The IEEE Seattle EMC Chapter proudly presents: Lunch & Learn - A Hands-On Event Addressing Fundamental to Advanced EMC Design and Test Topics – Complemented by Live Demos
This is a free meeting open to IEEE members and guests, but you must register IN ADVANCE
no later than Friday, September 13, to ensure adequate seating and catering - Click here to register on line
Presentation 1: Automated Design Rule Check for EMC Design
By Federico Centola, Lead EMC Designer, Google, Mountain View, California
The EMC design of PCBs often requires board reviews and inspections to insure that EMC guidelines are followed and that there are no major EMC design violations. This presentation discusses the utility of Automated Design Rule Checking (DRC) tools for EMC, possible ways of automating the process and the importance of having customized rules and design parameters.
Presentation 2: Utilizing Reverberation Chambers as a Versatile Test Environment for Assessing the Performance of Components and Systems
By Dennis Lewis, Technical Fellow, Boeing, Seattle, Washington
Electromagnetic reverberation chambers have been used for many years by the Electromagnetic Compatibility (EMC) community to measure the susceptibility and emissions for various electronic components and systems. This presentation describes how statistical processes were used to reduce the uncertainty of these chambers to a level necessary for precision metrology applications.
Date and Time
- Date: 18 Sep 2019
- Time: 10:30 AM to 03:00 PM
- All times are US/Pacific
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- CKC Labs
- 22116 23rd Drive SE
- Bothell, Washington
- United States 98021
- Click here for Map
Federico Centola of Google
Automated Design Rule Check for EMC Design
Abstract: The EMC design of PCBs often requires board reviews and inspections to insure that EMC guidelines are followed and that are no major EMC design violations. This review process is very often a manual process, time consuming and prone to errors especially when large PCB with multiple layers have to be examined. Automated Design Rule Checking (DRC) tools have been available for years but are not always used because the set-up time may also be very time consuming and because the results usually contain many non-critical violations. This presentation discusses the utility of DRC for EMC, possible ways of automating the process and the importance of having customized rules and design parameters.
Federico Pio Centola received his Laurea degree in electrical engineering from the University of L'Aquila, Italy and the M.S. degree in electrical engineering in 2003 from the Missouri Science and Technology University (formerly known as University of Missouri Rolla). After his graduation, he worked for five years as Senior Application Engineer and Associate Line of Business Manager for Flomerics, a company that specialized in Electromagnetic numerical simulations using the 3D Transmission Line Matrix method. For nine years he was with Apple as a senior EM Technologist. In the technology group, he developed design methodologies and tools for the Apple EMC and EM Design groups. He worked on iPhones, iPads, Apple Watches and different iMac products. Since 2017, he has joined the Platform group at Google where he works as the Lead EMC Designer. Federico Centola has authored or co-authored a number of papers and patents. Numerous times he has been an invited speaker at IEEE conferences and he has been serving for many years as a reviewer for the IEEE Transactions on EMC.
Dennis Lewis of Boeing
Utilizing Reverberation Chambers as a Versatile Test Environment for Assessing the Performance of Components and Systems
Abstract: Electromagnetic reverberation chambers have been used for many years by the Electromagnetic Compatibility (EMC) community to measure the susceptibility and emissions for various electronic components and systems. This presentation describes how statistical processes were used to reduce the uncertainty of these chambers to a level necessary for precision metrology applications. These processes were applied to the calibration of electromagnetic field probes and the assessment of antenna efficiencies. A brief comparison of traditional calibration methods employing transverse electromagnetic (TEM) cells and anechoic chambers to the new statistical reverberant environment will be shown. The presentation also goes on to explain how these techniques were later applied to a wide variety of aircraft measurements. A technique, which utilizes two side-by-side reverberation chambers sharing a common wall with an arbitrary shaped aperture, useful for the assessment of component shielding, will be discussed. Utilizing this same approach, it is possible to assess the shielding of large structures such as commercial aircraft. These aircraft shielding measurements are necessary for High Intensity Radiated Field Susceptibility (HIRF) certifications. With the proliferation of wireless devices, it is important to understand how they behave in complex electromagnetic environments and how they interact with other devices and systems in which they are collocated. Aircraft environments have been shown to behave similarly to reverberation chambers and therefore these techniques can be employed to study propagation environments and system interactions. This presentation will give examples of how these techniques were employed to measure bulk absorption used to simulate passenger loading of aircraft, field mapping which is useful for the evaluation of signal coverage and channel interference as well as signal propagation characteristics.
Dennis Lewis received his BS EE degree with honors from Henry Cogswell College and his MS degree in Physics from the University of Washington. He has worked at Boeing for 29 years and is recognized as a Technical Fellow. He currently has leadership and technical responsibility for the primary RF, Microwave and Antenna Metrology labs. Dennis holds eight patents and is the recipient of the 2013 and 2015 Boeing Special Invention Award. He is a member of the IEEE and several of its technical societies including the Microwave Theory and Techniques Society (MTT-S), the Antennas and Propagation Society and the Electromagnetic Compatibility (EMC) Society. He serves as a Board Member and is a past Distinguished Lecturer for the EMC Society. He is a Senior Member, serves as Vice President on the Board of Directors for the Antenna Measurements Techniques Association (AMTA), and chaired its annual symposium in 2012. Dennis is a part time faculty member teaching a course on Measurement Science at North Seattle College and is chair of the Technical Advisory Committee. His current technical interests include aerospace applications of reverberation chamber test techniques as well as microwave measurement systems and uncertainties.
10:30 am – 11:00 am Registration
11:00 am – 11:15 am Welcome and Introductions
11:15 am – 12:15 pm First presentation by Federico Centola of Google – EMC Design
12:15 pm – 1:15 pm Lunch and CKC Labs Tour for those interested in seeing the new additions
1:15 pm – 2:30 pm Second presentation by Dennis Lewis of Boeing – EMC Test
2:30 pm – 3:00 pm Live demonstrations of testing in a reverb chamber