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2009 20th International Zurich Symposium on Electromagnetic Compatibility最新文献

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Multi Band noise mitigation in PWR/GND plane pairs by using a 2D EBG structure with square patches and meander lines 利用带有方形补丁和弯曲线的二维EBG结构降低PWR/GND平面对中的多频带噪声
2009 20th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2009-02-13 DOI: 10.1109/EMCZUR.2009.4783402
A. Scogna, Antonio Orlandi
{"title":"Multi Band noise mitigation in PWR/GND plane pairs by using a 2D EBG structure with square patches and meander lines","authors":"A. Scogna, Antonio Orlandi","doi":"10.1109/EMCZUR.2009.4783402","DOIUrl":"https://doi.org/10.1109/EMCZUR.2009.4783402","url":null,"abstract":"In this paper a two dimensional (2D) electromagnetic Bandgap (EBG) structure is proposed for multi band noise mitigation in PWR/GND plane pairs. Excellent noise suppression (-60dB) is achieved in multiple bands within the range 0-8GHz with a low start frequency. Because of the 2D EBG, no additional metal layer is required. Signal Integrity analysis is also studied by modelling a microstrip to stripline transition and by evaluating insertion loss, TDR as well as eye diagram.","PeriodicalId":192851,"journal":{"name":"2009 20th International Zurich Symposium on Electromagnetic Compatibility","volume":"397 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131724547","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
Determination of General Public Exposure to WiMAX Base Stations 确定公众对WiMAX基站的暴露
2009 20th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2009-02-13 DOI: 10.1109/EMCZUR.2009.4783458
Christian Bornkesse, M. Schubert, M. Wuschek
{"title":"Determination of General Public Exposure to WiMAX Base Stations","authors":"Christian Bornkesse, M. Schubert, M. Wuschek","doi":"10.1109/EMCZUR.2009.4783458","DOIUrl":"https://doi.org/10.1109/EMCZUR.2009.4783458","url":null,"abstract":"This paper deals with general public exposure to WiMAX base stations. In Germany, some networks are already in use, which operate in the licensed 3.5 GHz and in the licence-free 5 GHz frequency bands. Using a frequency selective measurement method with extrapolation to maximal operational state of the station it was found, that typical exposures are in the range of 0.003 to 1.4% of the ICNIRP 1998 field strength reference levels [1]. As with mobile phone base stations, distance to the station is not a reliable estimate for exposure, but orientation to the main lobe is. Exposure to stations operating in the licensed band is more than 25 dB higher than for stations in the unlicensed band. A comparison with UMTS stations on the same roof or in the near vicinity shows on average a 13 dB higher exposure to the UMTS stations.","PeriodicalId":192851,"journal":{"name":"2009 20th International Zurich Symposium on Electromagnetic Compatibility","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116397183","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 New Calibration Method for an Electric-field Probe using TEM Waveguides 一种利用透射电镜波导标定电场探头的新方法
2009 20th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2009-02-13 DOI: 10.1109/EMCZUR.2009.4783481
S. Ishigami, M. Hirata
{"title":"A New Calibration Method for an Electric-field Probe using TEM Waveguides","authors":"S. Ishigami, M. Hirata","doi":"10.1109/EMCZUR.2009.4783481","DOIUrl":"https://doi.org/10.1109/EMCZUR.2009.4783481","url":null,"abstract":"Standard gain horn antennas are used as transmitting antennas for the calibration of an electric-field probe above 1 GHz. However, it is difficult to use horn antennas at frequencies below 1 GHz because of their very large dimensions, which make them difficult to handle. Hence, a calibration method for frequencies below 1 GHz is also required. A probe calibration method using a one-port TEM waveguides is proposed in this paper.","PeriodicalId":192851,"journal":{"name":"2009 20th International Zurich Symposium on Electromagnetic Compatibility","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122088625","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
Two Antennas for Differential Mesoband Operation 差分中频操作的双天线
2009 20th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2009-02-13 DOI: 10.1109/EMCZUR.2009.4783378
C. Baum
{"title":"Two Antennas for Differential Mesoband Operation","authors":"C. Baum","doi":"10.1109/EMCZUR.2009.4783378","DOIUrl":"https://doi.org/10.1109/EMCZUR.2009.4783378","url":null,"abstract":"The use of differential high-power sources gives another degree of freedom to antenna design, including two-element arrays. Symmetry considerations are discussed in the context of helical antennas for circular and linear polarizations.","PeriodicalId":192851,"journal":{"name":"2009 20th International Zurich Symposium on Electromagnetic Compatibility","volume":"2018 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125177154","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
Verification of Feed-Through Configurations by Means of Simple Test Apparatus on Component Level 用元件级简易试验装置验证馈通结构
