2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI)最新文献_第5页

Effect of Measurement Probe Configuration in Undermoded Nested Cavity Tests 欠模套腔试验中测量探头配置的影响

2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI) Pub Date : 2020-07-01 DOI: 10.1109/EMCSI38923.2020.9191537

J. West, M. Bahadorzadeh, C. Bunting

引用次数: 1

Magnetic Shielding Concepts for Reaction Wheel Assembly on NASA Europa Clipper Spacecraft NASA欧罗巴快船反作用轮组件的磁屏蔽概念

2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI) Pub Date : 2020-07-01 DOI: 10.1109/EMCSI38923.2020.9191616

Katherine Dang, P. Narvaez, Joshua Berman, Kevin Pham, Ashley Curiel

引用次数: 5

A Study of Coverlay Coated Microstrip Lines for Crosstalk Reduction in DDR5 覆盖微带线在DDR5串扰抑制中的应用研究

2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI) Pub Date : 2020-07-01 DOI: 10.1109/EMCSI38923.2020.9191683

Qiangming Cai, Yuyu Zhu, Runren Zhang, Yinglei Ren, X. Ye, J. Fan

{"title":"A Study of Coverlay Coated Microstrip Lines for Crosstalk Reduction in DDR5","authors":"Qiangming Cai, Yuyu Zhu, Runren Zhang, Yinglei Ren, X. Ye, J. Fan","doi":"10.1109/EMCSI38923.2020.9191683","DOIUrl":"https://doi.org/10.1109/EMCSI38923.2020.9191683","url":null,"abstract":"Crosstalk becomes a serious problem in microstrip design of printed circuit boards (PCBs) in DDR5. In high-density and high-speed PCBs, widening space or putting shielding between traces to mitigate crosstalk noise may become less effective, because of the limited space. This paper presents a simple and efficient crosstalk reduction approach by using coverlay coated microstrip lines. This coverlay is available in a variety of film and adhesive thicknesses, which is commonly used materials for the resistance welding transform in PCB production. Based on the simulated S-parameters, the FEXT keeps under −40 dB from dc to 16.0 GHz, and more than 24 dB reduction for FEXT at 3.2 GHz can be achieved by using the coverlay technology, in comparison with that of the initial microstrip lines. The measured results show that the peak FEXT voltage with coverlay can be decreased by 83% of that without coverlay. Moreover, when the experimental results are compared with the simulated results, good agreement can be observed, demonstrating the validity of the proposed design.","PeriodicalId":189322,"journal":{"name":"2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124042775","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

Design Approach for HPEM Mitigation for Electrical Substations 变电站HPEM缓解设计方法

2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI) Pub Date : 2020-07-01 DOI: 10.1109/emcsi38923.2020.9191535

Eric Easton, Kevin D. Bryant, W. Radasky

引用次数: 2

Electromagnetic Compatibility Test and Analysis Campaign of NASA's Mars 2020 Rover 美国宇航局火星2020漫游者电磁兼容性测试和分析活动

2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI) Pub Date : 2020-07-01 DOI: 10.1109/EMCSI38923.2020.9191471

Edward Gonzales, Nelson Huang

{"title":"Electromagnetic Compatibility Test and Analysis Campaign of NASA's Mars 2020 Rover","authors":"Edward Gonzales, Nelson Huang","doi":"10.1109/EMCSI38923.2020.9191471","DOIUrl":"https://doi.org/10.1109/EMCSI38923.2020.9191471","url":null,"abstract":"NASA's Mars 2020 Perseverance Rover—with a launch window opening July 2020, and landing expected February 2021—has mission objectives to look for evidence of habitability, seek biosignatures of past life, collect and cache samples for possible future return to Earth, and prepare for future human missions to Mars. The Rover platform is similar to the previous Mars Science Laboratory (MSL) “Curiosity” rover that landed in 2012 but contains a new suite of scientific instruments and upgrades to existing functionality: seven new and/or upgraded scientific payloads, an upgraded arm and sampling system, and a Helicopter demonstration. These changes—along with new efficiency goals to operate more Rover subsystems concurrently and thus collect more science-presented new electromagnetic compatibility (EMC) challenges. In this paper, we will describe the campaign to ensure Mars 2020 mission success from an electromagnetic environment perspective: 1) confirming existing MSL heritage subsystems and EMC requirements were compatible with the new Mars 2020 mission objectives, 2) engaging with engineers and scientists early in the project to identify and evaluate risks before hardware assembly and performing ambitious risk reduction tests, 3) undertaking a comprehensive subsystem qualification test program based on tailored MIL-STD-461F requirements, occasionally leading to redesign, 4) synthesizing the data collected to perform detailed analyses toward the goal of making risk-informed decisions at a system level. The spacecraft successfully completed all three planned system level tests, demonstrating self-compatibility with minimal impact to operations from electromagnetic interference in all mission phases.","PeriodicalId":189322,"journal":{"name":"2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128956337","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

