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2015 European Microwave Conference (EuMC)最新文献

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Electromagnetic techniques to minimize the risk of hazardous local heating around medical implant electrodes during MRI scanning 电磁技术，以尽量减少危险的局部加热周围的医疗植入电极在MRI扫描期间的风险
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345860
S. McCabe, Jonathan B. Scott, S. Butler
{"title":"Electromagnetic techniques to minimize the risk of hazardous local heating around medical implant electrodes during MRI scanning","authors":"S. McCabe, Jonathan B. Scott, S. Butler","doi":"10.1109/EUMC.2015.7345860","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345860","url":null,"abstract":"Magnetic Resonance Imaging (MRI) scans are contraindicated for many patients with medical implants. We establish the circumstances that cause, and the resistances required to ameliorate and to eliminate dangerous levels of MRI-induced heating that occur at the exposed, distal end of an electrical lead implanted in tissue. Simulated predictions are compared with measurements made at 128 MHz in a 3-Tesla MRI machine. A low resistance at kilohertz frequencies is sought by implant makers, in contrast with the high resistance demanded for safety. The practicality of presently-developed strategies to prevent tissue damage is brought into question. We examine the extent to which skin-depth and transmission-line properties can be manipulated to improve safety.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133091554","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: 9
Computer-aided antenna feed design using Characteristic Modes 基于特征模式的计算机辅助天线馈电设计
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345687
B. Raines, E. Elghannai, R. Rojas
{"title":"Computer-aided antenna feed design using Characteristic Modes","authors":"B. Raines, E. Elghannai, R. Rojas","doi":"10.1109/EUMC.2015.7345687","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345687","url":null,"abstract":"A new design technique that provides practical feed designs for arbitrary PEC structures is introduced. The technique requires minimal guidance from a human operator Using the information provided by a modal analysis, known as Characteristic Modes, allows us to construct a feed arrangements solution(s). From this solution(s), we can obtain the number, locations, and excitation voltages of one or more feed ports to excite a set of modes over some specified frequency range. The technique was applied to antennas and shows to provide highly realistic feed arrangements.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116834356","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
MIMO system for fast imaging at 90 GHz 用于90 GHz快速成像的MIMO系统
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345793
R. Herschel, S. Nowok, P. Warok, R. Zimmermann, S. Lang, N. Pohl
{"title":"MIMO system for fast imaging at 90 GHz","authors":"R. Herschel, S. Nowok, P. Warok, R. Zimmermann, S. Lang, N. Pohl","doi":"10.1109/EUMC.2015.7345793","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345793","url":null,"abstract":"A millimeter wave imaging system operating around 90 GHz with 7.5 GHz bandwidth is presented. 2D images with 20 mm resolution in range and 3.2° in azimuth are obtained with an 1×4 MIMO approach. The performance of receiver and transmitter modules driven by a Direct Digital Synthesizer is discussed. Experimental data on radar imaging between 1 and 4 m is shown and the used calibration is discussed in further detail. The system successfully achieves a dynamic range of more than 40 dB.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123402402","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
Asymmetrical coplanar waveguide zeroth-order resonant antenna with extended bandwidth 宽带宽非对称共面波导零级谐振天线
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345863
Yu He, F. Tan, Changjun Liu
{"title":"Asymmetrical coplanar waveguide zeroth-order resonant antenna with extended bandwidth","authors":"Yu He, F. Tan, Changjun Liu","doi":"10.1109/EUMC.2015.7345863","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345863","url":null,"abstract":"This paper presents the design and analysis of a compact coplanar waveguide (CPW)-fed zeroth-order resonant (ZOR) antenna with extended bandwidth. Two new resonant frequencies are obtained by adding two stubs between the main patch and the CPW ground. With the combination of the ZOR frequency and the two new resonant frequencies, a wide bandwidth is achievable and increased up to 58.4%. The efficiency of the antenna is higher than 85% in the entire band from 3.7 GHz to 6.75 GHz. The proposed antenna has a compact size of 21mm×19mm and an omnidirectional radiation pattern, which is applicable in wireless applications at C-band.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122238529","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 fully printed multilayer aperture-coupled patch antenna using hybrid 3D / inkjet additive manufacturing technique 采用混合3D /喷墨增材制造技术的全打印多层孔耦合贴片天线
