EMC Society news and events!
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ANNOUNCING TWO EMC SOCIETY INDUSTRY SPONSORED WEBINARS
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See details below for the technical programs and speaker bios for these TWO webinars by the experts at: |
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WEDNESDAY, JUNE 16, 2021: 8:00 - 9:00 AM (PDT)
Optimizing EMC and RF Test Chamber Design and Performance
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SPEAKER:
Zhong Chen
Director of RF Engineering, ETS-Lindgren, Cedar Park, TX
Abstract: An EMC test chamber is a considerable investment impacted by many factors, a few of which include performance, space limitations, features, and budget. Most often the budget drives a series of tradeoffs between the size of your quiet zone, partial absorber linings, and performance. One rarely encounters a “standard” chamber, thus some customization is inevitable. How do you lower the risk of a chamber not meeting your expectations? In this presentation, we provide an overview of the EMC chamber design process and highlight the importance of an accurate EMC chamber simulation tool in meeting challenging design requirements. Case studies of four very different chambers will be shown, including predicted and validated performance data. Participants will gain a better appreciation of the technical challenges, limitations, speed, accuracy, and tradeoffs among the different simulation techniques. The presentation will also benefit those who wish to refurbish an existing chamber, those who have a chamber that struggles to meet site requirements and want to diagnose/correct the problem, and those who want to understand how a chamber impacts measurement uncertainties.
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SPEAKER BIOGRAPHY:
Zhong Chen is the Director of RF Engineering with ETS-Lindgren, located in Cedar Park, Texas. He has over 25 years of experience in RF testing, anechoic chamber design, as well as antenna and EMC field probe design and measurements. He is currently a member of the Antenna Measurement Techniques Association (AMTA) Board of Directors. Mr. Chen is the Chair of Subcommittee 1 of ANSI ASC C63 which is responsible for EMC antenna calibration and test site validation standards. He is also chair of the IEEE Standard 1309 committee responsible for developing calibration standards for field probes, and IEEE Standard 1128 for absorber measurements. He has served as a Distinguished Lecturer for the IEEE EMC Society. His research interests include measurement uncertainty, time domain measurements, and development of novel RF absorber materials. Mr. Chen received his M.S.E.E. degree in electromagnetics from the Ohio State University at Columbus
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ORIGINALLY BROADCAST ON WEDNESDAY, MAY 26, 2021
8:00 - 9:00 AM (PDT)
Emerging Millimeter Wave Radiated Emissions Test Methods: Lessons Learned
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SPEAKER:
Ross Carlton
Chair, ANSI C63 Subcommittee 3 on International Standardization
EMC Test Systems Engineer, ETS-Lindgren, Cedar Park, Texas
Abstract: While mmWave communication technology has been used extensively for decades, this was largely confined to government or military applications. Today, mmWave devices are increasingly prevalent in commercial and consumer applications with the proliferation of wireless devices. As EMC engineers, we are familiar with the significant problems RF interference may cause due to poorly designed and/or tested products. How are these new 5G devices operating at mmWave frequencies regulated to ensure performance as intended? In this presentation, we will begin with a review of the emerging radiated emissions test methods for mmWave devices intended for use in the United States and governed by the requirements of the FCC’s Part 30 of the Code of Federal Regulations. These test methods are included in the ANSI C63.26 standard for licensed transmitters to document compliance with FCC requirements. The standard outlines test methods for measurement of radiated and conducted emissions, RF power, out-of-band emissions, frequency stability, and other regulatory requirements for a variety of devices. Since its publication in 2015, mmWave technology has advanced significantly. The presentation includes a discussion of the currently available methods, including their benefits and constraints. Proposed changes to the next edition of C63.26 currently underway will be reviewed. Time permitting, an experiment will be performed to characterize and validate aspects of the measurement methods.
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SPEAKER BIOGRAPHY:
Ross Carlton (SM’03) is an EMC Test Systems Engineer with ETS-Lindgren located in Cedar Park, Texas. He received the B.Sc. degree in electrical engineering from Texas A&M University, College Station, Texas, in 1985. Since that time, Mr. Carlton has been engaged in the field of electromagnetic compatibility (EMC) where he has worked in the military, aerospace, and commercial electronics industries to ensure the EMC of electronic products ranging from integrated circuits to battleships. His primary interests are EMC standards and test methods for intentional and unintentional radiators. As part of the EMC Test Systems group, he designs and delivers custom EMC test systems to implement standardized and customer-specific test methodologies. Mr. Carlton is a member of the ASC C63® Committee where he participates in Subcommittees 4 and 5, which focus on Immunity test methods and Wireless test methods, respectively. He also chairs Subcommittee 3 on International Standardization. Mr. Carlton is an iNARTE certified EMC Engineer, an iNARTE certified Master EMC Design Engineer, Secretary of the EMC Society’s Standards Development & Education Committee (SDECom), and a Member of the Board of Directors of the IEEE EMC Society.
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