The Impact Of Solar Panel Cutouts On The Electromagnetic Interference From Solar Panels For Space Vehicles 空间飞行器用太阳能板的电磁干扰研究

2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI) Pub Date : 2020-07-01 DOI: 10.1109/EMCSI38923.2020.9191487

D. Norte

{"title":"The Impact Of Solar Panel Cutouts On The Electromagnetic Interference From Solar Panels For Space Vehicles","authors":"D. Norte","doi":"10.1109/EMCSI38923.2020.9191487","DOIUrl":"https://doi.org/10.1109/EMCSI38923.2020.9191487","url":null,"abstract":"Conventional solar panels for industrial applications are comprised of a given number of rows and columns of solar cells such that the overall array of solar cells forms a balanced rectangular pattern. In space applications of solar panels, it is sometimes necessary to modify this rectangular pattern such that one or more corners of the panel are bevelled or chamfered in order to prevent the obstruction of the field of view from an on-board antenna, for example. In space applications, the bevel can be rather large and can cause a significant imbalance of the distribution of the solar cells. This paper attempts to characterize the DC magnetic field, as well as the RF electric and magnetic fields, for a conventional space vehicle solar panel that is about 2.7 meters by 2.2 meters in its dimensions, and in which one corner of the panel is bevelled or chamfered. The solar panel is characterized with 17 strings of solar cells, in which each string is comprised of 38 solar cells. Each cell generates 1.0A of current, and the string voltage is about 40V. Each cell is comprised of 100 “fingers” that collect the current from the cell. It is determined in this paper that bevelled corners notably affect the electromagnetic interference from the panel. It is also shown in this paper how a circularly rotating payload, such as a radiometer, can be notably affected by the DC magnetic field from a bevelled panel, since the rotating payload effectively “sees” a very low frequency AC magnetic field due to its rotation within the DC magnetic field.","PeriodicalId":189322,"journal":{"name":"2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116683654","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

Selective Digital Active EMI filtering using Resonant Controller 使用谐振控制器的选择性数字有源EMI滤波

2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI) Pub Date : 2020-07-01 DOI: 10.1109/EMCSI38923.2020.9191623

Hongwu Peng, B. Narayanasamy, A. Emon, Zhao Yuan, Rongxuan Zhang, F. Luo

引用次数: 4

Cable Harness Design For Aerospace Platforms 航空航天平台电缆线束设计

2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI) Pub Date : 2020-07-01 DOI: 10.1109/EMCSI38923.2020.9191452

R. Scully

引用次数: 0

Probability Distribution Approach of EMI Filter Performance for Photovoltaic Applications 光伏应用中电磁干扰滤波器性能的概率分布方法

2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI) Pub Date : 2020-07-01 DOI: 10.1109/EMCSI38923.2020.9191570

Duc-Thanh Do, H. Hirsch

引用次数: 2

Noise Coupling Mechanism Analysis and Mitigation Method for Receiver Sensitivity Improvement in an Optical QSFP Transceiver Module QSFP光模块噪声耦合机理分析及提高接收灵敏度的抑制方法

2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI) Pub Date : 2020-07-01 DOI: 10.1109/EMCSI38923.2020.9191466

Yuandong Guo, Shuai Jin, Xinglin Sun, J. Fan

{"title":"Noise Coupling Mechanism Analysis and Mitigation Method for Receiver Sensitivity Improvement in an Optical QSFP Transceiver Module","authors":"Yuandong Guo, Shuai Jin, Xinglin Sun, J. Fan","doi":"10.1109/EMCSI38923.2020.9191466","DOIUrl":"https://doi.org/10.1109/EMCSI38923.2020.9191466","url":null,"abstract":"The increasingly growth of the traffic in data centers demands for high-speed data transition and high bandwidth density. Optical communication is a promising way for the propagation of high-speed signals with less distortions. The quad small form-factor pluggable (QSFP) transceiver module is an essential component converting an electrical signal into an optical signal for point-to-point data transition. Considerable attentions have been paid to the signal integrity (SI) optimization for the optical QSFP transceiver modules with different data rates, where the receiver sensitivity is generally considered to be critical. In this paper, the receiver sensitivity problem of a typical QSFP transceiver module with 10 Gbit/s data rate is studied. It is the first time to demonstrate that the receiver sensitivity improvement is not only related with the SI design, but also connected with the electromagnetic interference (EMI) mitigation inside the DUT. The convential simulation model used for SI analysis with important metal configurations excluded is limited in the ability to identify the coupling between the radiating structures. It is found that the EMI noise induced by the unbalanced PCB routing and the interconnect between the PCB and flexible printed circuit (FPC) has significant contribution to the total noise at the receiver end. The generation of the antenna-mode current is verified and further studied using the full wave simulations. The mitigation method is proposed and confirmed through the measurements to improve the receiver sensitivity.","PeriodicalId":189322,"journal":{"name":"2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126912577","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