January 2000 Meeting Notice When/Where: Tuesday, January 11th, 2000. Silicon Graphics Café Iris, Building 5, 2025 Stierlin Court in Mountain View, CA. Time 7:30pm - 9:30pm. Topic/Speaker: "EMI and the PCB Fundamental Concepts and Design Techniques" -Mark Montrose Details: EMI and the PCB Fundamental Concepts and Design Techniques This presentation illustrates, in simplified form, how and why EMI gets developed within a printed circuit board (PCB) and the manner in which propagation occurs; radiated or conducted. Basic concepts are examined to remove the mystery on why problems are designed into a product, and how one can prevent making mistakes from happening time and time again. A major focus on this talk deals with the subject "Maxwell Made Simple." There are many parasitics and concerns that exist in any product design. Failure to recognize these items dooms a product to potential failure. For example, a component is not a component, but must be incorporated using a virtual ground/return structure. In addition, we must solve the complex portion of the impedance equation using device parameters that are not published by component manufacturer. Also, we implement outdated rules-of-thumb based on illogical concepts and bad advise provided by those who use to design PCBs that incorporated vacuum tubes or slow speed TTL logic. Components now operate in the sub-picosecond range, which present new challenges and opportunities for design and compliance engineers. Regardless of whether one is an entry level or senior designer, fundamental concepts never change. It is interesting to see how much information we have forgotten over the course of many years. The last portion of the talk will illustrate several design techniques that can be immediately implemented that have a long track record of success. At the completion of the talk, an open forum session will occur where any question related to EMI and PCB can be asked. This forum will last until it is time to get kicked out of the facility. Biography Mark Montrose is principal consultant of Montrose Compliance Services, Inc. Mark is a Senior Member of the IEEE, and is a current member of the Board of Directors for the IEEE EMC Society. He holds membership in the dB Society and TC-8, Product Safety Technical Committee. He has presented numerous papers on PCBs and EMC at IEEE International EMC Symposiums and Colloquiums in North America, Europe and Asia. Mark has authored several text/reference books published by IEEE Press: Printed Circuit Board Design Techniques for EMC Compliance, 1996, EMC and the Printed Circuit Board - Design, Theory and Layout Made Simple, 1999, And a contibuting author to the Electronics Packaging Handbook, 1999 (CRC/IEEE Press).
===== Best Regards Hans Mellberg EMC Consultant __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
