2016 IEEE International Symposium on Electromagnetic Compatibility (EMC)最新文献_第3页

Radio-frequency interference estimation by reciprocity theorem with noise source characterized by Huygens's equivalent model 基于惠更斯等效模型噪声源互易定理的射频干扰估计

2016 IEEE International Symposium on Electromagnetic Compatibility (EMC) Pub Date : 2016-07-25 DOI: 10.1109/ISEMC.2016.7571673

L. Li, Jingnan Pan, C. Hwang, Gyuyeong Cho, Hark-Byeong Park, Yaojiang Zhang, J. Fan

{"title":"Radio-frequency interference estimation by reciprocity theorem with noise source characterized by Huygens's equivalent model","authors":"L. Li, Jingnan Pan, C. Hwang, Gyuyeong Cho, Hark-Byeong Park, Yaojiang Zhang, J. Fan","doi":"10.1109/ISEMC.2016.7571673","DOIUrl":"https://doi.org/10.1109/ISEMC.2016.7571673","url":null,"abstract":"Noise coupling from a working IC to the neighboring victim antenna is estimated by decomposition based reciprocity theorem. The overall problem is decomposed into two parts. In the first part, the IC is turned on and the victim antenna is turned off, which is defined as forward problem. The second part is called reverse problem in which case the victim antenna is excited while the IC is turned off. An imaginary Huygens's box is introduced above the victim antenna for evaluating the coupled power from noise source to the victim RF antenna. The noise source is characterized by Huygens's equivalent source in the forward problem, and the victim antenna is modeled in full-wave simulation tool. With tangential E and H fields obtained in both forward problem and reverse problem, the coupled power can be estimated by numerical calculation of reciprocity theorem. The method by using Huygens's equivalent source is first validated by simulation in the forward problem. Later a test board with an IC and patch antenna is further measured to validate the overall methodology.","PeriodicalId":326016,"journal":{"name":"2016 IEEE International Symposium on Electromagnetic Compatibility (EMC)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127301638","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

Pitfalls in measuring discontinuous disturbances with latest click analysers 用最新的点击分析仪测量不连续干扰的陷阱

2016 IEEE International Symposium on Electromagnetic Compatibility (EMC) Pub Date : 2016-07-25 DOI: 10.1109/ISEMC.2016.7571563

Mario Monti, Elena Puri, Massimo Monti

{"title":"Pitfalls in measuring discontinuous disturbances with latest click analysers","authors":"Mario Monti, Elena Puri, Massimo Monti","doi":"10.1109/ISEMC.2016.7571563","DOIUrl":"https://doi.org/10.1109/ISEMC.2016.7571563","url":null,"abstract":"The recent advancing in click analyser technology aims at reducing costs and time required to perform a full CISPR 14-1 compliant click measurement. The two relevant approaches to achieve costs and time reductions are, respectively, the use of Fast Fourier Transform (FFT) EMI receivers and performing the threshold calculation and actual measurement in a single run (single-run systems). However, there are some critical aspects related to these approaches. (i) The reduced dynamic range, emphasized in FFT receivers and single-run systems, can lead to underestimated measurements. (ii) The partial consideration of the disturbance (i.e., only its amplitude but not its shape in time) can make single-run systems susceptible to an erroneous calculation of clicks. Still, both approaches can be pursued with certain precautions: a specific circuitry to notify an overload condition of click analysers in general and the recording of both IF and quasi-peak channels in single-run systems. By thoroughly discussing the two issues and the related proposed precautions, we undermine popular claims of click analyser manufacturers and reconsider common beliefs about click analysers. We report on important technical aspects and scarcely known details, supporting our claims with simple lab tests and examples.","PeriodicalId":326016,"journal":{"name":"2016 IEEE International Symposium on Electromagnetic Compatibility (EMC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115075873","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

Effect of power noise coupling between power via and signal via and its relationship with distance 功率通孔与信号通孔的功率噪声耦合效应及其与距离的关系

2016 IEEE International Symposium on Electromagnetic Compatibility (EMC) Pub Date : 2016-07-25 DOI: 10.1109/ISEMC.2016.7571606

Hank Lin, B. Tseng, Jackson Yen

引用次数: 7

Going the distance: Aircraft and lightning, how far is far enough? 远行:飞机和闪电，多远才算够远?