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345837
Kunal Nate, J. Hester, Michael Isakov, R. Bahr, M. Tentzeris
{"title":"A fully printed multilayer aperture-coupled patch antenna using hybrid 3D / inkjet additive manufacturing technique","authors":"Kunal Nate, J. Hester, Michael Isakov, R. Bahr, M. Tentzeris","doi":"10.1109/EUMC.2015.7345837","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345837","url":null,"abstract":"In this paper, a fully additively manufactured multilayer aperture-coupled patch antenna operating at the ISM band around 2.4 GHz is demonstrated. For the first time, a hybrid additive manufacturing technique was utilized to fully print consecutive conductive and thick dielectric layers for 3D antennas topologies fabrication in the GHz frequency antenna fabrication. The metallization of 3D printed plastic dielectric layers was performed by inkjet printing layers of conductive ink. As a proof of concept, multiple layers of Diamine Silver Acetate (DSA) conductive ink were deposited to form a conductive thin layer on the surface of the 3D printed layers of Verowhite polymer. This novel fully printed antenna fabrication methodology could enable mass production of low cost printed RF circuits and antennas for a variety of scalable wireless sensor network and Internet of Things (IOT) as well as quick RF component prototyping.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130289864","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: 20
K-band MEMS-based frequency adjustable waveguide filter for mobile back-hauling 基于mems的k波段可调频率波导滤波器
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345852
L. Pelliccia, P. Farinelli, R. Sorrentino, G. Cannone, G. Favre, Piero Coassini
{"title":"K-band MEMS-based frequency adjustable waveguide filter for mobile back-hauling","authors":"L. Pelliccia, P. Farinelli, R. Sorrentino, G. Cannone, G. Favre, Piero Coassini","doi":"10.1109/EUMC.2015.7345852","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345852","url":null,"abstract":"This paper presents the first experimental results of a novel MEMS-based waveguide filter for mobile back-hauling at K-band with adjustable centre frequency. The tuning concept employs commercial packaged RF MEMS switches, wire-bonded within a rectangular cavity. The switches are used to perturb the current distribution of the TE101 mode so as to tune the resonant frequency of the cavity. A tuning range up to 2% with unloaded Qs of the order of 1000 in K-band can be obtained. A 2nd order filter prototype employing commercially available MEMS on silicon substrate has been tested. Measurements show a 160 MHz frequency shift (0.7%) and Qs up to 1000 using only one MEMS per resonator. New prototypes using low-loss substrate MEMS (e.g. quartz) will be fabricated in order to get higher Qs.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127933673","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 passive temperature sensor based on a printed magnetoinductive-wave (MIW) delay line 一种基于印刷磁感波延迟线的无源温度传感器
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345750
F. Herraiz-Martínez, J. Martínez-Cebrián, D. Segovia-Vargas
{"title":"A passive temperature sensor based on a printed magnetoinductive-wave (MIW) delay line","authors":"F. Herraiz-Martínez, J. Martínez-Cebrián, D. Segovia-Vargas","doi":"10.1109/EUMC.2015.7345750","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345750","url":null,"abstract":"Novel fully passive and electromagnetic sensors are proposed. These sensors are implemented with magnetoinductive-wave (MIW) delay lines. Such lines are composed of a periodic array of coupled square split ring resonators (SSRRs) and propagate slow waves. A reflector with a transducer element (temperature, moisture, etc.) is coupled to the end of the MIW line. When the sensor is interrogated with a pulse in time domain, the reflector produces a replica of the original pulse modulated in amplitude, which depends on the magnitude under sensing. Thanks to the slow group velocity of the MIW delay line, the replica and the original pulse are not overlapped in time domain and can be demodulated, thus obtaining a measurement of the magnitude. A design of a temperature sensor based on the proposed technology is presented. The reported results validate the proposed approach and the feasibility of the proposed application.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128008226","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