2009 20th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2009-02-13 DOI: 10.1109/EMCZUR.2009.4783462
T. Schmid, M. Wollitzer, L. Halme, B. Mund
{"title":"Verification of Feed-Through Configurations by Means of Simple Test Apparatus on Component Level","authors":"T. Schmid, M. Wollitzer, L. Halme, B. Mund","doi":"10.1109/EMCZUR.2009.4783462","DOIUrl":"https://doi.org/10.1109/EMCZUR.2009.4783462","url":null,"abstract":"Feed-through configurations within high speed data transmission systems can cause serious electromagnetic interference (EMI) problems. A simple test method to measure the transfer impedance and shielding or screening attenuation of feed-through configurations and EMI - gaskets in well defined environments has been developed and tested with good results. Using the scattering parameters measured with a network analyzer (NWA), the transfer impedance is calculated. It is the primary and test fixture independent screening effectiveness measure and allows an estimation of the screening efficiency also within systems with different system impedances. Various feed-through shielding approaches have been evaluated and compared by the use of this method.","PeriodicalId":192851,"journal":{"name":"2009 20th International Zurich Symposium on Electromagnetic Compatibility","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127283724","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
Efficient Electrically Small Wide Band Planar Antenna for SAR Reduction 用于降低SAR的高效电小宽带平面天线
2009 20th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2009-02-13 DOI: 10.1109/EMCZUR.2009.4783442
Jung-han Kim, Hong-min Lee
{"title":"Efficient Electrically Small Wide Band Planar Antenna for SAR Reduction","authors":"Jung-han Kim, Hong-min Lee","doi":"10.1109/EMCZUR.2009.4783442","DOIUrl":"https://doi.org/10.1109/EMCZUR.2009.4783442","url":null,"abstract":"In this paper, an efficient electrically small wide band planer antenna for SAR (Specific Absorption Rate) is designed and fabricated. The proposed antenna consists of two inductive loading arms and inverted L-type monopole antenna. Also, the proposed antenna is designed to have a CPW feed structure and a superstrate layer. Two inductive loading arms are electromagnetically coupled with main monopole for the dual resonance mode of the antenna operation. The dual resonance characteristics are shown at 2.184GHz and 2.44GHz, respectively. The measured impedance bandwidth (VSWR ¿ 2) is 624 MHz (1.984~2.608 GHz). The proposed antenna has maximum gain of 2.8 dBi and radiation efficiency of 80.3 % at 2.184 GHz. With the arrangement that the proposed antenna is mounted at the front of the mobile handset cover plane, the radiated power difference between the forward and backward from the human head is about 10dBi. Moreover, disadvantage of the conventional electrically small antenna, such as narrow impedance bandwidth and radiation efficiency, are improved by simple inductive loading structure.","PeriodicalId":192851,"journal":{"name":"2009 20th International Zurich Symposium on Electromagnetic Compatibility","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122669775","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
Proposa of a specifc test methodoogy to assess the radiate immunity behavior of a data transimission from beacon to train 提出了一种评估从信标到列车的数据传输的辐射抗扰性能的测试方法
2009 20th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2009-02-13 DOI: 10.1109/EMCZUR.2009.4783496
Y. Balghiti, B. Meyniel, J. Orion, F. Maumy, E. François, P. Besnier, M. Drissi
{"title":"Proposa of a specifc test methodoogy to assess the radiate immunity behavior of a data transimission from beacon to train","authors":"Y. Balghiti, B. Meyniel, J. Orion, F. Maumy, E. François, P. Besnier, M. Drissi","doi":"10.1109/EMCZUR.2009.4783496","DOIUrl":"https://doi.org/10.1109/EMCZUR.2009.4783496","url":null,"abstract":"The method to validate in laboratory the in-band electromagnetic susceptibility of the Eurobalise system used for data transmission in railway application has not yet been standardized. This paper describes a study which aims at evaluating the radiated immunity test to electromagnetic disturbances in the 4 MHz range corresponding to the transmission carrier frequency used by the beacon for transmission. Typical disturbance signals recorded in the rolling stock environment are intended to be used as an excitation signal for this immunity test. At first, the test is developed for the whole transmission system that consists of a Beacon/antenna set. However, another objective of this work is to perform the immunity evaluation of the on board antenna alone although its operation requires the presence of a beacon in principle. These different test set up are presented in this paper as well as their performances.","PeriodicalId":192851,"journal":{"name":"2009 20th International Zurich Symposium on Electromagnetic Compatibility","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134515934","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