2016 IEEE International Symposium on Electromagnetic Compatibility (EMC) Pub Date : 2016-07-25 DOI: 10.1109/ISEMC.2016.7571714

Christopher Fuller, F. Heather

{"title":"Going the distance: Aircraft and lightning, how far is far enough?","authors":"Christopher Fuller, F. Heather","doi":"10.1109/ISEMC.2016.7571714","DOIUrl":"https://doi.org/10.1109/ISEMC.2016.7571714","url":null,"abstract":"With the limited data that is available this document serves the purpose to illustrate why aircraft should remain 25 nautical miles (NM) away from thunderstorms. There has been no extensive research on aircraft flying in or near thunderstorms since the 1980s, so data presented is from just normal naturally occurring lightning strikes. The studies show that 95-99% of all lightning strikes are within a 10 NM range; however, while uncommon, there are lightning strikes that can range from 20 to 30 NM [1][2]. Most aircraft agencies stress a 20 to 25 NM distance from thunderstorms. Finally in this paper we take a look at probability and risk estimations for an aircraft being struck by lightning and at what distances from storms is an acceptable level of risk reached. From the risk analysis of the two test cases we can see there are instances that indicate an acceptable level of risk within 25 NM, however it is not until then that a satisfactory level is reached across the board. Because of the studies and the risk assessment provided it seems reasonable why most pilots and aircraft agencies stress a 20 to 25 NM limit for avoiding thunderstorms.","PeriodicalId":326016,"journal":{"name":"2016 IEEE International Symposium on Electromagnetic Compatibility (EMC)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116403989","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

Power integrity with voltage ripple spectrum decomposition for physics-based design 基于物理设计的电源完整性与电压纹波谱分解

2016 IEEE International Symposium on Electromagnetic Compatibility (EMC) Pub Date : 2016-07-25 DOI: 10.1109/ISEMC.2016.7571666

Chenxi Huang, Biyao Zhao, K. Shringarpure, S. Bai, X. Fang, T. Makharashvili, Hanqin Ye, Y. S. Cao, M. Cracraft, M. Cocchini, S. Connor, Q. Gaumer, S. Scearce, B. Archambeault, B. Achkir, E. Li, Lijun Jiang, A. Ruehli, J. Fan, J. Drewniak

引用次数: 4

Noise analysis of on-chip flexing crossbars with a geometric model 基于几何模型的片上挠性横杆噪声分析

2016 IEEE International Symposium on Electromagnetic Compatibility (EMC) Pub Date : 2016-07-25 DOI: 10.1109/ISEMC.2016.7571695

Serta Erdemir, A. Oruç

引用次数: 0

Investigation on improvements in lightning retest criteria for spacecraft 航天器雷电复测标准改进研究

2016 IEEE International Symposium on Electromagnetic Compatibility (EMC) Pub Date : 2016-07-25 DOI: 10.1109/ISEMC.2016.7571739

Alex Terseck, D. Trout

引用次数: 2

Common mode current prediction from a power converter with attached cables based on a terminal equivalent circuit model 基于终端等效电路模型的带电缆电源变换器共模电流预测

2016 IEEE International Symposium on Electromagnetic Compatibility (EMC) Pub Date : 2016-07-25 DOI: 10.1109/ISEMC.2016.7571766

Satyajeet Shinde, A. Patnaik, Tamar Makharashvilli, K. Masuda, D. Pommerenke

引用次数: 4

Extracting characteristic impedance of a transmission line referenced to a meshed ground plane 根据网格化地平面提取传输线的特征阻抗

2016 IEEE International Symposium on Electromagnetic Compatibility (EMC) Pub Date : 2016-07-25 DOI: 10.1109/ISEMC.2016.7571725

Jiayi He, C. Hwang, Jingnan Pan, Gyuyeong Cho, Bumhee Bae, Hark-Byeong Park, J. Fan

引用次数: 13

On-site, quick and cost-effective techniques for improving the performance of EMI filters by using conducting bands 现场，快速和成本效益的技术，提高EMI滤波器的性能，通过使用导电带

2016 IEEE International Symposium on Electromagnetic Compatibility (EMC) Pub Date : 2016-07-25 DOI: 10.1109/ISEMC.2016.7571679

J. Bernal, M. Freire

{"title":"On-site, quick and cost-effective techniques for improving the performance of EMI filters by using conducting bands","authors":"J. Bernal, M. Freire","doi":"10.1109/ISEMC.2016.7571679","DOIUrl":"https://doi.org/10.1109/ISEMC.2016.7571679","url":null,"abstract":"In this work we describe a simple and effective set of techniques to decrease the parasitic effects that undermine the performance of EMI filters at high frequencies. These techniques involve the use of bands of copper tape conveniently placed around the components of the filter. These techniques are practically cost-free and can be easily and quickly implemented on-site during pre-compliance tests to provide an increase of the attenuation of the filter at high frequencies. In some cases this can make it possible to avoid a re-design of the filter or the device under test. Moreover, these techniques can be used to readily determine whether a noise is of common mode or differential mode nature without altering the measuring setup, thus helping to speed up the re-design of the EMI filter if required and to avoid overdesign. We have constructed and measured several low pass filters mounting typical polyproyilene (PP) film capacitors and/or common-mode chokes to show the effectiveness of the proposed techniques. We obtain an equivalent circuit model that provides a physical explanation of the reduction of the parasitic inductance of capacitors. Also, we offer an explanation of the improvement achieved for the rejection of the common mode of chokes. Our results demonstrate that increases in filter attenuation at high frequencies go from approximately 3-4dB for simple shunt-capacitor filter to 10-15dB for a typical EMI filter.","PeriodicalId":326016,"journal":{"name":"2016 IEEE International Symposium on Electromagnetic Compatibility (EMC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121779661","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