Coupled-oscillator system with two stable phase-shift intervals 具有两个稳定相移间隔的耦合振荡器系统
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMIC.2015.7345167
F. Ramírez, A. Suárez, S. Sancho
{"title":"Coupled-oscillator system with two stable phase-shift intervals","authors":"F. Ramírez, A. Suárez, S. Sancho","doi":"10.1109/EUMIC.2015.7345167","DOIUrl":"https://doi.org/10.1109/EUMIC.2015.7345167","url":null,"abstract":"In this work, a coupled-oscillator system with coupling networks containing discrete transmissions lines, made up of inductors and varactors, is presented. Under weak coupling conditions, it is possible to obtain two stable phase-shift intervals, -90° to 90° and 90° to 270°, by using two different values of the varactor bias voltage. For each of these two bias voltages, the inter-stage phase shift is varied with the tuning voltage of the outermost oscillators, so the use of the discrete lines provides a simple mechanism to increase the phase-shifting capabilities. The two bias voltages of the line varactor diodes are selected so as to obtain optimum operation conditions in each phase interval, with minimum frequency deviation, maximum and unambiguous tuning parameter excursion and a flat phase-noise response versus the imposed phase shift. The impact of the novel type of coupling network on the stability properties is investigated with an explicit semi-analytical formulation. Agreement has been obtained with measured results.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121457766","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
Systematic design of MIMO terminal antennas using theory of characteristic modes 基于特征模理论的MIMO终端天线系统设计
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345688
B. K. Lau
{"title":"Systematic design of MIMO terminal antennas using theory of characteristic modes","authors":"B. K. Lau","doi":"10.1109/EUMC.2015.7345688","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345688","url":null,"abstract":"The Theory of Characteristic Modes (TCM) offers a natural and systematic way to design Multiple-Input Multiple-Output (MIMO) antennas with high total efficiency and uncorrelated antenna patterns. In this paper, recent advances in the growing field of TCM-aided MIMO antenna design are reviewed. In particular, the focus is on the challenging problem of designing MIMO antennas for compact mobile terminals below 1 GHz. It was found that low correlation can be achieved by allowing only one antenna to excite the single-mode terminal chassis. However, this led to small bandwidths for other antennas. To improve the bandwidth performance, the chassis could be slightly modified to support multiple excitable modes, which can give larger bandwidths for the multi-antennas designed to couple into these modes.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122834377","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
Thermal model of skin-equivalent phantoms at 60 GHz 等效皮肤模型在60 GHz下的热模型
2015 European Microwave Conference (EuMC) Pub Date : 2015-12-03 DOI: 10.1109/EUMC.2015.7345859
C. Leduc, M. Zhadobov, R. Sauleau
{"title":"Thermal model of skin-equivalent phantoms at 60 GHz","authors":"C. Leduc, M. Zhadobov, R. Sauleau","doi":"10.1109/EUMC.2015.7345859","DOIUrl":"https://doi.org/10.1109/EUMC.2015.7345859","url":null,"abstract":"This paper reports the first analytical thermal model of a finite millimeter-wave phantom emulating the electromagnetic properties of human skin at 60 GHz. This model is obtained by solving the one-dimensional (1D) heat transfer equation (HTE). The analytical results calculated for several phantom thicknesses (5mm, 10mm, and 15mm) have been compared to the 1D analytical solution of the bio-heat transfer equation (BHTE) for a semi-infinite phantom model as well as to electromagnetic-thermal co-simulation results obtain using CST Microwave Studio. An excellent agreement is observed between the analytical and numerical results (deviations around 1%), and, as expected, a convergence toward the BHTE result is observed when increasing the phantom thickness.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123979077","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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