Narrowband interference characteristics of high-speed power line communication based on Wavelet-OFDM 基于小波ofdm的高速电力线通信窄带干扰特性研究
2009 20th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2009-02-13 DOI: 10.1109/EMCZUR.2009.4783493
K. Nakagawa, S. Hosoya, M. Tokuda, Yuji Igata
{"title":"Narrowband interference characteristics of high-speed power line communication based on Wavelet-OFDM","authors":"K. Nakagawa, S. Hosoya, M. Tokuda, Yuji Igata","doi":"10.1109/EMCZUR.2009.4783493","DOIUrl":"https://doi.org/10.1109/EMCZUR.2009.4783493","url":null,"abstract":"The interference characteristics of a PLC system using Wavelet-OFDM were measured when narrowband interference signals were impressed. The results showed that the PHYsical layer (PHY) rate at the all-frequencies band hardly decreased at all at C(Carrier)/I(Interference) of -10 dB or more, but began to decrease rapidly at C/I of -30 dB or less when interference signals were impressed in the frequency band of the PLC signals. In addition, when C/I became -60 dB, the PHY rate at the frequency corresponding to the notch band became about 10 Mbps higher than that at a frequency not corresponding to the notch band. This demonstrates that a Wavelet-OFDM PLC system has an excellent interference characteristic, on that is fully on a par with that of an FFT-OFDM PLC system.","PeriodicalId":192851,"journal":{"name":"2009 20th International Zurich Symposium on Electromagnetic Compatibility","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133933168","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
Further Validation of Spark-Resistance Formula Applied for Human ESD 人体静电放电火花电阻公式的进一步验证
2009 20th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2009-02-13 DOI: 10.1109/EMCZUR.2009.4783473
Y. Taka, O. Fujiwara
{"title":"Further Validation of Spark-Resistance Formula Applied for Human ESD","authors":"Y. Taka, O. Fujiwara","doi":"10.1109/EMCZUR.2009.4783473","DOIUrl":"https://doi.org/10.1109/EMCZUR.2009.4783473","url":null,"abstract":"Micro-gap electrostatic discharge (ESD) events due to a human with charge voltages below 1000 V cause serious malfunctions in high-tech information devices. For clarifying such a mechanism, it is indispensable to grasp the spark process of such micro-gap ESDs. For this purpose, two types of spark-resistance laws proposed by Rompe-Weizel and Toepler have often been used, which were derived from the hypotheses that spark conductivity be proportional to the internal energy and charge injected into a spark channel, respectively. However, their validity has not well been investigated. To examine which spark-resistance formula could be applied for human ESDs, with a 12-GHz digital oscilloscope, we previously measured the discharge currents through the hand-held metal piece from a charged human with respect to charged voltages of 200 V and 2000 V, and thereby derived the conductance of a spark gap to reveal that both of their hypotheses are roughly valid in the initial stage of sparks. In this study, to further validate the above spark hypotheses, we derived the discharge voltages in closed forms across a spark gap based on the spark-resistance formulae, and compared them with the estimated results from the measured discharge currents. As a result, we found that Rompe-Weizel's formula could well explain initial spark process than Toepler's one regardless of charge voltages.","PeriodicalId":192851,"journal":{"name":"2009 20th International Zurich Symposium on Electromagnetic Compatibility","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132891604","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
The Malfunction and Immunity limit of Information technology equipment under HPEM environments HPEM环境下信息技术设备的故障与抗扰度极限
2009 20th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2009-02-13 DOI: 10.1109/EMCZUR.2009.4783392
H. Sekiguchi, S. Seto, I. Minematsu
{"title":"The Malfunction and Immunity limit of Information technology equipment under HPEM environments","authors":"H. Sekiguchi, S. Seto, I. Minematsu","doi":"10.1109/EMCZUR.2009.4783392","DOIUrl":"https://doi.org/10.1109/EMCZUR.2009.4783392","url":null,"abstract":"This paper presents the investigation results of the relation with the malfunction and the immunity limit of an Ethernet hub that is put in the high-power electromagnetic (HPEM) environments. Several HPEM environments are built to induce the malfunction of the Ethernet hub. First, the radiated HPEM environments are built using a transverse electromagnetic (TEM) cell. Next, the conducted HPEM environment was built using a bulk current injection (BCI) method. From these test experiments, it is discussed on the relation with the malfunction and the immunity limit of the Ethernet hub.","PeriodicalId":192851,"journal":{"name":"2009 20th International Zurich Symposium on Electromagnetic Compatibility","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133648208","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
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