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[] TECHNICAL PROGRAM This program is dedicated to the memory of Omar Zubi, Boeing's longtime EMC Lab Manager, who passed away suddenly on January 31, 2026. EMC Challenges for ‘New Space’ Small Satellite Development By Russell Carroll, EMI/EMC Consulting Engineer, EMI Sleuth, El Segundo, CA, USA Abstract: This presentation discusses EMC challenges seen by engineers in the ‘new space’ world of small satellite development. These challenges include non-standardized launch vehicle and host interface requirements, unspecified lightning protection requirements, and schedule constraints on EMC testing and development. Technical challenges include power and signal isolation, crosstalk from long pigtails in wire harnesses, limited physical space for filters and shielding, and large apertures in the vehicle faraday cage. Speaker Biography: Russell Carroll is a consulting engineer with extensive experience in the analysis, design, and testing of electromagnetic effects on units and systems including space satellites and industrial electronics. His research is focused on developing useful analysis tools and methods for unit and system level EMC analysis. Mr. Carroll is a registered Professional Engineer and an iNARTE certified EMC Engineer. He received the B.S. and M.S. degrees in electrical engineering from the University of Alaska Fairbanks in 2013 and 2014. He may be reached at russell@emisleuth.com. CISPR and ANSC C63® Overview on Site Validation Measurements from 18 GHz to 40 GHz - Latest Advances in EMC Test Site Evaluation Using Advanced Antenna Measurement Techniques By Zhong Chen, Chief Engineer, ETS-Lindgren, Cedar Park, Texas, USA Abstract: This presentation introduces a novel approach for EMC chamber validation beyond 18 GHz, currently under consideration in ANSI C63 and CISPR standards. By integrating Cylindrical Mode Filtered Site Voltage Standing Wave Ratio (CMF SVSWR) with Compressed Sensing (CS), we address inherent challenges in traditional SVSWR methods, such as inconsistency and slow data acquisition. CMF SVSWR utilizes circular path measurements and mode domain post-processing to discern antenna and chamber reflections, crucial for comprehensive VSWR analysis. Compressed Sensing, a data-driven machine learning technique, exploits signal sparsity to reconstruct data from fewer randomly sampled measurement points, thereby reducing test times and eliminating the need for precise turntable positioning. Speaker Biography: Zhong Chen is Chief Engineer at ETS-Lindgren, located in Cedar Park, Texas. He has more than 25 years of experience in RF testing, anechoic chamber design, as well as EMC antenna and field probe design and measurements. He is an active member of the ANSC C63® committee currently serving as Vice-Chair and is the immediate past Chair of Subcommittee 1 which is responsible for the antenna calibration (ANSI C63.5) and chamber/test site validation standards (ANSI C63.4 and the ANSI C63.25 series). Mr. Chen is chair of the IEEE Standard 1309 committee responsible for developing calibration standards for field probes, and IEEE Standard 1128 for absorber evaluation. He is a former member of the IEEE EMC Society Board of Governors and the Antenna Measurement Techniques Association (AMTA) Board of Directors. He is a past Distinguished Lecturer for the EMC Society and is recognized as an AMTA Fellow. His research interests include measurement uncertainty, time domain measurements for site validation and antenna calibration, and development of novel RF absorber materials. Several papers authored and co-authored by Mr. Chen have received best paper recognition at global conferences. Zhong Chen received his M.S.E.E. degree in Electromagnetics from the Ohio State University at Columbus. He may be reached at zhong.chen@ets-lindgren.com. EMC Lab Tour and Demo Overview By Dennis Lewis, Technical Fellow, The Boeing Company, and Zhong Chen, ETS-Lindgren Abstract: We will demonstrate how data post-processing can be used to extract antenna and chamber parameters. The first demo highlights time-domain techniques for evaluating absorber performance in anechoic chambers. In aerospace EMC testing, measurements are typically performed per MIL-STD 461, which requires only 10 dB attenuation above 250 MHz—allowing chambers to remain relatively reflective and without system-level validation. Using time-gated antenna reflection measurements, we show a practical method to verify and quantify actual chamber performance. If time permits, we will also demonstrate the Cylindrical Mode Filtered (CMF) technique. This method measures the antenna pattern with an intentional offset (e.g., placing the antenna at the edge of the turntable). The complex S21 versus angle at each frequency is transformed into the spectral domain, where filtering removes chamber contributions mathematically, producing a “clean” antenna pattern even in a nonideal environment. For site validation, standing-wave ripples are obtained by comparing the original chamber pattern to the filtered result. The demo will cover the full measurement workflow, including real-time post-processing. The CMF SVSWR technique is under consideration in the draft ANSI C63.25.3 by ANSC C63 and in CISPR 16 site validation standards for EMC test sites from 18 GHz to 40 GHz. MANY THANKS TO OUR LUNCH SPONSOR ROHDE & SCHWARZ!! Agenda: 1:00 pm - Registration Check-In and Complimentary Lunch Courtesy of Rohde & Schwarz 1:40 pm - Welcome from Seattle EMC Chapter Chair, Janet O'Neil with ETS-Lindgren and Seattle AP/ED/MTT Chapter Chair, Dennis Lewis with Boeing 1:45 pm - EMC Challenges for ‘New Space’ Small Satellite Development By Russell Carroll, EMI/EMC Consulting Engineer, EMI Sleuth, El Segundo, CA, USA 2:30 pm - CISPR and ANSC C63® Overview on Site Validation Measurements from 18 GHz to 40 GHz - Latest Advances in EMC Test Site Evaluation Using Advanced Antenna Measurement Techniques By Zhong Chen, Chief Engineer, ETS-Lindgren, Cedar Park, Texas, USA 3:30 pm - Refreshment Break 3:50 pm - Overview of Boeing EMC Lab and Demo Set Up by Dennis Lewis, Technical Fellow with Boeing and Zhong Chen with ETS-Lindgren 4:20 pm - Technical tour of the Boeing EMC Lab with LIVE demo 5:00 pm - Adjourn Bldg: 2-122, Boeing, 7701 14th Ave Soutn, Seattle, Washington, United States, 98108
