.5296390","DOIUrl":"https://doi.org/10.1109/EUMC.2009.5296390","url":null,"abstract":"In this work, a theoretical model, for the analysis of 2D electromagnetic scattering of a plane wave by perfectly-conducting objects buried in a dielectric layer, is described. The method is based on the Cylindrical-Wave Approach (CWA), and it can deal with an arbitrary number of cylinders placed in the dielectric layer. A numerical code which solves the scattering problem both in near- and far-field region and for TE and TM polarization has been implemented. The code allows to characterize many realistic scenarios investigated by Surface Penetrating Radars. Results are given for a particular application of scattering by reinforced concrete, which is modelled by a dielectric wall containing an alignment of a finite number of parallel wires.","PeriodicalId":232128,"journal":{"name":"2009 European Microwave Conference (EuMC)","volume":"407 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115323549","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
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