Rocky Mountain Chapter EMC SocietyA special thanks to our sponsors
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Our last meeting was.. a double header Date : February 24th 2005 Presentation #1 : Hitchhiker's Guide to Emissions Testing: Part 4 Download the presentation here Presenter: Todd Seeley - Principal Engineer, IALabs, Boulder Colorado (Bio) What we saw: Engineers new to the Electromagnetic Compatibility discipline are often
confused by the various options available for testing the emissions from
electronic products. How does one pick between the testing options -
OATS (Open Area Test Site)/GTEM/Semi-Anechoic Chamber/Fully Anechoic chamber?
This presentation gave a top level understanding of Normalized
Site Attenuation and how it affects testing results in comparing multiple
emissions test sites.
Presentation #2 : High-Speed Measurements - a Tutorial Download the presentation here Download the transmission line training software here
What we saw: This tutorial is designed to provide engineers with a practical framework for understanding and performing high-speed measurements. The talk started with a brief introduction to ideal (lossless) and lossy transmission lines, interconnects, and the use of time-domain reflectometry (TDR) and vector network analysis (VNA) techniques for high-speed measurements. Bandwidth and rise time considerations were addressed, followed by a detailed discussion of signal integrity considerations (ground bounce, power bus decoupling, dispersion loss, AC loss, differential pairs, common/differential modes, even/odd modes). The talk continued with a discussion of board-level interconnect components (vias, connectors, sockets, probe tips, packages, multichip modules, PCB traces, single/differential runs) and concluded with high-speed interconnect modeling considerations Todd Seeley: Todd grew up in the Denver area and
currently resides in Westminster. His extensive background includes the design
of hybrid, TCXO, VCXO, and OCXO open crystal oscillators and RFID systems
before he was tagged with a compliance/regulatory role. After being "tagged,"
Todd gradually expanded his expertise and knowledge to eventually support the
Compliance and Product Integrity needs for 11 different projects
simultaneously in 6 divisions within a large corporation to include
requirements research, EMC/EMI/Safety design review and mitigation,
environmental and reliability test, radio and telecom compliance, project
planning and execution, policy implementation and international regulatory
approvals throughout the globe Contact Information: Todd Seeley Principal Engineer Minh Quach: Minh Quach received his B.S.E.E. degree from Oregon State University, Corvallis, OR. He joined the Hewlett-Packard Company, Corvallis, OR, where he worked in RF and Microwave Test Engineering for four years and in Product and Test Technology & Development Engineering for two years. In 1998, he transferred to Fort Collins, CO, where he is now Senior Test Technology & Development Engineer at Agilent Technologies (spun off from Hewlett-Packard in 1999). Mr. Quach has authored five technical publications in the area of IC test, and was co-recipient of the Best Paper Award at the International Test Conference in 1999. He is frequently involved in training the technical and manufacturing staff at Agilent on high-speed test and measurement. Contact Information: Minh Quach |
